- Type of paper
: Paper in journal
Title: Thermally Stimulated Current in Glass-Laminated
Unsaturated Polyester Resins
- Authors:
- Babić, Lenija (177670)
Journal: Polymer Composites
Number: 6
Volume: 12
Year: 1991
Pages: from 384 to 390
Number of references: 7
Language: engleski
Summary: Experimental results are reported on the electrical
properties ofglass-laminated unsaturated polyester (UP) resins.
- Type of paper
: Paper in journal
Title: Glass Reinforcement and Optimum Polyester Laminates
- Authors:
- Gugić, Danko (181646)
Journal: Brodogradnja
Number: 1
Volume: 41
Year: 1993
Pages: from 37 to 43
Number of references: 13
Language: hrvatski
Summary: Laminates optimization based on the laminate maximum
bendingcapability and mass ratio is very important for the reduction ofhull
mass and hull construction expenses. The direct searchmethod was employed
for the dimensioning and optimization oflaminates with even number and
symmetric layers arrangement. As adesign variable, a resin-glass
reinforcement mass ratio in thelaminate layer was chosen. The optimization
for the laminatesproperties, the role of glass reinforcement in
laminateoptimization processes and the possibility of choosing theoptimum
laminate for a given bending moment are defined.
Keywords: glass reinforcement laminate optimization
- Type of paper
: Paper in journal
Title: Determination of elasticity properties of polyester
composites for structural analysis
- Authors:
- Smiljanić, Branimir
- Gugić, Danko (181646)
Journal: Polimeri
Number: 1
Volume: l6
Year: 1995
Pages: from 9 to 14
Number of references: 6
Language: hrvatski
Summary: Both the classicaland the numerical analysis of polyester
composite structure is based on the theory of elastsicity. This means that
a laminate is approximated to Hooke s material, which is specified by the
corresponding elasticity constants. The paper eyxamines the relations
between the stiffness matrix coefficients of Hooke s generalized law and
the engineering constants of Hooke s material (modulus of elasticity, shear
modulus, and Poisson s ratios). Eachas laminate layer is considerred as
orthotropic two-dimensional Hooke s material. The method of tensile
testsing, suitaable for obtaining the elasticity properties of laminate
layyers, is also discussed. The elasticity properties of a laminate are
determined numerically, considering the laminate as a structure consisting
of llayers.
Keywords: elasticity properties, polyester composites, structural analysis
- Type of paper
: Paper in journal
Title: Flexural properties and design of polymer composite beams
- Authors:
- Gugić, Danko (181646)
- Babić, Lenija (177670)
Journal: Polimeri
Number: 1
Volume: 15
Year: 1994
Pages: from 3 to 8
Number of references: 21
Language: hrvatski
Summary: Isotropic and orthotropic approaches are the two mosts
commonly used approaches to the study of flexural properties of polymer
composites. Analyzing the methods which determines the basic flexural
properties, such as stress and strain, flexural modulus and flexural
rigidity, the orthotropic approach is found to be more suitable. The
relation between the flexural modulus and both the tensile and the
compressive modulus has also been analized.
Keywords: design of beams, flexural rigidity, polymer composites, flexural modulus of elasticity
- Type of paper
: Paper in journal
Title: The effects of glass reinforcement on failure stsrain of
polyester laminates
- Authors:
- Gugić, Danko (181646)
- Babić, Lenija (177670)
Journal: Polimeri
Number: 3
Volume: 15
Year: 1994
Pages: from 84 to 87
Number of references: 4
Language: hrvatski
Summary: The tensile properties of 12 types of polyester laminates
are analysed, using the results of recent investsigations on flexural
properties of l4o woven roving and mat reinforced laminates. Applying
statistical analysis, a model has been worked out for the determination of
the relationship betsween failure strain and glass content and type of
reinforcement
Keywords: polyester laminates, failure strain, glass reinforcement
- Type of paper
: Paper in proceedings
Title: Efficiency Factor of Glass Fibre Mechanical Characteristic
in Glass/polyester Composites
- Authors:
- Stecenko, Tatjana
- Stevanović, Momčilo
- Smiljanić, Branimir
- Babić, Lenija (177670)
Proceedings title: Savjetovanje: Vlaknima ojačani polimerni kompoziti
Language: hrvatski
Place: Zagreb
Year: 1991
Pages: from 1 to 4
Meeting: Savjetovanje: Vlaknima ojačani polimerni kompoziti
Held: from 06/26/91 to 06/26/91
Summary: Macromechanical characteristics (strength, moduli,
failurestrains) of unidirectional glass fibre/polyester resin compositesof
different fibre content, are determined in tensile and threepoint flexure
tests. Interlaminar shear strength values areevaluated from data obtained
in short beam bend tests. Disscusionis performed through comparison of
strength and moduli resultswith values calculated by rule of mixture, while
obtained failurestrains are correlated to glass fibre and resin failure
strains,having in mind low fibre-matrix bond strength, assessed
byinterlaminar shear strength results.
- Type of paper
: Paper in proceedings
Title: The Fibre Contribution to the Tensile Strength of Glass
Mat Reinforced Polyesters
- Authors:
- Gugić, Danko (181646)
Proceedings title: Vlaknima ojačani polimerni kompoziti
Language: hrvatski
Place: Zagreb
Year: 1992
Pages: from 1 to 6
Meeting: Savjetovanje: Vlaknima ojačani polimerni kompoziti
Held: from 06/16/92 to 06/16/92
Summary: The paper deals with the fibre participation in the
tensilestrength of glass mat reinforced polyester laminates. The
fibreparticipation coefficient "k" is defined as the ratio of their cross
sections: the area which participate in the strengthdivided by the total
area. In the report the theoretical value ofthe participation coefficient
"kt" and average value "ksr" whichhad been calculated on the basis of the
measured results aredetermined.
- Type of paper
: Paper in proceedings
Title: Compressive Tangent Modulus of Glass Reinforced Polyesters
- Authors:
- Gugić, Danko (181646)
Proceedings title: Vlaknima ojačani polimerni kompoziti
Language: hrvatski
Place: Zagreb
Year: 1992
Pages: from 1 to 6
Meeting: Savjetovanje: Vlaknima ojačani polimerni kompoziti
Held: from 06/16/92 to 06/16/92
Summary: The compressive tangent moduls of the glass reinforced
polyestersdepends, among other things, on fibre weight fraction in
thelaminate as well as the fibre contibution to the compressivestrength of
the laminate. Using the regressive analysis it hasbeen found that there is
the relationship between compressivetangent modulus and the weight fraction
of fibre whichcontibution to the compressive strength of the laminate.
- Type of paper
: Paper in proceedings
Title: Tensile, Compressive and Flexural Tangent Moduli of the
Glass reinforced Polyesters
- Authors:
- Gugić, Danko (181646)
Proceedings title: Vlaknima ojačani polimerni kompoziti
Language: hrvatski
Place: Zagreb
Year: 1992
Pages: from 1 to 7
Meeting: Savjetovanje: Vlaknima ojačani polimerni kompoziti
Held: from 06/16/92 to 06/16/92
Summary: The difference between the tensile and the compressive
tangentmodulus of the glass reinforced polyesters defines the
flexuraltangent modulus. The expression by which the flexural
tangentmodulus is defined as the function of the tensile and thecompressive
tangent moduli is derived. The possibility to predictthe values of the
flexural and the compressive modulus by thementioned expression for the
various types of the laminates isanalysed.
- Type of paper
: Paper in proceedings
Title: Application of Polymer Materials in Marine Environment
- Authors:
- Hell, Zvonko (62995)
- Babić, Lenija (177670)
- Gugić, Danko (181646)
- Đuračić, Željko (181773)
Proceedings title: SORTA 92
Language: hrvatski
Place: Opatija
Year: 1992
Pages: from 609 to 615
Meeting: Teorija i praksa brodogradnje SORTA 92
Summary: The application of polymer materials to marine environment
hasbrought about a number problems as regards the choice of polymermaterial
with physical and chemical properties important insea-air conditions.
Faster ships, demands for lighterconstructions to make transport of larger
quantities of cargopossible, resistance to corrosion - these are the
factors thathave obliged the shipbuilders and scientific institutions
toreplace traditional materials (metals) with polymers. Theirapplication
requires interdisciplinary approach in the study ofrelevant factors for
marine use, safety and ecological factors.
- Type of paper
: Paper in proceedings
Title: A Research of Polymers Data Bank Model in Shipbuilding
- Authors:
- Šimundić, Slavko (124336)
- Hell, Zvonko (62995)
Proceedings title: SORTA 92
Language: hrvatski
Place: Opatija
Year: 1992
Pages: from 616 to 624
Meeting: Teorija i praksa brodogradnje SORTA 92
Summary: Building-up of the system for selection of polymer
materials inmaritime industry should include data bank and programe
supportfor selection of polymers with the relevant physical and
chemicalcharacteristics for shipbuilding. The papers deals with polymerdata
structure for maritime industry as well as the activitiesand procedures
necessary for build-up of the data bank.
- Type of paper
: Paper in proceedings
Title: Cable Fire Properties
- Authors:
- Škare, Javor
- Hell, Zvonko (62995)
Proceedings title: SORTA 92
Language: hrvatski
Place: Opatija
Year: 1992
Pages: from 673 to 682
Meeting: Teorija i praksa brodogradnje SORTA 92
Summary: If corresponding measures to avoid or restrict fires are
notapplied, fire may propagated by the burning of bundles ofelectrical
cables. This may generate toxic and suffocatinggases. Limitations in the
application of cables aboard the shipwith respect to their fire properties
defined by the SOLASconvention, by the rules and regulations of the
clasificationsocietes and national authorities are under discussion.
- Type of paper
: Paper in proceedings
Title: Application of Polymer Materials in Building and Launching
of Ships from Horizontal slipways
- Authors:
- Šarić, Ivo
- Vukman, Špiro (91582)
- Hell, Zvonko (62995)
Proceedings title: SORTA 92
Language: hrvatski
Place: Opatija
Year: 1992
Pages: from 625 to 633
Meeting: Teorija i praksa brodogradnje SORTA 92
Summary: Investigation of possible application of polymers in the
observedshipbuilding industry justifies its application in building
andlaunching of ships from horizontal slipways as well as inlaunching of
ships from the existing sloping slipways.
Investigation of the application of polymers within theshipbuilding
industry hes been discussed.
- Type of paper
: Paper in proceedings
Title: Palletization of Material Flows during Hull Construction
in the Croatian Shipyard Medium Size
- Authors:
- Šarić, Ivo
Proceedings title: SORTA 92
Language: hrvatski
Place: Opatija
Year: 1992
Pages: from 0 to 0
Meeting: Teorija i praksa brodogradnje SORTA 92
Summary: By application of palletization method of group elements
ofsection and of heavy sections, transport activities will bedecreased and
the construction of hull shortened.
In this paper the application of palletization in one of themajor Croatian
shipyard has been presented.
Keywords: palletozation hull assembly shipyard
- Type of paper
: Paper in proceedings
Title: Measuring of Gas Toxicity by Photoacoustic Spectroscopy
Method
- Authors:
- Lazarević, Životije (153410)
- Hell, Zvonko (62995)
Proceedings title: SORTA 92
Language: hrvatski
Place: Opatija
Year: 1992
Pages: from 653 to 660
Meeting: Teorija i praksa brodogradnje SORTA 92
Summary: The modern instruments for monitoring and measuring of the
toxicgases are based on photoacoustic spectroscopy. In
photoacousticspectroscopy (PAS) the gas to be measured is irradiated
byintermittent light of pre-selected wavelength. The gas moleculesabsorb
some of the light energy and convert it into an acousticsignal which is
detected by microphone. PAS is an inherently verystable method for
detecting very small concentrations of gas inships condition.
- Type of paper
: Paper in proceedings
Title: Experience in Application of Polymer Materials in
Shipbuilding
- Authors:
- Hell, Zvonko (62995)
- Šimundić, Slavko (124336)
- Mrklić, Željko (131191)
- Junaković, Zoran (139563)
- Ivanović-Surjan, Zoja (184394)
Proceedings title: IMAM 93
Language: engleski
Place: Varna, Bugarska
Year: 1993
Pages: from 163 to 169
Meeting: VI-th Congress of the IMAM
Held: from 11/15/93 to 11/20/93
Summary: The application of polymer materials and our experiments
onradiation crosslinked plasticised PVC pipes with improvedproperties for
shipbuilding industry has been presented in thispaper.
- Type of paper
: Paper in proceedings
Title: Conceptual model regarding development of organisational
and informational systems for preparation for production if shipbuilding
yard and their automatosation
- Authors:
- Šimundić, Slavko (124336)
Proceedings title: 2. Konferencija iz operacijskih istraživanja
Language: hrvatski
Place: Rovinj, Hrvatska
Year: 1992
Pages: from 385 to 397
Meeting: 2. Konferencija iz operacijskih istraživanja
Held: from 10/05/92 to 10/07/92
Summary: In this paper is given a theoretical model of organisation
andinformation method regarding preparation for production function.There
is also given a conceptual model for development ofautomatisation system of
preparation for production for buildinga ship. New automated menagement
system would be supported by anadequate software.
Keywords: shipyard organisation preparation for production information system automatisation and management
- Type of paper
: Paper in proceedings
Title: Approaches to research of polymer application in
shipbuilding
- Authors:
- Šarić, Ivo
- Hell, Zvonko (62995)
- Šimundić, Slavko (124336)
Proceedings title: 2. Konferencija iz operacijskih istraživanja
Language: hrvatski
Place: Rovinj, Hrvatska
Year: 1992
Pages: from 0 to 0
Meeting: 2. Konferencija iz operacijskih istraživanja
Held: from 10/05/92 to 10/07/92
Summary: This paper deals with an example of the approach to
research ofpolymer application in shipbuilding with special reference
tomarine equipment.
Keywords: shipbuilding polymer materials
- Type of paper
: Paper in proceedings
Title: An organization model of automatized management in the
shipbuilding process
- Authors:
- Šimundić, Slavko (124336)
- Munitić, Ante
- Hell, Zvonko (62995)
Proceedings title: Modelling Simulation and Identification
Language: engleski
Place: Wakayama, Japan
Year: 1994
Meeting: IASTED International Conference
Held: from 09/13/94 to 09/16/94
Summary: A shiupbuilding process is a very complex and expensive
endeavour. A greit number of cooperating organizations take part in it.
Their activities are to be coordinated and as tremendous quantities of
production and business data are to be processed.
The paper presents both a theoretical scheme of preparation, and a new of
development concept of automatized production preparationin the
shipbuilding process.
An adequate sofware package will be provided for the introduced
asutomatized management system.
- Type of paper
: Paper in proceedings
Title: Pipes in Wessels and Offshores improved with Radiation
Technology
- Authors:
- Hell, Zvonko (62995)
- Mrklić, Željko (131191)
- Šimundić, Slavko (124336)
- Junaković, Zoran (139563)
Proceedings title: The International Association of Science and Technology for Development-IASTED
Language: engleski
Place: Anaheim, USA
Year: 1995
Meeting: International Conference on Applied modelling
Held: from 06/15/95 to 06/17/95
Summary: Radiation crosslinking of PVC pipes in the presence of
polyfunctional monomer was investigated.
- Type of paper
: Paper in proceedings
Title: An Organization of Automatized Management in the
Shipbuilding Process
- Authors:
- Šimundić, Slavko (124336)
- Munitić, Ante
- Hell, Zvonko (62995)
Proceedings title: IMAM 95
Language: engleski
Place: Dubrovnik
Year: 1995
Pages: from 758 to 767
Meeting: Proceedings of the VII Congress of the International Maritime Association of the Mediterranean
Held: from 04/23/95 to 04/27/95
Summary: A shipbuilding process is a very complex and expensive
endeavor. A great number of cooperating organizations take part in it.
Their activities are to be coordinated and tremendous quantities of
production and business data are toi be processed. The paper presents both
theoretical scheme of preparation, and a new model of development concept
of automatized production preparation in the shipbuilding process. An
adequaste software pckage will be provided for the introduced automatized
management system.
- Type of paper
: Paper in proceedings
Title: Testing of the Aging and Corrosion of Materials
- Authors:
- Hell, Zvonko (62995)
- Mrklić, Željko (131191)
- Šimundić, Slavko (124336)
- Sertić, Drago
Proceedings title: IMAM 95
Language: engleski
Place: Dubrovnik
Year: 1995
Pages: from 623 to 631
Meeting: VI-th Congress of the IMAM
Held: from 04/23/95 to 04/27/95
Summary: All the materials are subject to ageing in space and time
depending upon the specific characteristics. The ageing is affected by the
ambient agressiveness and corrosion processes. These effects may be defined
for a major number of materials as an unintentional wear of the material
due to physical, chemical, mechanical and biological ambient influence
resulting in the change of the characteristics. The corrosion processes
occur in exspressively aggresive environments, and with respect to the
characteristics of observed materials, they bring to a parytial or complete
decay of the product. The testings of the polymer materials and procedures
of protection enables to obtain materials with new characteristics as for
the resistance and dureability are concerned, and in such a way also to
widen their application as new materialss. The paper reviews in particular
hthe development of the Testing station for natural ageing and corrosion of
materials in a site near Split.
- Type of paper
: Paper in proceedings
Title: Influence of Bimodulus Layers on Flexural Rigidity of
Glass Reinforced Polyester Laminate
- Authors:
- Gugić, Danko (181646)
- Naranča, Nikola
Proceedings title: IMAM 95
Language: engleski
Place: Dubrovnik
Year: 1995
Pages: from 788 to 797
Meeting: VI-th Congress of the IMAM
Held: from 04/23/95 to 04/27/95
Summary: Glass reinforced polyester laminates are usually in
structural analysis treated as Hooke s material defined by thickness and
Youngs modulus of elasticity. Polyester resin is a bimodular material (it
has different tensile and compressive modulus), and glass fibres can carry
a larger load in tension than in compression, thus tensile and compressive
modulus of laminates differ. Because of this, with bent loaded laminates
(ship plating), flexural rigidity of laminates, which depends on tensile
and compressive modulus of layers and on the position of layers in the
cross section of a laminate, should be taken in consideration. For the
determination of flexural rigidity of a laminate, it is necessery to find
the position of the neutral level surface which does not pass through the
cross section centre of the laminate. In this paper, a mathematical model
of a laminate is given, and on its basis expressions for determing the
position of the neutral level surface and flexural rigidity are derived.
The influence of bimodulus layers on the flexural rigidity of laminates is
analysed by a PC program. Theoretical and experimental values of the
flexural rigidity of glass mast and roving reinforced laminates show
excellent correlation. Since the presented theory gives smaller values for
the flexural rigidity, bimodulus layers should be considered while
dimensioning bent loaded laminates.
- Type of paper
: Paper in proceedings
Title: A research on possibilities for improvement of the steel
stock-yard organization in the shipbuilding company in terms of information
flows
- Authors:
- Šimundić, Slavko (124336)
- Munitić, Ante
- Hell, Zvonko (62995)
Proceedings title: SORTA 94
Language: engleski
Place: Dubrovnik
Year: 1995
Pages: from 3O6 to 312
Meeting: Xl simpozij teorija i praksa brodogradnje In memoriam Prof. Leopold Sorta
Held: from 05/19/95 to 05/21/95
Summary: Being a coplex techno-economic system the shipbuilding
company has a constant need for research of information systems and
information flows for the purpose of achieving much better managing and
functioning of production and buisiness operations.
In order to examine the problem approch related to the information flowsof
the steel stock-yard in the Shipbuilding company the author considers
neccessary to structure the level of sophistication of information flows,
to analyse problems and eventually, to propose the new global survey of the
steel stock-yard information flowsin the Shipbuilding industry as well as
the survey other participants in the Shipbuilding process.
- Type of paper
: Paper in proceedings
Title: New (polymer) materials in shipbuilding and personnel
education
- Authors:
- Mrklić, Željko (131191)
- Hell, Zvonko (62995)
- Šimundić, Slavko (124336)
Proceedings title: SORTA 94
Language: hrvatski
Place: Dubrovnik
Year: 1994
Pages: from 298 to 305/2
Meeting: 11. Dani društva plastičara i gumaraca
Held: from 05/19/94 to 05/21/94
Summary: The increasing applications of polymers in shipbuilding
give rise to a series of new technological issues and possibilities.
However, in shipbuilding the severe criteria have been imposed to
structural, installation and other materials regarding their
properties,persistence etc. Therefore, the efficient education of personnel
is needed to enable them to perform all installation and mounting of
polymers according to the technical requirements.
After considering the existing educational programmes for shipbuilding
occupations it seems obvious that they are very insufficient and do not
correspond to the requirements imposed by the increasing polymer
applications.
- Type of paper
: Paper in proceedings
Title: Natural aging and corrosion investigation of materials
- Authors:
- Hell, Zvonko (62995)
- Mrklić, Željko (131191)
- Šimundić, Slavko (124336)
Proceedings title: SORTA 94
Language: hrvatski
Place: Dubrovnik
Year: 1994
Pages: from 201 to 209/2
Meeting: Xl simpozij teorija i praksa brodogradnje In memoriam Prof. Leopold Sorta
Held: from 05/19/94 to 05/21/94
Summary: All materials aare subject to aaging and corrosion in space
and time depending on their specific properties. Aging and corrosion are
affected by the environmental influences. Those processes for majority of
materials can be defined as unintentionalwear of material caused by
physical, chemical, mechanical an biologic impact from the environment,
while for a small number of materials those influences does not affect the
change of properties.
Evaluation of aging is based on surveying the change of appearance chemical
and physical properties which makes possible defining the degree of aging.
Accurate predictinbg of durability of complex formulations which contain
besides polymer, stabililzers, fillers, plasticisers, is difficult to
determine without systematic testing of natural and accelerated asging.
However, one of the basic problems is a corrlation between the resuzlts
obtained by accelerated testings and those gained through natural aging.
- Type of paper
: Paper in proceedings
Title: Realization and development of the project "Application of
polymers in shipbuilding"
- Authors:
- Hell, Zvonko (62995)
- Šimundić, Slavko (124336)
- Hrboka, Ivica
- Mrklić, Željko (131191)
- Škare, Javor
- Vulić, Nenad
- Babić, Lenija (177670)
- Gugić, Danko (181646)
- Ivanović-Surjan, Zoja (184394)
Proceedings title: SORTA 94
Language: hrvatski
Place: Dubrovnik
Year: 1994
Pages: from 289 to 297/2
Meeting: Xl simpozij teorija i praksa brodogradnje In memoriam Prof. Leopold Sorta
Held: from 05/19/94 to 05/21/94
Summary: Application of polymers in shipbuilding represents nowedays
in the developed countries a new field of organized activity, from basic
sdcientific to applicative investigations. This project has been started
with the aim of investigation into the polymer applications in
shipbuilding, offshore technology and underwater technology.
This issue has been presented on many scientific meetings sponsored by the
Chamber of Technology, Science and Informatics.
The aim of the work so far was to ascquaint the industsry of Plastic
materials in Croatia with the capaabilities for elaboration of own
programmes for the needs of shipbuilding and to offer the alternative
materials to shipbuilding. During the three-years work on the project a
number of scientific and professional papers was published intended for
professionals empolyed in shipbuilding and plastics processing industry.
- Type of paper
: Paper in proceedings
Title: Analyse of plastic pipes application in ship piping
systems
- Authors:
- Hrboka, Ivica
- Hell, Zvonko (62995)
- Škare, Javor
Proceedings title: SORTA 94
Language: hrvatski
Year: 1994
Pages: from 216 to 224/2
Meeting: Xl simpozij teorija i praksa brodogradnje In memoriam Prof. Leopold Sorta
Held: from 05/19/94 to 05/21/94
Summary: The possibility of the substitution the steel pipes with
the plastic pipes in the ship piping systems is analysed in the report. The
qualities of the plastic pipes are noted. After that the possibilities of
their application on the piping systems are systematized. On the base of
this research the data base with the complete review on the possibilities
of the plastic pipes application on the ship piping systems is elaborated.
- Type of paper
: Paper in proceedings
Title: Type testing requirements for polymer bearings
- Authors:
- Vulić, Nenad
- Hell, Zvonko (62995)
Proceedings title: SORTA 94
Language: hrvatski
Place: Dubrovnik
Pages: from 282 to 288/2
Meeting: Xl simpozij teorija i praksa brodogradnje In memoriam Prof. Leopold Sorta
Held: from 05/19/94 to 05/21/94
- Type of paper
: Paper in proceedings
Title: The role of rubber products durability in marine
environment ageing conditionsč
- Authors:
- Bravar, Mladen
- Jelenčić, Jasenka
- Hell, Zvonko (62995)
- Markovčić, Nada
Proceedings title: SORTA 94
Language: hrvatski
Place: Dubrovnik
Year: 1994
Pages: from 191 to 200/2
Meeting: Xl simpozij teorija i praksa brodogradnje In memoriam Prof. Leopold Sorta
Held: from 05/19/94 to 05/21/94
Summary: This overview presents and discusses issues with numerous
delemmas and difficulties arising in the course of the selection of
reliable elastomeric materials for the production of structural parts and
products in shipbuilding. The existing lack of materials and product
standardization concerning the durability in service in marine environment
may be partly compensated by considering and reasonaably using the novel
findings obtained in outdoor terrestrial environmental ageing and in
accelerated laboratory tests. The need for establishing the real marine
environment polymer ageing experiments and simulating them appears as a
required assignment of materials scientists in naval architecture and
shipbuilding.
- Type of paper
: Paper in proceedings
Title: A research into polymers information flows in shipbuilding
- Authors:
- Šimundić, Slavko (124336)
- Hell, Zvonko (62995)
- Mrklić, Željko (131191)
Proceedings title: SORTA 94
Language: hrvatski
Place: Dubrovnik
Year: 1994
Pages: from 273 to 281/2
Meeting: Xl simpozij teorija i praksa brodogradnje In memoriam Prof. Leopold Sorta
Held: from 05/19/94 to 05/21/94
Summary: A shipbuilding company represents a large techno-economic
system which is having a constant need for research into the information
flows for the purpose of establishing better manamement and better
functioning of production and business activities.
In order to examine the problem approach to this paper ealing with the
information flows in marine shipbuilding, the authors consider it necessary
to research the information flows of polymer materials in shipbuilding.
- Type of paper
: Paper in proceedings
Title: Protective floating booms as means for the prevention of
the expansion of oil slicks on rivers and the sea
- Authors:
- Matošić, Duško
- Hell, Zvonko (62995)
Proceedings title: SORTA 94
Language: hrvatski
Place: Dubrovnik
Year: 1994
Pages: from 327 to 335/2
Meeting: Xl simpozij teorija i praksa brodogradnje In memoriam Prof. Leopold Sorta
Held: from 05/19/94 to 05/21/94
Summary: The problems connected with the discharge of oil, from the
technological aspect, are not caused by oil releases throughout the year,
but by releases of large quantities of oil within small areas in relatively
short periods of time. These discharges are caused by accidents brought
about mostly by weather conditions, human factors or faulty technical
equipment. Frequent tanker accidents over the last years (Alaska, Morocco,
Genoa Bay, Shetland Islands) which resulted in the escape of oil into the
sea have caused ecologic catastrophies. Aas a consequence of this a series
of constructional changes of tanker-vessels have been introduced, and new
technological solutions for the cleaning-up of oil slicks on the sea
surface have been developed. The paper deals with a technological solution
for the prevention of the expansion of oil slicks by protective floating
booms.
- Type of paper
: Paper in proceedings
Title: The effect of glass content and type of reinforcement on
flexural properties of laminates
- Authors:
- Gugić, Danko (181646)
- Babić, Lenija (177670)
- Hell, Zvonko (62995)
- Ivanović-Surjan, Zoja (184394)
- Babić, Lenija (177670)
- Editors
- Ivanović-Surjan, Zoja (184394)
Proceedings title: SORTA 94
Language: hrvatski
Place: Dubrovnik
Year: 1994
Pages: from 25425 to 259/2
Meeting: Xl simpozij teorija i praksa brodogradnje In memoriam Prof. Leopold Sorta
Held: from 05/19/94 to 05/21/94
Summary: Experimentally determined flexural strength and modulus of
various laminates were used in order to determine the dependence of
flexural properties on the type of reinforcement and glass content by
applying regression analysis. The proposed regression modeles enable the
choice of the laminates having better properties than those required by
Classification Societies.
- Type of paper
: Paper in proceedings
Title: Toxicity of mixed gases found in fire role of ship cables
- Authors:
- Škare, Javor
- Hell, Zvonko (62995)
- Vulić, Nenad
- Perić, Andro
Proceedings title: SORTA 94
Language: hrvatski
Place: Dubrovnik
Year: 1994
Pages: from 225 to 230/2
Meeting: Xl simpozij teorija i praksa brodogradnje In memoriam Prof. Leopold Sorta
Held: from 05/19/94 to 05/21/94
Summary: The toxic effects of exposure to fire effluents were
probably observed by prehistoric man on the first attempt to move fire into
a cave. The contribution of carbon monoxide to the toxicity of fire
effluents has been recognized for more then a century. Fire can be a
catastrophe for any ship, specially for a passenger ship. The analysis of
fire on board Scandinavian Star, introduced many conclusions, which were
included in the documents of the International Maritime Organization (IMO),
thus promoting safety of human life at sea. Insulation of ship s cables
during fire creates toxic gases and large quantities of cables in passenger
ship public spaces impose special care to be taken.
- Type of paper
: Paper in proceedings
Title: "KARBON" and its products in shipbuilding industry
- Authors:
- Bešić, Zdravka
Proceedings title: SORTA 94
Language: hrvatski
Place: Dubrovnik
Year: 1994
Pages: from 153 to 164/3
Meeting: Xl simpozij teorija i praksa brodogradnje In memoriam Prof. Leopold Sorta
Held: from 05/19/94 to 05/21/94
Summary: In "KARBON"broad products programm, covering a broad
application field, it is possible extract some products having big
possibilities or being in application in shipbuilding industry in ship
finishing. There are, prior, dispersive adhesives on basis aqueous polymer
systems for different substsracts adhesion on different base (PVC
sheetings, textile tampons, wood, etc.), and insulators amoung which PU
material IZOTAN ES represents integral protection system being useful as
thermal and sound isolation device for pipeline in industry, buildings and
shipbuilding.
- Type of paper
: Paper in proceedings
Title: Modern polyurethanbe sealing and adhesive systems
- Authors:
- Huonder, Anton
Proceedings title: SORTA 94
Language: hrvatski
Place: Dubrovnik
Year: 1994
Pages: from 166 to 176/3
Meeting: Xl simpozij teorija i praksa brodogradnje In memoriam Prof. Leopold Sorta
Held: from 05/19/94 to 05/21/94
Summary: In enless varietes of processing treatements in
shipbuilding a traditional sealing should be neglected. Following review
presents a broad spectrum of application of a new polyurethane technology.
- Type of paper
: Paper in proceedings
Title: The impermeable sewer systems
- Authors:
- Herites, Renata
Proceedings title: SORTA 94
Language: hrvatski
Place: Dubrovnik
Year: 1994
Meeting: Xl simpozij teorija i praksa brodogradnje In memoriam Prof. Leopold Sorta
Held: from 05/19/94 to 05/21/94
Summary: This paper deals with problems concerning sewer system
impermeaability with regard to the provisions and tasks of the personnel in
charge of finding out the state of the existing systems.
The solution offered includes the latest impermeable sewer systems.
- Type of paper
: Summary in proceedings
Title: Polymeric materials in ship cable installation and passive
fire protection measures
- Authors:
- Škare, Javor
- Šimundić, Slavko (124336)
- Hell, Zvonko (62995)
Proceedings title: 11. Dani društva plastičara i gumaraca
Language: hrvatski
Place: Zagreb
Year: 1993
Pages: from 18 to 18
Meeting: 11. Dani društva plastičara i gumaraca
Held: from 06/15/93 to 06/18/93
Summary: The limitations to cable utillisation with respect to their
fireresistance features, as defined by SOLAS Convention,Classification
Societies Rules and national authoritesRegulations, have been analysed.
Fire-spreading protection hasbeen often made by adding halogen to polymers
used for cablesheats. Since they considerably increase the corrosive
andtoxical gases, new solutions have been searched for.
- Type of paper
: Summary in proceedings
Title: Investigation of marine fouling on the glass plastics
plates and reinforced concrete pillars immerged into the sea
- Authors:
- Špan, Josip
- Hell, Zvonko (62995)
Proceedings title: 11. Dani društva plastičara i gumaraca
Language: hrvatski
Place: Zagreb
Year: 1993
Pages: from 33 to 33
Meeting: 11. Dani društva plastičara i gumaraca
Held: from 06/15/93 to 06/18/93
Summary: The aim of the research was to gather data on qualitative
andquantitative system of the fouling communities to understand thesettling
succession of organisms within the fouling community,and in particular, to
folow-up and understand the oscillations ofthe fouling community during one
year period.
The investigations were carried-out which enabled determinationof the
faunal and floral system of the fouling community,defining of the main
fouling components, seasonal settlingsuccession of organisms and the
fouling biomass.
- Type of paper
: Summary in proceedings
Title: The effect of glass reinforcement on the elongation at
break of polyester laminates
- Authors:
- Gugić, Danko (181646)
- Babić, Lenija (177670)
Proceedings title: 11. Dani društva plastičara i gumaraca
Language: hrvatski
Place: Zagreb
Year: 1993
Pages: from 35 to 35
Meeting: 11. Dani društva plastičara i gumaraca
Held: from 06/15/93 to 06/18/93
Summary: In the shipbuilding practice the dimensioning of
polymericcomposite structures by taking into consideration the
allowedstresses has been abandoned and the transition to
dimensioningaccording to the allowed deformation has been made.
This paper treats statistically the tensile strength featuresexamination
results of 140 laminates reinforced with glass matteand woven roving.
The mean value of tensile strength as function of mass portion ofglass
reinforcement in the laminate has been treated and termshave been found for
calculation of tensile strength which takeinto consideration the portion of
matte and woven roving in glassreinforcement.
- Type of paper
: Summary in proceedings
Title: Information flows into polymers applications for
shipbuilding
- Authors:
- Šimundić, Slavko (124336)
- Škare, Javor
- Perišić, Ante
- Hell, Zvonko (62995)
Proceedings title: 11. Dani društva plastičara i gumaraca
Language: hrvatski
Place: Zagreb
Year: 1993
Pages: from 61 to 61
Meeting: 11. Dani društva plastičara i gumaraca
Held: from 06/15/93 to 06/18/93
Summary: It has been a tradition in shipbuilding to use solutions
based ondifferent metal structures although various alternatives to
thesesolutions exist nowdays based on polymeric material structures.The
information system target is to direct designer towardsapplication of such
project alternatives.
- Type of paper
: Summary in proceedings
Title: The use of polymeric composites in offshore
- Authors:
- Hell, Zvonko (62995)
- Babić, Lenija (177670)
- Gugić, Danko (181646)
- Šimundić, Slavko (124336)
- Škare, Javor
Proceedings title: 11. Dani društva plastičara i gumaraca
Language: hrvatski
Place: Zagreb
Year: 1993
Pages: from 62 to 62
Meeting: 11. Dani društva plastičara i gumaraca
Held: from 06/15/93 to 06/18/93
Summary: Polymeric composite materials provide for great savings
when usedin offshore technology through assembly of platforms
andmaintenance during exploitation.
The paper presents the most often used polymers for matrices, thelimiting
factors for composites application as related tosafety-at-work measures, as
well as further research enlargementof asortment of products designed for
offshore.
- Type of paper
: Summary in proceedings
Title: Application of composite materials in shipbuilding
- Authors:
- Hell, Zvonko (62995)
- Mrklić, Željko (131191)
Proceedings title: XIV skup hrvatskih kemičara i IV hrvatski simpozij o makromolekulama
Language: hrvatski
Place: Zagreb
Year: 1995
Meeting: XIV skup hrvatskih kemičara i IV hrvatski simpozij o makromolekulama
Held: from 02/06/95 to 02/08/95
Summary: The application of composite polymers to marine environment
has brought adbout a number of prob lems as regards the choice of polymer
materials with physical and chemical properties, important in sea-air
conditions. Faster chips, demands for higher constructions to make
transport of larger quantities of cargo possible, resistance to corrosion -
these are the factors that have obliged the shipbuilders and scientific
institutions to replace traditional materials (metals) with polymers. New
materials are mosty of organic origin and subjec to structural changes
resulting from chemical processes that occur withn macromolecules by
asging. Some polymer material may produce dangerous gases in case of fire.
Off all materrials polymers are most numerous, very important in
shsipbuilding and in marine environment. Their application requires
interdisciplinary approach in the study of all relevant fasctors for marine
use, safety and ecological factors.
Keywords: shipbuilding, polymer materials, toxicity
- Type of paper
: M.A.
Title: Designing anticorrosive coatings protection ih
shipbuilding
Faculty: Tehnološki fakultet Sveučilište u Zagrebu
Date of defense: 04/15/91
Language: hrvatski
Number of pages: 186
Summary: The design of protection by means of coatings in
shipbuildingrewquires knowlege of the folowing data:
the type of coat to be used, the volume solids, the applicationmethods, the
conditions to be met in use, the chemical resistanceof coating, the
recommended standard for surfaces preparation,the drying and curing times,
the roughness of the metal surface,the application conditions, the types
and purposes of theon-board space, the practocal coating coverage, the dry
and wetfilm thicknesses, the amount of coating needed and its
differencefrom the ideal.
To facilitate the specification of coatings for ship protection,model has
been developed for evaluating the required data. Thismodel has been used in
constructing and expert system whichproduces specifications for corrosion
protection that areoptimal, taking into account both technical and economic
factors.
Keywords: application conditions design data design of protection by coatings difference from the ideal dry and wet film thickness expert system optimal proteczion practical coating coverage type of coat
- Type of paper
: M.A.
Title: State-of-the-Art of Hull Structure Coatings Protection
Faculty: Fakultet kemijskog inženjerstva i tehnologije Sveučilište u Zagrebu
Date of defense: 06/15/92
Language: hrvatski
Number of pages: 91
Summary: In this work was developed and applied CPMS method
("Corrosionprotection method for ships") for assessment corrosion
protectionstate by coatings on ships in situ.
Keywords: corrosion protection state assessment coatings ships construction paint testing
- Type of paper
: M.A.
Title: An Approach to Ships Electrical Power Plants
Faculty: Elektrotehnički fakultet Sveučilište u Zagrebu
Date of defense: 12/15/92
Language: hrvatski
Number of pages: 178
Summary: Ships electrical ppower plants design is presented as
sequence ofiterative processes where methods of system analysis should
beapplied.
In course of design special attention is given to fire protectionand safety
measures for the increase of system availability.Attention should be given
to safety regulations for shipconstruction since there is no full
coordination of criteria onthe international level.
Keywords: cables compound fire protection toxicity expert system
- Type of paper
: Technical report
Title: On chemical resestance of polymer composites and
possibilities of their application in shipbuilding
- Authors:
- Hell, Zvonko (62995)
Ordering party: Hrvatsko društvo za materijale i tribologiju
Institution depot: Hrvatsko društvo za materijale i tribologiju
Year: 1994
Number of pages: 11
Language: hrvatski
Summary: The application of composite polymers to marine environment
has brought about a number of problems as regards the choice of polymer
materials with physical and chemical properties, important in sea-air
conditions. Faster chips, demands for lighter constructions to make
transport of larger quantities of cargo possible, resistance to corrosion -
these are the factors that have obliged the shipbuilders and scientific
institutions to replace traditional materials (metals) with polymers. New
materials - polymers, are mostly of organic origin and subject to
structural changes resulting from chemical processes that occur within
macromolecules by aging. Some polymer materials may produce dangerous gases
in case of fire. Of all materials polymers are mosts numerous, very
important in shipbuilding and in marine environment. Their application
requires interdisciplinaray approach in the stsudy of all relevant factors
for marine use, safety and ecological factors.
Keywords: polimer composite, resistance to corrosion, shipbuilding
