tel.: +385 1 459 44 44, fax: +385 1 459 44 69

E-mail: ured@znanost.hr

**Type of paper**:*Paper in journal*

**Title:**Plates and planes structures strengthened by girders

**Authors:**- Gotovac, Blaž (14020)
- Mihanović, Ante (30725)

**Journal**: Inženjersko modeliranje

**Number**: 3

**ISSN**: 0352-9495

**Volume**: 3

**Year**: 1990

**Pages**: from 175 to 180

**Number of references**: 4

**Language**: hrvatski

**Summary**: This paper presents the programme for the static analysis of the plate and plane structures strengthened by girders. The numerical model is formulated by 2D and 1D combined isoparametric finite elements. The geometry of the structure may be arbitrarily chosen. The addition of 1D elements does not increase the number of degrees of freedom of the global model.

**Keywords**: numerical model, plate, beam

**Type of paper**:*Paper in journal*

**Title:**Implementation of the analytical solutions in the finite element method

**Authors:**- Gotovac, Blaž (14020)
- Gusić, Goran

**Journal**: Engineering modelling

**Number**: 3

**ISSN**: 0352-9495

**Volume**: 5

**Year**: 1992

**Pages**: from 107 to 111

**Number of references**: 7

**Language**: engleski

**Summary**: This paper presents an application of well known analytical solutions for removing certain restrictions referred to the local effect simulation in the finite element method. The procedure is illustrated by the problem of plate bending which are subjected to concentrated load. The analytical solution is applied in the immediate neighbourhood of the concentrated load as a "particular" part of the total solution, while the "homogenous" part of the solution is obtained on the whole region by means of finite element technique. The given examples present high accuracy of the considered approach achieved by coarse finite element meshes. This technique can be also applied to problems of another type, using St. Venant's principle of the equivalent applied forces outside of the loaded region.

**Keywords**: analytical solution, plate bending, concentrated load

**Type of paper**:*Paper in journal*

**Title:**Numerical analysis of engineering structures composed of surface and line elements

**Authors:**- Gotovac, Blaž (14020)
- Kozulić, Vedrana (176112)

**Journal**: Engineering modelling

**Number**: 3-4

**ISSN**: 1330-1365

**Volume**: 7

**Year**: 1994

**Pages**: from 97 to 108

**Number of references**: 25

**Language**: engleski

**Summary**: This paper presents the new isoparametric shell finite element and its features in the numerical analysis of complex engineering structures. Each element node has six degrees of freedom, i.e. three translations and three rotations. This shell finite element is derive from the 20-node three dimensional element and it is based on the degenerated continuum concept. The introduction of the finite rotational stiffness of the shell around the normal into its middle surface, which usually absents in the shell analysis, is performed in the same way as the inclusion of the rotational degree of freedom into a membrane. In this paper, the drilling degree of freedom in the shell element node is evaluated from equilibrium equations of the Cosserat continuum by abandoning the usual assumption that the stress tensor is symmetric. The procedure is based on the variational formulation which implies independent displacement and rotation fields. The new isoparametric shell finite element with six degrees of freedom per node enables a combination with different types of finite elements because it ensures compatibility of displacements and rotations at their connections. It is also suitable for modelling folded shell structures. This work deals with a combination of this shell element wiyh the standard beam finite element, so that an efficient tool for the numerical analysis of structures composed of shells, plates, walls, beams and columns obtained. The capabilities of the proposed shell element are given through various numerical and practical examples.

**Keywords**: shell elements, beam elements, drilling degree of freedom, Cosserat continuum, variational formulation.

**Type of paper**:*Paper in proceedings*

**Title:**Interface elements

**Authors:**- Gotovac, Blaž (14020)
- Marović, Pavao (70744)
- Kozulić, Vedrana (176112)

**Editors**- Radić, Jure

**Proceedings title**: Zbornik radova Prvog radnog sabora Graditelji u obnovi Hrvatske

**Language**: hrvatski

**Place**: Zagreb

**Year**: 1992

**Pages**: from 143 to 148

**Meeting**: Radni sabor "GRADITELJI U OBNOVI HRVATSKE"

**Held**: from 06/25/92 to 06/27/92

**Summary**: The existing approach and software based on Finite ElementMethod is often not sufficient for the numerical simulation ofthe behavior of built structures, cracks modelling andsoil-structure interaction. A special type of finite "interface"element is developed for the proper modelling of joints, cracks,glued conjunctions and various types of contacts. The interfaceelements are used as materially and geometrically nonlinear onlyat particular portions, while the remaining part is treated onthe linear, and only exceptionally nonlinear, analysis level.

**Keywords**: built structures, crack, joint, contact

**Type of paper**:*Paper in proceedings*

**Title:**Interaction problem in elastic analysis

**Authors:**- Gotovac, Blaž (14020)
- Marović, Pavao (70744)
- Kozulić, Vedrana (176112)

**Editors**- Fischinger, Matej
- Lopatič, Jože
- Saje, Franc

**Proceedings title**: Zbornik radova 14. zborovanja gradbenih konstruktorjev Slovenije

**Language**: slovenski

**Place**: Bled, Slovenija

**Year**: 1992

**Pages**: from 295 to 302

**Meeting**: 14. zborovanje gradbenih konstruktorjev Slovenije

**Held**: from 09/15/92 to 09/17/92

**Summary**: In this paper one approach for solving a interaction problembetween bodies which are stil in elastic range is shown. Namely,the existing approach and software based on finite element methodis often not sufficient for the numerical simulation of thebehaviour of built structures, cracks modelling and soil -structure interaction. A special type of finite "interface"element is developed for the proper modelling of joints, cracks,glued conjunctions and various types of contacts. The interfaceelements are used as materially and geometrically nonlinear onlyat particular portions, while the remaining part is treated, fornow, on the linear and elastic level.

**Keywords**: interaction, crack, glued conjunction, contact

**Type of paper**:*Paper in proceedings*

**Title:**Nonlinear analysis of a cooling tower

**Authors:**- Damjanić, Frano B. (8883)
- Gotovac, Blaž (14020)
- Kozulić, Vedrana (176112)
- Stanek, Marjan

**Editors**- Fischinger, Matej
- Lopatič, Jože
- Saje, Franc

**Proceedings title**: Zbornik 15. zborovanja gradbenih konstruktorjev Slovenije

**Language**: slovenski

**Place**: Bled, Slovenija

**Year**: 1993

**ISBN/ISSN**: 86-80223-28-X

**Pages**: from 189 to 196

**Meeting**: 15. zborovanje gradbenih konstruktorjev Slovenije

**Held**: from 09/16/93 to 09/17/93

**Summary**: A cooling tower under gravity and wind load is considered. Thespecialist finite shell element programme CONSHELL for theanalysis of reinforced concrete shell structures is employed. Theprogramme includes modelling of the most dominant nonlinearconcrete and reinforcement behaviour (Multiaxial elastoplasticcompression and crushing, and tensile cracking of concrete, aswell as one-dimensional elastoplastic steel behaviour). Thelayered element formulation permits an easy reinforcementlocation. The example shown illustrates a need for realisticnonlinear analysis when a complex structure is to be designed.

**Keywords**: cooling tower, reinforced concrete, shell, nonlinear analysis

**Type of paper**:*Paper in proceedings*

**Title:**Additional rotational degree of freedom in the mid-surface of shell elements

**Authors:**- Gotovac, Blaž (14020)
- Kozulić, Vedrana (176112)
- Damjanić, Frano B. (8883)

**Editors**- Fischinger, Matej
- Lopatič, Jože
- Saje, Franc

**Proceedings title**: Zbornik 15. zborovanja gradbenih konstruktorjev Slovenije

**Language**: slovenski

**Place**: Bled, Slovenija

**Year**: 1993

**ISBN/ISSN**: 86-80223-28-X

**Pages**: from 229 to 236

**Meeting**: 15. zborovanje gradbenih konstruktorjev Slovenije

**Held**: from 09/16/93 to 09/17/93

**Summary**: Introduction of an additional rotational degree of freedom to theplane stress analysis is presented. Analogical procedure isemployed in order to introduce the sixth degree of freedom atnodes of shell elements with constrained rotation around thenormal to the shell mid-surface. The proposed procedure is provedto be very convenient for modelling of beam and shell elementconnections.

**Keywords**: rotational degree of freedom, shell, normal, beam

**Type of paper**:*Paper in proceedings*

**Title:**Nonlinear analysis of a complex engineering structures

**Authors:**- Gotovac, Blaž (14020)
- Damjanić, Frano B. (8883)
- Kozulić, Vedrana (176112)
- Stanek, Marjan

**Editors**- Radić, Jure

**Proceedings title**: Zbornik radova 2. Radnog sabora Graditelji u obnovi Hrvatske

**Language**: hrvatski

**Place**: Zagreb

**Year**: 1993

**ISBN/ISSN**: 953-6175-02-9

**Pages**: from 127 to 132

**Meeting**: Drugi radni sabor GRADITELJI U OBNOVI HRVATSKE

**Held**: from 10/13/93 to 10/15/93

**Summary**: In the endeavour to complex structures be constructed morequalitative and to be more stable, their completely analysis isneedful. In this paper a cooling tower under gravity and windload is considered. The specialist finite shell element programmeCONSHELL for the analysis of reinforced concrete shell structuresis employed. The programme includes modelling of the mostdominant nonlinear concrete and reinforcement behaviour(Multiaxial elastoplastic compreession and crushing, and tensilecracking of concrete, as well as one-dimensional elastoplasticstell behaviour). The layered element formulation permits an easyreinforcement location. The example shown illustrates a need forrealistic nonlinear analysis when a complex structure is to bedesigned.

**Keywords**: complex structure, cooling tower, reinforced concrete, nonlinear analysis, tensile cracking

**Type of paper**:*Paper in proceedings*

**Title:**Integrated analysis of complex structures

**Authors:**- Damjanić, Frano B. (8883)
- Gotovac, Blaž (14020)
- Kozulić, Vedrana (176112)

**Editors**- Duhovnik, Janez

**Proceedings title**: Zbornik 7. seminarja Računalnik v gredbenem inženirstvu

**Language**: slovenski

**Place**: Ljubljana, Slovenija

**Year**: 1994

**Pages**: from 97 to 104

**Meeting**: 7. seminar Računalnik v gradbenem inženirstvu

**Held**: from 04/15/94 to 04/15/94

**Summary**: A traditional analysis of an engineering structure is mostly based on the analysis of individual structural elements. For example, horizontal structures (slabs, shells, girders, etc.) are separately analysed and then vertical structures (columns, walls, etc.) subjected to load due to the horizontal structures are independently analysed. However, the use of this analysis system could result, in some cases, in significant loss of solution accuracy. Namely, using this system interaction effects between particular structural elements are neglected. An integrated structural analysis of a whole structure which takes into account all structural elements including their interaction could only provide more accurate and reliable results. We have developed our software SHELL6 and its applicability for the integrated structural analysis is presented in the paper. Both the shell and beam elements have six degrees of freedom ( three for displacements and three for rotations), so that the compatibility is ensured at a common node of adjacent elements. A practical example is solved in order to illustrate the SHELL6 capability. One industrial hall structure is discretised by 162 shell elements describing shall roof and 50 beam elements describing columns and girders. The structure subjected to wind and crane jack load is analysed as a whole structure. Typical results (i.e. deformations, internal forces and principal stresses) obtained with the SHELL6 code are presented in a graphical form.

**Keywords**: shell, girders, columns, integrated analysis, industrial hall.

**Type of paper**:*Paper in proceedings*

**Title:**On shell finite elements with an additional drilling degree of freedom

**Authors:**- Gotovac, Blaž (14020)
- Kozulić, Vedrana (176112)
- Damjanić, Frano B. (8883)

**Editors**- Sorić, Jurica
- Vranković, Nikola

**Proceedings title**: Zbornik radova 1. Kongresa hrvatskog društva za mehaniku

**Language**: engleski

**Place**: Zagreb

**Year**: 1994

**ISBN/ISSN**: 953-96243-0-4

**Pages**: from 15 to 22

**Meeting**: 1. Kongres hrvatskog društva za mehaniku

**Held**: from 09/14/94 to 09/17/94

**Summary**: Inclusion of an additional rotational degree of freedom to the plane stress analysis is presented. According to this formulation, an isoparametric C0 finite shell element with six degrees of freedom per node is derived. The element exhibits excellent accuracy characteristics. In combination with finite beam element, very efficient numerical model for analysis of complex structures consisting of shells, beams and columns is developed.

**Keywords**: shell elements, drilling degree of freedom, beams elements, Cosserat equilibrium equations, shear tensor.

**Type of paper**:*Paper in proceedings*

**Title:**Numerical modelling of joint of shell and column

**Authors:**- Kozulić, Vedrana (176112)
- Gotovac, Blaž (14020)
- Damjanić, Frano B. (8883)

**Editors**- Sorić, Jurica
- Vranković, Nikola

**Proceedings title**: Zbornik radova 1. Kongresa hrvatskog društva za mehaniku

**Language**: hrvatski

**Place**: Zagreb

**Year**: 1994

**ISBN/ISSN**: 953-96243-0-4

**Pages**: from 131 to 138

**Meeting**: 1. Kongres hrvatskog društva za mehaniku

**Held**: from 09/14/94 to 09/17/94

**Summary**: Numerical analysis of structures consisting of shells and beams implies specific problems of connecting various finite elements into a compatible entire. This work presents the algorithm based upon new isoparametric finite shell elements with six degrees of freedom per node and standard finite beam elements. The main problem related to the satisfying the fully compatibility of displacements and rotations in the common nodes, has been solved by formulating of the rotational degree of freedom around the normal to the mid-surface of the shell. Specially, the joint of shell and column which transfers torsional moment to the shell mid-surface is considered. The compare with analytical solution confirms the accuracy and reliability of employed numerical process.

**Keywords**: shell, column, concentrated moment, compatibility of displacements and rotations, rotational degrees of freedom.

**Type of paper**:*Paper in proceedings*

**Title:**Practical application of software for integrated analysis of complex structures

**Authors:**- Gotovac, Blaž (14020)
- Kozulić, Vedrana (176112)

**Editors**- Radić, Jure

**Proceedings title**: Zbornik radova 3. radnog sabora Graditelji u obnovi Hrvatske

**Language**: hrvatski

**Place**: Zagreb

**Year**: 1994

**ISBN/ISSN**: 953-6175-04-5

**Pages**: from 425 to 432

**Meeting**: Treći radni sabor Graditelji u obnovi Hrvatske

**Held**: from 10/13/94 to 10/15/94

**Summary**: The modern approach to analysis to complex engineering structures involves the simulation of simultaneous behaviour of all structural elements. We have developed our software SHELL6 which enables the integrated analysis of structures consisting of different structural element, i.e. plates, shells, columns, beams,etc. The applicability of this software is illustrated in the paper on some practical examples. Typical results (deformations, internal forces and principal stresses) obtained with the SHELL6 code are presented in a graphical form.

**Keywords**: integrated structure, isoparametrical finite shell element, beam finite element, six degrees of freedom, folded structure.

**Type of paper**:*Mentorship*

**Title:**Numerical analysis of structures consisting of shells and columns

**Faculty**: Građevinski fakultet Sveučilište u Splitu

**Date of defense**: 12/22/93

**Number of pages**: 128

**Author**: Kozulić mr. Vedrana

**Degree level**: M.A.

**Type of paper**:*Computer program*

**Title:**Computer program SHELL6

**Authors:**- Damjanić, Frano B. (8883)
- Gotovac, Blaž (14020)
- Kozulić, Vedrana (176112)

**Odering party**: Građevinski fakultet

**Institution depot**: Građevinski fakultet

**HW platform**: PC AT/486

**Operating system**: DOS

**Programming language**: FORTRAN 77

**Year**: 1993

**Summary**: Program for numerical analysis of space structures consisting ofisoparametric finite shell elements and linear prismatic beamelements. Different types of loading can be analysed with thisprogram: gravity, moving load, wind, inertial load, temperatureload.

**Keywords**: shell, beam, finite element

**Type of paper**:*Computer program*

**Title:**Program LINKO

**Authors:**- Gotovac, Blaž (14020)

**Odering party**: Građevinski fakultet

**Institution depot**: Građevinski fakultet

**HW platform**: PC AT/486

**Operating system**: DOS

**Programming language**: FORTRAN 77

**Year**: 1991

**Summary**: Program for numerical analysis of line structures (plane andspace truss, plane and space frame, plane grid)

**Keywords**: truss, frame, grid

**Type of paper**:*Computer program*

**Title:**Program CONTACT

**Authors:**- Gotovac, Blaž (14020)
- Kozulić, Vedrana (176112)

**Odering party**: Građevinski fakultet

**Institution depot**: Građevinski fakultet

**HW platform**: PC AT/486

**Operating system**: DOS

**Programming language**: FORTRAN 77

**Year**: 1992

**Summary**: Program for numerical analysis of plane stress and plane strainincluding nonlinear behaviour of different types of contacts.

**Keywords**: contact, plane, interaction

**Type of paper**:*Computer program*

**Title:**Structural Integrated GeoMechanical Analysis

**Authors:**- Gotovac, Blaž (14020)
- Kozulić, Vedrana (176112)

**Odering party**: Građevinski fakultet Split

**Institution depot**: Građevinski fakultet Split

**HW platform**: PC 486

**Operating system**: MS DOS

**Programming language**: Fortran 90

**Year**: 1995

**Summary**: The programme for nonlinear analysis of plane states and axisymmetric problems. It is based on the finite element method and adapted to solving of geotechnical problems in the rock mass. It enables the numerical simulation of geotechnical works by attending the changes of loadings through the build phases. The program package consists the preprocessor for generating of input data and the graphic postprocessor for presenting of results on screen, printer or plotter.

**Keywords**: geomechanical analysis, finite element method, numerical simulation, build phases.

**Other**: Priručnik za uporabu programa SIGMA, verzija 1.0, 1995.

**Type of paper**:*Survey/Study*

**Title:**Numerical analysis of carrying capacity and stability of poultice and portals of tunnel "MAČKOVAC".

**Authors:**- Gotovac, Blaž (14020)

**Ordering party**: IGH - Zagreb, PC - Split

**Institution depot**: "Hrvatske ceste"

**Year**: 1992

**Number of pages**: 130

**Language**: hrvatski

**Type of paper**:*Survey/Study*

**Title:**Numerical analysis of carrying capacity and stability of poultice and portals of tunel "MRAVINCI".

**Authors:**- Gotovac, Blaž (14020)

**Ordering party**: IGH - Zagreb, PC - Split

**Institution depot**: "Hrvatske ceste"

**Year**: 1992

**Number of pages**: 138

**Language**: hrvatski

**Type of paper**:*Survey/Study*

**Title:**Numerical analysis of carrying capacity and stability of poultice and portals of tunel "KLIS-GRLO".

**Authors:**- Gotovac, Blaž (14020)

**Ordering party**: IGH - Zagreb, PC - Split

**Institution depot**: "Hrvatske ceste"

**Year**: 1991

**Number of pages**: 47

**Language**: hrvatski

**Type of paper**:*Survey/Study*

**Title:**Numerical analysis of carrying capacity and stability of poultice and portals of tunnel "KLIS-KOSA".

**Authors:**- Gotovac, Blaž (14020)

**Ordering party**: IGH - Zagreb, PC - Split

**Institution depot**: "Hrvatske ceste"

**Year**: 1991

**Number of pages**: 54

**Language**: hrvatski

**Type of paper**:*Survey/Study*

**Title:**

**Authors:**- Gotovac, Blaž (14020)

**Ordering party**: Vodoprivreda BiH

**Institution depot**: Vodoprivreda BiH

**Year**: 1991

**Number of pages**: 96

**Language**: hrvatski

**Type of paper**:*Survey/Study*

**Title:**

**Authors:**- Gotovac, Blaž (14020)
- Kozulić, Vedrana (176112)

**Ordering party**: J.P. ELEKTROPRIVREDA H.R. HERCEG BOSNA

**Institution depot**: "CONEX"

**Year**: 1994

**Number of pages**: 75

**Language**: hrvatski

**Type of paper**:*Survey/Study*

**Title:**

**Authors:**- Gotovac, Blaž (14020)

**Ordering party**: "Slobodna Dalmacija"

**Institution depot**: "Studio R" - Split

**Year**: 1995

**Number of pages**: 173

**Language**: hrvatski

Ministry of Science and Technology |
Croatian language |
Svibor homepage |
Alphabetic list |
Sorted on project code |
Sorted on institutions |
Search | Help |

Information: svibor@znanost.hr