NUMERICAL ANALYSIS OF GEOMETRIC AND MATERIAL NONLINEARITY OF BEAMS IN THE PLANE

The paper presents a simultaneous numerical analysis of the geometric and material nonlinearity of the beams. It describes a process of determining the bearing capacity of a stratified cross-section of a beam made of homogeneous and isotropic material in linear and nonlinear domains of material beha...

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Bibliographic Details
Published in:Advances in Civil and Architectural Engineering 2022-12, Vol.13 (25), p.32-45
Main Authors: Demirović, Besim, Osmić, Nedim, Hadžović, Rašid, Požegić, Zijad
Format: Article
Language:English
Subjects:
geometric nonlinearity
material nonlinearity
numerical analysis
Online Access:Get full text
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Summary:The paper presents a simultaneous numerical analysis of the geometric and material nonlinearity of the beams. It describes a process of determining the bearing capacity of a stratified cross-section of a beam made of homogeneous and isotropic material in linear and nonlinear domains of material behaviour. Material nonlinearity is analysed by the variation of the cross-sectional stiffness of the beam on bending EI in the stiffness matrix of the system obtained according to the first-order theory. Geometric nonlinearity is introduced into the calculation using the geometric stiffness matrix of the system. Numerical examples present an application of the procedure for solving problems of nonlinear structure analysis. The calculation results obtained in accordance with the procedure described in the paper are compared with the results of the SCIA software package.
ISSN:2975-3848
2975-3848
DOI:10.13167/2022.25.4