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Material model for non-linear finite element analyses of large concrete structures

Conference paper (2016)

Authors

Morten Engen Multiconsult ASA, Norwegian University of Science and Technology (NTNU)
Max A.N. Hendriks Norwegian University of Science and Technology (NTNU), Applied Mechanics
Jan Arve Øverli Norwegian University of Science and Technology (NTNU)
Erik Åldstedt Multiconsult ASA
Research Group
Steel & Composite Structures
Copyright: © 2016 Morten Engen, M.A.N. Hendriks, Jan Arve Øverli, Erik Åldstedt
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Published Date

2016

Language

English

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Research Group

Steel & Composite Structures

Abstract

A fully triaxial material model for concrete was implemented in a commercial finite element code. The only required input parameter was the cylinder compressive strength. The material model was suitable for non-linear finite element analyses of large concrete structures. The importance of including a crack closure algorithm was demonstrated on a case involving sequential loading. Bayesian inference was applied to results from a series of benchmark analyses, and the results indicate that the modelling uncertainty can be represented by a log-normal variable with a mean 1.10 and a coefficient of variation of 10.9%.

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