Inverse identification of the material parameters ofa nonlinear concrete constitutive model based onthe triaxial compression strength testing

Frattura ed Integrità Strutturale

Petr Král¹  Jiří Kala¹  Petr Hradil¹ 

[1] Brno University of Technology, Faculty of Civil Engineering, Veveří 331/95, 602 00 Brno, Czech Republic;

关键词: Inverse analysis;    Optimization;    Objective function;    Numerical simulation;    Nonlinear concrete material model;   

DOI  :  10.3221/IGF-ESIS.39.05

来源: DOAJ

【 摘 要 】

The aim of this paper is to perform the inverse identification of the material parameters of a nonlinear constitutive model intended for the modeling of concrete which is known as the Karagozian & Case Concrete model. At present, inverse analysis is frequently used because it allows us to find the optimum parameter values of nonlinear material models. When applying such parameters, the resulting response of the structure obtained from a computer simulation is very similar to the real response of the structure based on the related experimental measurement. This condition then undoubtedly constitutes one of the progressive steps to refine the current numerical approaches. For the purposes of the inverse analysis performed in this paper the experimental data was obtained from the triaxial compression strength tests carried out on the concrete cylinders.

【 授权许可】

Unknown