Applying the virtual fields method to the identification of elasto-plastic constitutive parameters

被引：158
|
作者：
Grédiac, M
Pierron, F
机构：
[1] Univ Clermont Ferrand, Lab Mecan & Ingn, Clermont Ferrand, France
[2] Ecole Nat Super Arts & Metiers, Lab Mecan & Proc Fabricat, Chalons Sur Marne, France
来源：
INTERNATIONAL JOURNAL OF PLASTICITY | 2006年 / 22卷 / 04期
关键词：
inverse problem; virtual fields method; identification; heterogeneous tests;
D O I：
10.1016/j.ijplas.2005.04.007
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
This paper deals with the identification of constitutive parameters governing elasto-plastic constitutive equations. The procedure used is the virtual fields method. It consists in writing the principle of virtual work with particular virtual fields. A cost function is then deduced. Minimizing this cost function provides the unknown parameters. An important feature is the fact that no finite element analysis is required with this approach. Moreover, it is not sensitive to the distribution of the loading if suitable virtual fields are used. Some numerical examples illustrate the relevancy of the method and its sensitivity to noisy data. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码：602 / 627
页数：26
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