DISSIPATION-BASED CONSISTENT RATE-DEPENDENT MODEL FOR CONCRETE

作     者：Fei Leng Gao Lin 

作者机构：Earthquake Engineering Research Division Dalian University of Technology Dalian 116085 China College of Civil and Transportation Engineering Hohai University Nanjing 210098 China 

出 版 物：《Acta Mechanica Solida Sinica》 (固体力学学报（英文版）)

年 卷 期：2010年第23卷第2期

页      面：147-155页

核心收录：

学科分类：07[理学] 08[工学] 081402[工学-结构工程] 081304[工学-建筑技术科学] 0813[工学-建筑学] 0814[工学-土木工程] 0701[理学-数学] 070101[理学-基础数学] 

基　　金：supported by the National Natural Science Foundation of China (No.90510018) 

主　　题：constitutive model viscoplasticity consistency model energy dissipation rate dependency concrete backward Euler scheme 

摘      要：An energy-dissipation based viscoplastic consistency model is presented to describe the performance of concrete under dynamic loading. The development of plasticity is started with the thermodynamic hypotheses in order that the model may have a sound theoretical background. Independent hardening and softening and the rate dependence of concrete are described separately for tension and compression. A modified implicit backward Euler integration scheme is adopted for the numerical computation. Static and dynamic behavior of the material is illustrated with certain numerical examples at material point level and structural level, and compared with existing experimental data. Results validate the effectiveness of the model.