A DYNAMIC ELASTIC-PLASTIC MICROPLANE CONSTITUTIVE MODEL FOR CONCRETE

被引：0

作者：

Wang, Jun-Jie ^{[1
]}

Jia, Ming-Xiao ^{[1
]}

Wei, Cheng ^{[1
]}

机构：

[1] Tongji Univ, Dept Bridge Engn, Shanghai 200092, Peoples R China

来源：

PROCEEDINGS OF THE ELEVENTH INTERNATIONAL SYMPOSIUM ON STRUCTURAL ENGINEERING, VOL I AND II | 2010年

关键词：

Constitutive model; Concrete; Microplane; Elastic-plastic; Strain-rate; STATIC CONSTRAINTS; ANELASTICITY; FRACTURE; M5;

D O I：

暂无

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A dynamic elastic-plastic microplane constitutive model for concrete based on M2 which is proposed by B.P. Bazant etc., is presented in this paper. The state of each microplane is characterized by normal deviatoric and volumetric strains and shear strain. The strain-stress relations for deviatoric and shear component is described as elastic-plastic model. A new concept: failure strain has been introduced. The stress shall be zero after the microplane stress reaches failure stain level. It is suggested to describe the strain rate effects in the macro stress-strain relation by adjusting the elastic modulus and yield strain in the all stress-strain relations on the microplane. Finally 3 calculation examples have been adopted to verify the rationality and correctness of the proposed module.

引用

页码：1170 / 1176

页数：7

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