Coupled elasto-plasticity damage constitutive models for concrete  

作　　者：Qiang XU Jian-yun CHEN Jing LI Gang XU 

机构地区：[1]State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology [2]School of Civil and Hydraulic Engineering,Dalian University of Technology [3]Plan and Design Institute of Daqing Oilfield Communication Company

出　　处：《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》2013年第4期256-267,共12页浙江大学学报（英文版）A辑（应用物理与工程）

基　　金：Project supported by the National Natural Science Foundation of China(Nos.51109029,51178081,51138001 and 51009020);the China Postdoctoral Science Foundation(No.20110491535);the State Key Development Program for Basic Research of China (No.2013CB035905)

摘　　要：The paper is to design and construct a coupled elasto-plasticity damage constitutive model for concrete.Based on the energy dissipation principle,the Hsieh-Ting-Chen four-parameter yield function is used.The model can reflect different strength characteristics of concrete in tension and compression,and reduce the limitation and lacuna of the traditional damage constitutive models for concrete.Furthermore,numerical test for concrete stress-strain relation under uniaxial tension and compression is given.Moreover,the damage process of concrete gravity dam is calculated and analyzed in seismic load.Compared with other damage constitutive models,the proposed model contains only one unknown parameter and the other parameters can be found in the Hsieh-Ting-Chen four-parameter yield function.The same damage evolution law,which is used for tension and compression,is good for determining stress-strain constitutive and damage characteristics in complex stress state.This coupled damage constitutive models can be applied in analyzing damage of concrete gravity dam and arch dam.The paper is to design and construct a coupled elasto-plasticity damage constitutive model for concrete. Based on the energy dissipation principle, the Hsieh-Ting-Chen four-parameter yield function is used. The model can reflect different strength characteristics of concrete in tension and compression, and reduce the limitation and lacuna of the traditional damage constitutive models for concrete. Furthermore, numerical test for concrete stress-strain relation under uniaxial tension and compression is given. Moreover, the damage process of concrete gravity dam is calculated and analyzed in seismic load. Compared with other damage constitutive models, the proposed model contains only one unknown parameter and the other parameters can be found in the Hsieh-Ting-Chen four-parameter yield function. The same damage evolution law, which is used for tension and compression, is good for determining stress-strain constitutive and damage characteristics in complex stress state. This coupled damage con- stitutive models can be applied in analyzing damage of concrete gravity dam and arch dam.

关 键 词：CONCRETE Damage constitutive models Hsieh-Ting-Chen four-parameter yield function Uniaxial tension Uniaxial compression Gravity dam Arch dam 

分 类 号：TV431[水利工程—水工结构工程]