A Statistical Constitutive Model of Continuous Damage for Fragile Solid Material

被引：1

作者：

Liao, Hualin ^{[1
]}

机构：

[1] China Univ Petr East China, Sch Petr Engn, Qingdao, Shandong, Peoples R China

来源：

ADVANCED MATERIALS AND PROCESSES II, PTS 1-3 | 2012年 / 557-559卷

关键词：

Material damage; Weibull distribution; Constitutive model; Triaxis test;

D O I：

10.4028/www.scientific.net/AMR.557-559.2217

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Based on the probability distribution theory of rock micro-unit strength and taking the Mohr-Coulomb damage criterion as the distribution variable, the theoretical equations for the evolution of damage variables and the statistical constitutive model of rock damage in triaxis test were established. The arbitrary triaxis experimental data were used to calculate the parameters in the model by using curve fitting method and extreme value method. The calculated results of the model agree well with the experimental data. This constructive model can reflect effectively the deformation characteristics of rocks under loads and the constructive relation between elastic strain and stress of rock damage.

引用

页码：2217 / 2220

页数：4