Study on Constitutive Relation and Permeable Coefficient Tensor of Rocks under Tensile Stress Loading with Micromechanics

Wei Llide; Chen Congxin; Yang Chunhe

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Study on Constitutive Relation and Permeable Coefficient Tensor of Rocks under Tensile Stress Loading with Micromechanics

机译：Study on Constitutive Relation and Permeable Coefficient Tensor of Rocks under Tensile Stress Loading with Micromechanics

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摘要

In the present paper, a micromechanical based damage model and corresponding permeable coefficient tensor are developed for rocks under tensile stress and hydraulic pressure loading based on the concept of the domain of microcrack growth (DMG) . After choosing an appropriate fracture criterion for microcracks, we obtain the equations from which the DMG under a monotonically increasing proportional plane stress and an invariable hydraulic pressure loading is obtained. Then the overall effective stress-strain relations and the permeable coefficient tensor of damaged rocks are calculated. The theory is verified by test.

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来源
《Key engineering materials》 |2006年第2期|899-902|共4页
作者
Wei Llide; Chen Congxin; Yang Chunhe;
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作者单位

Institute of Rock and Soil Mechanics, The Chines Academy of Sciences, Wuhan 430071, China;

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原文格式 PDF
正文语种英语
中图分类工程基础科学;
关键词
rock; microcrack; constitutive relation; permeable coefficient tensor;

Study on Constitutive Relation and Permeable Coefficient Tensor of Rocks under Tensile Stress Loading with Micromechanics

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