A rheology damage constitutive equation of rocks

WAN Ling; PENG Xiang-he; YANG Chun-he; REN Zhong-jun

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A rheology damage constitutive equation of rocks

更新时间：2026-06-25

- A rheology damage constitutive equation of rocks
- Vol. 27, Issue S1, (2006)
- 作者机构：
  
  1. 重庆大学资源及环境科学学院,重庆,400044
  2. 重庆大学西南资源开发及环境灾害控制工程教育部重点实验室,重庆,400044
  3. 中国科学院武汉岩土力学研究所,武汉,430071
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU452
- Online First：15 December 2006，
  
  Published：2006
- 稿件说明：
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WAN Ling, PENG Xiang-he, YANG Chun-he, et al. A rheology damage constitutive equation of rocks[J]. 2006, 27(S1).
DOI：

WAN Ling, PENG Xiang-he, YANG Chun-he, et al. A rheology damage constitutive equation of rocks[J]. 2006, 27(S1). DOI：

摘要

根据岩石材料的微结构机理，基于简单机械模型，通过在不可逆应变和牛顿时间所构成的空间中合理的定义广义时间、引入四阶各向异性损伤张量，建立了岩石的流变损伤本构方程。该模型能够考虑复杂应力状态下材料的响应特性，各向异性损伤及其损伤的方向特征，静水压力的影响等。发展了相应的数值分析方法，并根据泥岩三轴蠕变试验结果进行了验证。

Abstract

Based on the microstructure-mechanisms of rock materials and a simple mechanical model

a rheology damage constitutive equation is proposed by introducing generalized time defined in the space of irreversible strain and Newtonian time

and an anisotropic damage tensor of rank four. The anisotropic evolution and unilateral effect of damage as well as the effect of hydrostatic pressure can be taken into account in the proposed model. The corresponding numerical analysis is developed; and the creep

inelastic and damage behaviors of claystone are analyzed. It shows that the calculated results agree well with the experimental observation. The influence of stress level on the creep can be well described with the model.

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Related Institution

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