Study on coupled thermal-mechanical-damage model in rock failure process

LI Lian-chong; YANG Tian-hong; TANG Chun-an; HUANG Xiao-lan; LI Xi-bin

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Study on coupled thermal-mechanical-damage model in rock failure process

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- Study on coupled thermal-mechanical-damage model in rock failure process
- Vol. 27, Issue 10期　刊出日, (2006)
- 作者机构：
  
  1. 中国科学院岩土力学重点实验室,武汉,430071
  2. 东北大学岩石破裂与失稳研究中心,沈阳,110006
  3. 中南大学资源与安全工程学院,长沙,410083
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU452
- Online First：29 November 2013，
  
  Published：2006
- 稿件说明：
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LI Lian-chong, YANG Tian-hong, TANG Chun-an, et al. Study on coupled thermal-mechanical-damage model in rock failure process[J]. 2006, 27(10期　刊出日).
DOI：

LI Lian-chong, YANG Tian-hong, TANG Chun-an, et al. Study on coupled thermal-mechanical-damage model in rock failure process[J]. 2006, 27(10期　刊出日). DOI：

摘要

从岩石的细观结构层次出发，应用损伤力学和热弹性理论，对热力耦合作用下岩石破裂过程中热-应力-损伤相互作用关系进行了分析。初步建立了细观热-应力-损伤（TMD model，thermal-mechanical-damage）耦合数值模型，并在岩石破裂过程分析系统RFPA2D中加实现。运用该数值模型计算模拟均匀与非均匀材料试样在热力耦合作用下的应力分布及破坏形态，通过与理论及试验结果对比，证明了该数值模型的合理性和有效性。

Abstract

Based on the heterogeneous characteristics of rock at mesoscopic level

the thermal-stress-damage coupled action during the failure process of rock subjected to thermal stress is described with elastic damage mechanics and thermal-elastic theory. A mesoscopic thermal-mechanical-damage coupling model

implemented in rock failure process system

RFPA2D

is proposed. The RFPA2D is used to simulate the stress distribution and failure patterns in homogeneous and heterogeneous specimen subjected to thermal loading. The numerical results coincide well with the corresponding mathematic resolution and experimental results; so it is proved that the proposed model as well as the numerical system (RFPA2D) are reasonable and effective in investigating the failure of heterogeneous materials under thermal stress.

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Related Author

LI Lian-chong1

YANG Tian-hong1

TANG Chun-an2

WANG Shi-min

ZHU He-hua

FENG Xia-ting

Related Institution

School of Resources and Safety Engineering, Central South University

Department of Geotechnical Engineering, Tongji University

Key Lab of Rock and Soil Mechanics, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences

Department of Geotechnical Engineering, Tongji University

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