A thermo-mechanical coupled elastoplastic damage model for Boom clay

GONG Zhe; CHEN Wei-zhong; YU Hong-dan; MA Yong-shang; TIAN Hong-ming; LI Xiang-ling

doi:10.16285/j.rsm.2016.09.001

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A thermo-mechanical coupled elastoplastic damage model for Boom clay

更新时间：2026-06-25

- A thermo-mechanical coupled elastoplastic damage model for Boom clay
- Vol. 37, Issue 9, Pages: 2433-2442(2016)
- 作者机构：
  
  1. 中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室,湖北,武汉,430071
  2. 武汉市政工程设计研究院有限责任公司,湖北,武汉,430023
  3. 山东大学岩土与结构工程研究中心,山东,济南,250061
  4. 比利时核研究中心，比利时摩尔
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2016.09.001
  CLC： TU443
- Online First：09 June 2018，
  
  Published：2016
- 稿件说明：
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GONG Zhe, CHEN Wei-zhong, YU Hong-dan, et al. A thermo-mechanical coupled elastoplastic damage model for Boom clay[J]. 2016, 37(9): 2433-2442.
DOI：

GONG Zhe, CHEN Wei-zhong, YU Hong-dan, et al. A thermo-mechanical coupled elastoplastic damage model for Boom clay[J]. 2016, 37(9): 2433-2442. DOI： 10.16285/j.rsm.2016.09.001.

摘要

黏土的热-力耦合本构模型研究在许多工程领域，尤其是核废料地下处置方面有着十分重要的工程意义。根据Boom 黏土的在不同温度下的三轴与固结试验的结果，综合考虑了温度对黏土的强度与弹性模量的影响，在Drucker-Prager（简称D-P）帽盖模型的基础上，引入了硬化方程和热损伤、力学损伤的演化方程，建立了适用于黏土的热-力耦合弹塑性损伤本构模型。将模型在ABAQUS中进行了二次开发，根据试验结果反演得到了Boom黏土的模型参数。利用所建立的本构模型，对比利时HADES试验室中的ATLAS III 现场试验进行了数值仿真，计算结果表明，模型的计算结果与现场实测的结果能较好地吻合，证明了模型的合理性。

Abstract

Study of the coupled thermo-mechanical constitutive model of clays is an important issue in several specific fields

especially in the analysis of nuclear waste isolation. Based on the results of undrained triaxial tests on Boom clay at different temperatures

a coupled thermo-mechanical elastoplastic damage model is established. The yield surface is based on that of the Drucker-Prager cap model. A hardening law and a thermal/mechanical damage evolution equation are presented. The developed model is implemented into ABAQUS finite element code through subroutine USDFLD. Model parameters of Boom clay are then calibrated from experimental results by back analysis. Three dimensional coupled THM modeling of ATLAS III in-situ heating tests in HADES at the HADES underground research facility is performed by the proposed constitutive model. The numerical results are in agreement with in situ measurements

demonstrating that the model can reasonably depict the main features of thermo-mechanical behaviors of Boom clay.

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