首页|Parameter calibration of the tensile-shear interactive damage constitutive model for sandstone failure

Parameter calibration of the tensile-shear interactive damage constitutive model for sandstone failure

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The tensile-shear interactive damage(TSID)model is a novel and powerful constitutive model for rock-like materials.This study proposes a methodology to calibrate the TSID model parameters to simulate sandstone.The basic parameters of sandstone are determined through a series of static and dynamic tests,including uniaxial compression,Brazilian disc,triaxial compression under varying confining pressures,hydrostatic compression,and dynamic compression and tensile tests with a split Hopkinson pressure bar.Based on the sandstone test results from this study and previous research,a step-by-step procedure for parameter calibration is outlined,which accounts for the categories of the strength surface,equation of state(EOS),strain rate effect,and damage.The calibrated parameters are verified through numerical tests that correspond to the experimental loading conditions.Consistency between numerical results and experimental data indicates the precision and reliability of the calibrated parameters.The methodology presented in this study is scientifically sound,straightforward,and essential for improving the TSID model.Furthermore,it has the potential to contribute to other rock constitutive models,particularly new user-defined models.

Damage constitutive modelParameter calibrationRock modelingSandstoneDynamic impact loadTensile-shear interactive damage(TSID)model

Yun Shu、Zheming Zhu、Meng Wang、Weiting Gao、Fei Wang、Duanying Wan、Yuntao Wang

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MOE Key Laboratory of Deep Earth Science and Engineering,College of Architecture and Environment,Sichuan University,Chengdu,610065,China

Failure Mechanics and Engineering Disaster Prevention,Key Laboratory of Sichuan Province,Sichuan University,Chengdu,610065,China

Tianfu Engineering-oriented Numerical Simulation & Software Innovation Center,Chengdu,620107,China

National Natural Science Foundation of ChinaNational Key ProjectMajor Research and Development Project of Metallurgical Corporation of China Ltd.in the Non-Steel Field

12272247GJXM925792021-5

2024

10.1016/j.jrmge.2023.08.021

岩石力学与岩土工程学报(英文版)
中国科学院武汉岩土力学所中国岩石力学与工程学会武汉大学

岩石力学与岩土工程学报(英文版)

CSTPCD
影响因子：0.404
ISSN：1674-7755
年,卷(期)：2024.16(4)
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