Evaluation of T-stress in stationary and propagating adiabatic cracks in FGM subjected to thermo-mechanical loading

被引：13

作者：

Bayesteh, Hamid ^{[1
]}

Khazal, Haider ^{[2
]}

Mohammadi, Soheil ^{[3
]}

机构：

[1] Shahid Beheshti Univ, Fac Civil Water & Environm Engn, Tehran, Iran

[2] Basrah Univ, Coll Engn, Mech Dept, Basrah, Iraq

[3] Univ Tehran, Fac Engn, Sch Civil Engn, High Performance Comp Lab, Tehran, Iran

来源：

MECHANICS OF ADVANCED MATERIALS AND STRUCTURES | 2023年 / 30卷 / 11期

关键词：

T-stress; adiabatic crack; extended finite element method (XFEM); FGM; interaction integral; crack propagation; FUNCTIONALLY GRADED MATERIALS; FINITE-ELEMENT-METHOD; THERMAL FRACTURE PARAMETERS; ENERGY INTEGRAL METHOD; NONHOMOGENEOUS MATERIALS; EDGE CRACK; THERMOELASTIC FRACTURE; BRITTLE-FRACTURE; MULTIPLE CRACKS; COMPUTATION;

D O I：

10.1080/15376494.2022.2053905

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The aim of this paper is to study the T-stress and its effect on crack propagation in FGM materials with adiabatic cracks subjected to thermo-mechanical loading based on the J-integral formulation and the extended finite element method (XFEM). Path-independent J-integral responses of T-stress for adiabatic cracks and the effects of incompatible terms for FGMs are discussed. Having examined the T-stress parameter, the effect of fracture characteristic/process length on crack propagation angle in adiabatic cracks is studied. The results show that the initial crack propagation angle deviates from the standard propagation angle by increasing the size of the fracture process zone.

引用

页码：2284 / 2303

页数：20

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