T-stress effects in mixed mode I/II/III brittle fracture

被引：59

作者：

Ayatollahi, Majid R. ^{[1
]}

Saboori, Behnam ^{[1
]}

机构：

[1] Iran Univ Sci & Technol, Sch Mech Engn, Ctr Excellence Expt Solid Mech & Dynam, Fatigue & Fracture Res Lab, Tehran 16846, Iran

来源：

ENGINEERING FRACTURE MECHANICS | 2015年 / 144卷

关键词：

T-stress; Mixed mode II/III; Mixed mode I/III; Brittle fracture; Tangential stress; CRITERION; SPECIMEN; BEHAVIOR;

D O I：

10.1016/j.engfracmech.2015.06.070

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The generalized maximum tangential stress (GMTS) criterion proposed in the past for brittle fracture under mixed mode I/II loading is extended to mixed mode I/II/III. The theoretical predictions of the extended criterion were validated by some experimental results reported in literature but only for in-plane loading. Then, the effects of T-stress on the fracture resistance and also on the in-plane and out-of-plane fracture angles are explored in mixed modes I/III and II/III. It is shown that the results of extended criterion depend on the T-stress, the Poisson's ratio and also on whether the crack problem is plane stress or plane strain. Despite the considerable influence of T-stress on the fracture behavior in pure mode III, its effect is lower than that of pure mode II. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：32 / 45

页数：14

共 32 条

[1] Application of Cracked Triangular Specimen Subjected to Three-Point Bending for Investigating Fracture Behavior of Rock Materials [J].