Analysis of a new specimen for mixed mode fracture tests on brittle materials

被引:166
作者
Ayatollahi, M. R. [1 ]
Aliha, M. R. M. [1 ]
机构
[1] Iran Univ Sci & Technol, Dept Mech Engn, Fatigue & Fracture Lab, Tehran 16846, Iran
关键词
Mixed mode loading; Test specimen; Brittle fracture; Finite element analysis; DISC-TYPE SPECIMENS; T-STRESS; II FRACTURE; TOUGHNESS; CERAMICS; MARBLE; ROCK; PMMA;
D O I
10.1016/j.engfracmech.2009.02.016
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
Numerical and experimental studies were performed on a new fracture test configuration called the diagonally loaded square plate (DLSP) specimen. The mode I and mode II stress intensity factors were computed for different crack lengths and crack orientation angles using finite element analysis. The numerical results show that the DLSP specimen is able to provide pure mode I, pure mode II and any mixed mode loading conditions in between. Fracture experiments were also conducted on Plexiglas using the DLSP specimen. It is shown that the results obtained from the fracture tests are consistent very well with mixed mode fracture theories. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1563 / 1573
页数:11
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