The effects of weld mismatch J-integrals and Q-values for semi-elliptical surface flaws

被引：18
作者：
Boothman, DP [1 ]
Lee, MMK [1 ]
Luxmoore, AR [1 ]
机构：
[1] Univ Wales Swansea, Dept Civil Engn, Swansea SA2 8PP, W Glam, Wales
来源：
ENGINEERING FRACTURE MECHANICS | 1999年 / 64卷 / 04期
基金：
英国工程与自然科学研究理事会;
关键词：
mismatch; J-integrals; Q-values; welds; cracks;
D O I：
10.1016/S0013-7944(99)00091-0
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
Three-dimensional finite element analysis of shallow semi-elliptical surface flaws in the centre of rectangular welds was undertaken, and the effects of varying weld mismatch and weld width on integrals and Q-values were investigated. An interesting relationship between weld width and the applied load at failure, as predicted from a J-Q failure locus, was observed. The practicalities of modifying the J- and Q-estimation schemes developed for homogeneous plates to include mismatch effects were investigated using a limited parametric study. (C) 1999 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：433 / 458
页数：26
相关论文
共 34 条
1234