Crack modeling in FE analysis of circular tubular joints

被引：53
作者：
Cao, JJ
Yang, GJ
Packer, JA
Burdekin, FM
机构：
[1] Univ Toronto, Dept Civil Engn, Toronto, ON M5S 1A4, Canada
[2] Babcock & Wilcox Canada, Nucl Engn, Cambridge, ON N1R 5V3, Canada
[3] Univ Manchester, Inst Sci & Technol, Dept Civil & Struct Engn, Manchester M60 1QD, Lancs, England
来源：
ENGINEERING FRACTURE MECHANICS | 1998年 / 61卷 / 5-6期
基金：
加拿大自然科学与工程研究理事会;
关键词：
cracked tubular joints; finite element analysis; mesh generation; crack modeling; crack growth modeling;
D O I：
10.1016/S0013-7944(98)00091-5
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
By mapping circles in two-dimensional planes to three-dimensional intersection curves between tubular members, a complicated three-dimensional mesh generating procedure for tubular joints is changed to a procedure similar to a two-dimensional case. More detailed modeling of welds and cracks can be included to analyze the fracture behavior of cracked tubular joints. Different types of crack tip models are discussed and a four-tip crack model is introduced to model crack propagation. These crack models can be applied to both through-thickness cracks and surface cracks. A procedure for transforming crack elements around a plane curve into crack elements for a doubly curved semielliptical surface crack around an intersection is also introduced. High-quality meshes can be obtained. (C) 1998 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：537 / 553
页数：17
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