Dynamic stress intensity factors for homogeneous and non-homogeneous materials using the interaction integral method

被引：27

作者：

Wang, Zhiyong ^{[1
]}

Ma, Li ^{[2
]}

Yu, Hongjun ^{[3
]}

Wu, Linzhi ^{[2
]}

机构：

[1] Taiyuan Univ Technol, Coll Mech, Taiyuan 030024, Peoples R China

[2] Harbin Inst Technol, Ctr Composite Mat & Struct, Harbin 150001, Peoples R China

[3] Harbin Inst Technol, Inst Appl Math, Harbin 150001, Peoples R China

来源：

ENGINEERING FRACTURE MECHANICS | 2014年 / 128卷

基金：

美国国家科学基金会; 中国博士后科学基金;

关键词：

Dynamic stress intensity factors; Interaction integral; Extended finite element method; Non-homogeneous materials; FINITE-ELEMENT-METHOD; CRACK-GROWTH; COMPUTATION; SIMULATION;

D O I：

10.1016/j.engfracmech.2014.06.002

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

An interaction integral is derived for the computation of dynamic stress intensity factors for both homogeneous and non-homogeneous materials. By selecting the appropriate auxiliary fields, the derived integrand does not involve any derivatives of material properties. Moreover, it can be proved that the integrand is still valid when the integral domain contains material interface. Therefore, the application of this method is more convenient. The numerical implementation of the interaction integral is combined with the extended finite element method without tip-enriched functions. Then, various homogeneous and non-homogeneous cracked bodies under dynamic loading are employed to verify the accuracy of the proposed technique. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：8 / 21

页数：14

共 22 条

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