XFEM simulation of cracks, holes and inclusions in functionally graded materials

被引：58
|
作者：
Singh, I. V. [1 ]
Mishra, B. K. [1 ]
Bhattacharya, S. [1 ]
机构：
[1] Indian Inst Technol Roorkee, Dept Mech & Ind Engn, Roorkee 247667, Uttar Pradesh, India
来源：
INTERNATIONAL JOURNAL OF MECHANICS AND MATERIALS IN DESIGN | 2011年 / 7卷 / 03期
关键词：
FGM; Cracks; Holes; Inclusions; XFEM; SHAPE SENSITIVITY METHOD; FINITE-ELEMENT; FRACTURE-ANALYSIS; MAIN CRACK; DYNAMIC INTERACTION; GENERAL-SOLUTION; MICROCRACK; TIP;
D O I：
10.1007/s10999-011-9159-1
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The present work aims at the numerical simulation of inhomogeneities/discontinuities (cracks, holes and inclusions) in functionally graded materials (FGMs) using extended finite element method (XFEM). A FGM with unidirectional gradation in material properties is modeled under plane strain condition. The domain contains a major crack either at the center or at the edge of the domain along with multiple minor discontinuities/flaws such as minor cracks and/or voids/inclusions distributed all over the domain. The effect of the variation in stress intensity factor (SIF) of the major crack due to the presence of the minor cracks and voids/inclusions is studied in detail. The simulations show that the presence of minor discontinuities significantly affects the values of SIFs.
引用
收藏
页码：199 / 218
页数：20
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