Fatigue-life estimation of functionally graded materials using XFEM

被引：27
作者：
Bhattacharya, S. [1 ]
Singh, I. V. [1 ]
Mishra, B. K. [1 ]
机构：
[1] Indian Inst Technol Roorkee, Dept Mech & Ind Engn, Roorkee 247667, Uttarakhand, India
来源：
ENGINEERING WITH COMPUTERS | 2013年 / 29卷 / 04期
关键词：
Extended finite element modeling; Fatigue fracture; Functionally graded materials; SHAPE SENSITIVITY METHOD; STRESS INTENSITY FACTORS; FINITE-ELEMENT-METHOD; FRACTURE-ANALYSIS; PLANE DEFORMATION; CRACK ANALYSIS; LEVEL SETS; COATINGS; MODEL;
D O I：
10.1007/s00366-012-0261-2
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
The present work deals with the fatigue crack growth simulation of alloy/ceramic functionally graded materials (FGMs) using extended finite element method (XFEM). Various cases of FGM containing multiple inhomogeneities/discontinuities along with either a major edge or a center crack are taken for the purpose of simulation. The fatigue life of the FGM plate is calculated using Paris law of fatigue crack growth under cyclic loading. The effect of multiple inhomogeneities/discontinuities (minor cracks, holes/voids, and inclusions) on the fatigue life of cracked FGM plate is studied in detail. These simulations show that the presence of inhomogeneities/discontinuities in the domain significantly influences the fatigue life of the components.
引用
收藏
页码：427 / 448
页数：22
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