Three-dimensional stochastic quasi-static fatigue crack growth simulations using coupled FE-EFG approach

被引：29

作者：

Pathak, Himanshu ^{[1
]}

Singh, Akhilendra ^{[2
]}

Singh, Indra Vir ^{[3
]}

Brahmankar, M. ^{[4
]}

机构：

[1] Shiv Nadar Univ, Dept Mech Engn, Dadri, UP, India

[2] IIT Patna, Dept Mech Engn, Patna, Bihar, India

[3] IIT Roorkee, Dept Mech & Ind Engn, Roorkee, Uttar Pradesh, India

[4] Eaton Technol Pvt Ltd, Pune, Maharashtra, India

来源：

COMPUTERS & STRUCTURES | 2015年 / 160卷

关键词：

Three-dimensional cracks; Coupled FE-EFG approach; Fatigue crack growth; Stochastic analysis; POINT INTERPOLATION METHOD; EXTENDED FINITE-ELEMENT; FREE GALERKIN METHODS; MESHFREE THIN SHELL; LEVEL SETS; MESHLESS METHODS; FRACTURE-MECHANICS; PART II; ENRICHMENT; PROPAGATION;

D O I：

10.1016/j.compstruc.2015.08.002

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

A coupled finite element (FE) and element free Galerkin (EFG) approach is used to simulate 3-D stochastic quasi-static fatigue crack growth problems. In this approach, a region near the crack is modelled by EFG, and rest is modelled by FE. A ramp function is utilised to model the transition between FE and EFG domains. Crack growth is modelled by joining the crack increments at the ends through cubic spline segments to obtain a modified crack front. The effect of load and Paris constant is studied on the fatigue life. The probability of failure is obtained using Weibull probability distribution function. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：1 / 19

页数：19

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