Simulation of Crack Propagation in Functionally Graded Materials Under Mixed-Mode and Non-Proportional Loading

被引：4

作者：

Jeong-Ho Kim

Glaucio H. Paulino

机构：

[1] University of Illinois at Urbana-Champaign,Department of Civil and Environmental Engineering

[2] Newmark Laboratory,undefined

来源：

Mechanics and Materials in Design | 2004年 / 1卷 / 1期

关键词：

functionally graded material (FGM); fracture mechanics; stress intensity factors; interaction integral; two-state integral; finite element method (FEM); automatic crack propagation;

D O I：

10.1023/B:MAMD.0000035457.78797.c5

中图分类号：

学科分类号：

摘要：

Automatic simulation of crack propagation in homogeneous and functionally graded materials is performed by means of a remeshing algorithm in conjunction with the finite element method. The crack propagation is performed under mixed-mode and non-proportional loading. Each step of crack growth simulation consists of calculation of mixed-mode stress intensity factors by means of a novel formulation of the interaction integral method, determination of crack growth direction based on a specific fracture criterion, and local automatic remeshing along the crack path. The present approach requires a user-defined crack increment at the beginning of the simulation. Crack trajectories obtained by the present numerical simulation are compared with available experimental results.

引用

页码：63 / 94

页数：31

共 83 条

[21]

Gosz M.(2003)T-stress, mixed-mode stress intensity factors, and crack initiation angles in functionally graded materials: A unified approach using the interaction integral method Computer Methods in Applied Mechanics and Engineering 192 1463-1494

[22]

Eftis J.(2003)An accurate scheme for mixed-mode fracture analysis of functionally graded materials using the interaction integral and micromechanics models International Journal for Numerical Methods in Engineering 58 1457-1497

[23]

Subramonian N.(1972)On a class of conservation laws in linearized and finite elastostatics Archive for Rational Mechanics and Analysis 44 187-211

[24]

Liebowitz H.(1994)The mixed mode crack problem in a nonhomogeneous elastic medium Engineering Fracture Mechanics 47 533-545

[25]

Eischen J.W.(2000)Experimental investigation of the quasi-static fracture of functionally graded materials International Journal of Solids and Structures 37 3715-3732

[26]

Erdogan F.(1995)Residual/thermal stresses in FGM and laminated thermal barrier coatings International Journal of Fracture 69 145-165

[27]

Erdogan F.(1994)Structure and properties of functionally gradient aluminium alloy 2124/SiC composites Materials Science and Technology 10 659-664

[28]

Sih G.C.(2002)R-curve behavior in alumina-zirconia composites with repeating graded layers Engineering Fracture Mechanics 69 1647-1665

[29]

Galvez J.(1999)A methodology for adaptive finite element analysis: towards an integrated computational environment Computational Mechanics 23 361-388

[30]

Elices M.(2003)Mesh-free analysis of cracks in isotropic functionally graded materials Engineering Fracture Mechanics 70 1-27

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