FINITE-ELEMENT MODELING OF FATIGUE CRACK SHAPES

被引：28

作者：

GILCHRIST, MD

SMITH, RA

机构：

[1] Department of Mechanical and Process Engineering, University of Sheffield, Sheffield

来源：

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES | 1991年 / 14卷 / 06期

关键词：

D O I：

10.1111/j.1460-2695.1991.tb00691.x

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This paper describes a versatile finite element technique which has been used to investigate the fatigue growth and stability of a wide range of structural defects of practical importance. The procedure automatically remeshes the three-dimensional finite element model during the stages of crack growth. Problems analysed to date include the subsurface and breakout growth of internally initiated elliptical defects, the growth of semi-elliptical surface cracks in leak-before-break situations, the development of quarter-elliptical corner defects, the interaction and coalescence of two adjacent coplanar semi-elliptical surface defects and the fatigue growth of a defect in a round bar.

引用

页码：617 / 626

页数：10

共 5 条

[1]

Smith R.A., Cooper J.F., A finite element model for the shape development of irregular planar cracks, Int. J. Press. Vess. Piping, 36, pp. 315-326, (1989)

[2]

Chipalo M.I., Gilchrist M.D., Smith R.A., A finite element technique for the investigation of the shape development of planar cracks with initially irregular profiles, Int. J. mech. Sci., 32, pp. 243-251, (1990)

[3]

Kishimoto K., Soboyejo W.O., Smith R.A., Knott J.F., A numerical investigation of the interaction and coalescence of twin coplanar semi‐elliptical fatigue cracks, Int. J. Fatigue, 11, pp. 91-96, (1989)

[4]

Soboyejo W.O., Kishimoto K., Smith R.A., Knott J.F., A study of the interaction and coalescence of two coplanar fatigue cracks in bending, Fatigue Fract. Engng Mater. Struct., 12, pp. 167-174, (1989)

[5]

Nisitani H., Chen D.H., Stress intensity factors for a semi‐elliptical surface crack in a shaft under tension, Trans. J. Soc. mech. Engrs, 50, pp. 1077-1082, (1984)

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