幂硬化材料平面应力裂纹稳定扩展的有限元模拟

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 1995, Vol. 16 ›› Issue (2): 120-125.

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A FINITE ELEMENT SIMULATION OF STABLE CRACK PROPAGATION IN POWER LAW HARDENING MATERIALS UNDER PLANE STRESS

Zhu Wenhao

Dept. of Mech.,Huazhong University of Science & Technology,Wuhan, 430074

Received:1993-09-08 Revised:1994-02-23 Online:1995-04-25 Published:1995-04-25

Abstract

Abstract: A detailed finite element analysis of stable crack growth in power law hardening materials is performed under mode-I plane stress condition. A nodal release procedure and a substructure method are used, combining with a very fine mesh near the crack tip. Detailed numerical results for the near-tip stress and deformation fields, plastic zone, crack opening displacement, propagation resistance, etc. are presented and comparisons are made with existing analyses.

Key words: crack propagat ion, finite element method, crack arrest

CLC Number:

Zhu Wenhao. A FINITE ELEMENT SIMULATION OF STABLE CRACK PROPAGATION IN POWER LAW HARDENING MATERIALS UNDER PLANE STRESS[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 1995, 16(2): 120-125.

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A FINITE ELEMENT SIMULATION OF STABLE CRACK PROPAGATION IN POWER LAW HARDENING MATERIALS UNDER PLANE STRESS

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