NUMERICAL METHOD FOR CRACK GROWTH ANALYSIS IN LINEARLY VISCOELASTIC MATERIALS.

被引：0

作者：

Russell, R.C. ^{[1
]}

Huang, N.C. ^{[1
]}

机构：

[1] Univ of Notre Dame, Notre Dame, IN,, USA, Univ of Notre Dame, Notre Dame, IN, USA

来源：

| 1988年 / 9卷 / 02期

关键词：

MATHEMATICAL TECHNIQUES - Numerical Methods - STRESSES - VISCOELASTICITY;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

This paper presents a numerical method for the analysis of crack initiation and extension in linearly viscoelastic materials undergoing Mode I plane stress deformation. Plastic deformation near the crack tip is considered by a strip-yielding model. the crack initiation and growth are taken to follow a critical energy release rate fracture criterion, and the plastic work per unit crack extension is included in the calculation of the total energy release rate. The resulting numerical method is presented in algorithmic form and two example problems are solved to demonstrate its application. The two example problems represent unstable and stable crack propagations respectively. The results obtained lend insight into the effect of creep deformation on the initiation and growth of a crack.

引用

页码：97 / 108

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