CRACK-PROPAGATION IN POROUS HARDENING METALS

被引：6
|
作者：
RADI, E
BIGONI, D
机构：
[1] Instituto di Scienza delle Costruzioni-Facoltà di Ingegneria, 240136 Bologna, Viale Risorgimento
来源：
INTERNATIONAL JOURNAL OF PLASTICITY | 1994年 / 10卷 / 07期
关键词：
D O I：
10.1016/0749-6419(94)90045-0
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Steady-state and quasi-static rectilinear crack propagation is analyzed in porous elastoplastic solids obeying the Gurson yield condition and flow-law. Both plane strain and plane stress conditions are considered under Mode I and Mode II loading conditions. The asymptotic crack-tip fields are obtained with reference to the incremental small strain theory in the case of linear isotropic hardening behavior of the matrix material. The porosity of the material is assumed constant, therefore the elastoplastic constitutive operator results in being self-adjoint. Elastic unloading and plastic reloading on crack flanks are taken into account.
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页码：761 / 793
页数：33
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