Modelling of the elasto-viscoplastic damage behaviour of glassy polymers

被引：99
|
作者：
Zairi, F. [1 ]
Nait-Abdelaziz, M. [1 ]
Gloaguen, J. M. [2 ]
Lefebvre, J. M. [2 ]
机构：
[1] USTL Polytech Lille, CNRS, Lab Mech Lille, UMR 8107, F-59655 Villeneuve Dascq, France
[2] USTL, CNRS, Lab Struct & Proprietes Etat Solide, UMR 8008, F-59655 Villeneuve Dascq, France
来源：
INTERNATIONAL JOURNAL OF PLASTICITY | 2008年 / 24卷 / 06期
关键词：
ductile damage; cavitation; crazing; growth of voids; nonlinear viscoplasticity; rubber-modified glassy polymers;
D O I：
10.1016/j.ijplas.2007.08.001
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Constitutive equations are proposed in order to describe the elasto-viscoplastic damage behaviour of polymers. The behaviour is well accounted for by a modified Bodner-Partom model comprising hydrostatic and void evolution terms. The true stress-strain and volumetric strain behaviour of typical rubber-toughened glassy polymers (RTPMMA and HIPS) were experimentally determined at constant local true strain rate by using a video-controlled technique. Successful agreement is obtained between experimental results and the proposed model. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：945 / 965
页数：21
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