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

页码：945 / 965

页数：21

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