Micromechanical modelling of particle crack tip interaction in rubber-toughened epoxies

被引：0

作者：

Chen, XH ^{[1
]}

Mai, YW ^{[1
]}

机构：

[1] Univ Sydney, Dept Mech & Mechatron Engn, CAMT, Sydney, NSW 2006, Australia

来源：

CONFERENCE PROCEEDINGS AT ANTEC '98: PLASTICS ON MY MIND, VOLS I-3: VOL I; PROCESSING, VOL II; SPECIAL AREAS, VOL III; MATERIALS | 1998年 / 44卷

关键词：

micromechanical modelling; particle crack tip interaction; rubber-toughened epoxies; 3D elastoplastic FEA;

D O I：

暂无

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The interaction between a blunting mode I plane-strain crack tip and rubber particles in rubber-toughened epoxies is studied by the particle-crack tip model using 3D elastoplastic FEA. It is shown that rubber particles act as stress concentrators to initiate matrix shear yielding but they behave differently to voids near the crack tip because of their high bulk modulus. Rubber cavitation relieves the triaxial stress plane-strain condition so that extensive plastic deformation can be developed.

引用

页码：1453 / 1457

页数：5