TOWARD A NEW PHENOMENOLOGICAL FLOW RULE FOR ORIENTATIONALLY HARDENING GLASSY-POLYMERS

被引：13

作者：

HARREN, SV

机构：

[1] Department of Civil and Materials Engineering, The University of Illinois at Chicago, Chicago, IL 60607, 842 West Taylor Street

来源：

JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS | 1995年 / 43卷 / 07期

关键词：

D O I：

10.1016/0022-5096(95)00025-E

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new yield surface is proposed herein, and the behavior of its associated flow rule is explored. This anisotropic dow rule exhibits solutions which follow fairly well the orientational hardening behavior of glassy polymers. Specifically, solutions obeying the flow rule are calculated for various orthotropic loading histories, and comparisons are made to experimental data for polycarbonate. While these solutions have been restricted to rate independent plasticity in this initial study, the comparisons to experiment are encouraging. Additionally, the framework given herein provides a rational means for describing phenomenologically deformation induced elastic stiffening and deformation induced elastic anisotropy in these materials.

引用

页码：1151 / 1173

页数：23

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