NON-LINEAR VISCOELASTIC ANALYSIS OF A UNIDIRECTIONAL COMPOSITE-MATERIAL

被引：26

作者：

SCHAFFER, BG

ADAMS, DF

机构：

[1] Department of Mechanical Engineering, University of Wyoming, Laramie, WY, 82071, United States

[2] Hughes Aircraft, Culver City, CA, United States

来源：

JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME | 1981年 / 48卷 / 04期

关键词：

Composite response - Creep-recovery test - Nonlinear visco-elastic - Thermodynamic theory - Time-dependent response - Transverse loading - Unidirectional composite material - Viscoelastic analysis;

D O I：

10.1115/1.3157746

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The single-integral nonlinear viscoelastic constitutive equations developed by Schapery from thermodynamic theory have been adapted to analyze the time-dependent response of a unidirectional composite material. This viscoelastic analysis has been combined with an existing time-independent elastoplastic micromechanics analysis, to permit the study of nonlinear time-dependent response of materials loaded beyond their elastic limit. Literature values as well as a brief series of creep-recovery tests on a typical epoxy resin were used to characterize the nonlinear viscoelastic response of the matrix constituent of a composite material. Composite response under transverse loading at various stress levels was then predicted, and the results compared with actual composite creep data. © 1981 by ASME.

引用

页码：859 / 865

页数：7

共 28 条

[1] ELASTOPLASTIC CRACK-PROPAGATION IN A TRANSVERSELY LOADED UNIDIRECTIONAL COMPOSITE [J].