Preliminary examination of the modified lower-bound meso-damage constitutive model for porous materials

Author

Yin, Yajun ; Fan, Qinshan ; Wang, Bo

Author_Institution

Dept. of Eng. Mech., Tsinghua Univ., Beijing, China

Volume

2

fYear

2000

fDate

2000

Firstpage

256

Abstract

The paper aims at the examination of the modified lower bound rigid plastic constitutive model for porous materials by comparing it with other ones. Under uniaxial stress state, the porous copper´s compressibility, ductility, strength property, deformation characteristics, stress~strain curves and damage evolution process predicted by these models are systematically contrasted with each other. The effectiveness of the scheme for modifying the lower bound model by introducing void interaction mechanism into its theoretical framework is verified

Keywords

compressibility; copper; deformation; ductility; mechanical strength; porous materials; stress-strain relations; voids (solid); Cu; compressibility; copper; deformation properties; ductility; mechanical strength; meso-damage evolution; modified lower bound rigid plastic constitutive model; porous material; stress-strain characteristics; uniaxial stress; void interaction; Capacitive sensors; Copper; Deformable models; Mechanical factors; Occupational stress; Plastics; Predictive models; Thermal stresses; Uniaxial strain; Workability;

fLanguage

English

Publisher

ieee

Conference_Titel

Thermal and Thermomechanical Phenomena in Electronic Systems, 2000. ITHERM 2000. The Seventh Intersociety Conference on

Conference_Location

Las Vegas, NV

ISSN

1089-9870

Print_ISBN

0-7803-5912-7

Type

conf

DOI

10.1109/ITHERM.2000.866200

Filename

866200