Thermoinelasticity of Damaged Elastomers by Self-consistent Method
Abstract
This study deals with an elastomer body having a random 3D distribution of two types of inclusions: spheroidal mutually parallel voids and differently oriented reinforcing parallel elastomeric stiff spheroidal short fibers. By the effective field approach, the effective stiffness four-tensor as well as the effective thermal expansion two-tensor are formulated and found numerically. Simultaneous and sequential embeddings of inclusions are compared. Damage evolution is described by a modified Vakulenko's approach, the endochronic thermodynamics. A brief account of the problem of effective elastic and thermal symmetry is taken. The results of the theory are applied to creep of an elastomeric PU-based composite caused by triangular history of compressive stress.
Keywords:
anisotropy by damage / Eshelbian implants / Vakulenko's thermodynamic timeSource:
International Journal of Damage Mechanics, 2008, 17, 6, 539-565Funding / projects:
- Mehanika materijala sa mikrostrukturom (RS-MESTD-MPN2006-2010-144038)
DOI: 10.1177/1056789507088338
ISSN: 1056-7895