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Aging and Fracture Behavior of Polymers

Published online by Cambridge University Press:  26 February 2011

A. Chudnovsky  and
C.P. Bosnyak
A. Chudnovsky
Affiliation:
The University of Illinois at Chicago, Chicago, II 60680
C.P. Bosnyak
Affiliation:
The Dow Chemical Company, Freeport, TX 77541
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Abstract

Significant changes in polymer materials and their subsequent mechanical performance can occur within an expected engineering service time. These changes can be further exacerbated with environmental effects such as with solvents and mechanical stresses. Examples are given of premature field failures which illustrate the inadequacy of existing understanding and design criteria. A new approach is outlined which is based on the coupling of two fundamental concepts; a geometrical representation of material morphology on various scales and thermodynamics of morphological transformation. These concepts allow one to bridge an existing understanding of aging on molecular and morphological levels with a phenomenological continuum mechanics approach.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 226: Symposium H – Mechanical Behavior of Materials and Structures in Microelectronics , 1991 , 315
Copyright
Copyright © Materials Research Society 1991

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