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Article: An irreversible thermodynamic model for semicrystalline polymers submitted to multisequence loading at large strain.
- Article from:
- Polymer Engineering and Science
- Article date:
- January 1, 2005
- Author:
CopyrightCOPYRIGHT 2005 Society of Plastics Engineers, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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INTRODUCTION
The aim of this work is to contribute to the mechanical behavior simulation of semicrystalline polymers via the distribution of nonlinear relaxation (DNLR) formalism, as developed by Cunat et al. [1-15]. This thermodynamic approach is closely related to the relaxed state concept, which is defined as the result of microstructural evolutions after a loading followed by complete stress relaxation. In other words, this relaxed state is characterized by measuring the stress level when the thermodynamic forces of non-equilibrium, or affinities, become stationary. The affinity concept was first proposed by De Donder [16, 17] (in 1920 and 1936), it was used ...
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