Browse Hierarchy NXC6021: Failure of Polymers

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This module provides the student with an understanding of the most important failure mechanisms of polymers due to cracking, stress-corrosion and creep. The mechanisms of failure are studied together with the theoretical background to fracture parameters and their use in engineering applications. The module includes: Fracture mechanics concepts of crack extension force, strain energy release rate, stresses at the crack tip, stress intensity factor, solutions for engineering problems, elastic-plastic fracture mechanics and fracture energy. The interaction of stresses at the crack tip and the environmental factors are studied and the environmental conditions that can lead to this mode of failure. The important failure modes of creep and stress relaxation are addressed with respect both materials testing and to stresses on engineering components in service.

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