DUCTILE-TO-BRITTLE TRANSITION OF PLASTIC MATERIALS

摘要

The goal of a failure analysis, regardless of the material, is to identify the mode and cause of the failure. The assignment of the failure mode, such as fatigue, overload, or environmental stress cracking, is often straightforward through standard fractographic methods. However, the determination of the cause of the failure is often less apparent, particularly with a plastic component. This article discusses the failure modes of thermoplastic resins. Many factors influence a ductile-to-brittle transition within plastic materials, as shown in the table.