High strain rate properties of cycom 5920/1583 cloth glass/epoxy composites

摘要

Polymer matrix composites offer excellent properties such as high specific strength and stiffness, which make them attractive for many naval, aerospace, and automotive applications. Although they are candidate materials for many applications where high strain rate loading is probable, little is known of the material responses to shock loading for most composite materials. Because mechanical properties vary significantly with strain rate, the use of static properties in the analysis and design of structures that undergo dynamic loadings can, on one hand, lead to a very conservative overweight design or, on the other hand, can lead to designs that fail prematurely and unexpectedly.