ON PREDICTING THE DYNAMIC FAILURE IN COMPOSITE MATERIALS UNDER COMPRESSIVE AND TENSILE LOADS

摘要

Simple polynomial equations are presented for the ultimate strength and the modulus of elasticity as a function of strain rate for various unidirectional and quasi-isotropic composite materials used by government and industrial organizations. Included are several glass, graphite and aramid fiber composites. These are in various thermoset and thermoplastic polymeric matrices. Also included are stitched composites as well as one silicon carbide aluminum metal matrix composite. In addition, tensile properties are modeled for two woven composite materials. Through these equations, dynamic material properties may be used easily in the design and analysis of structures employing these materials rather than using the usual static properties. In all, the dynamic properties of fourteen different composite materials are characterized.