Simplified Composite Micromechanics Equations for Strength, Fracture Toughness and Environmental Effects

摘要

A unified set of composite micromechanics equations of simple form is summarized and described. This unified set includes composite micromechanics equations for predicting; (1) ply in plane uniaxial strengths, (2) through the thickness strength, (3) in plane fracture toughness, (4) in plane impact resistance, and (5) through the thickness impact resistance. Equations are also included for predicting the hygrothermal effects on strength, fracture toughness and impact resistance. Several numerical examples are worked out. The numerical examples are selected to demonstrate the interrelationships of the various constituent properties in composite strength and strength related behavior, to make comparisons with available experimental data and to provide insight into composite strength behavior.