Low Temperature Ductile Matrices for Advanced Fiber Composites

摘要: Fiber composites are attractive alternatives to metals because of their high specific strength or stiffness excellent fatigue behavior. They a necessary supplement low electrical and thermal conductivities, the latter being related stiffness1. Their disadvantage arises from weak polymeric matrix results in interlaminar shear transverse strength. At temperatures majority currently used matrices brittle they do not permit relaxation residual stresses stress concentrations occur. In course cooling different contractions fiber give rise strains which influence most mechanical properties.2