No abstract

Carbon fiber reinfbrced epoxy polymers ( CFRP ) have been applied as light stru〔 加 ral materials with high strength ． To reduce the cost ofCFRP ， the sandwich structural composite polymers ofABS and PC ［ ( CFRPIABS ！ CFRP ) and ( CFRPIPCICFRP ) ］ have been proposed and successfU ］ ly developed ． All Charpy impact vaIues ( a ． c) of ( CFR ． P！ PCICFRP)are apparent ｝ y higher than those ofCFRPIABSICFRP bef ( ) re and after EB −imadiation ． Homogeneous EB − irradiation With 100 keV class and smalI dose ofO ． 22 and O ． 44 MGy perfectly improved the a ． 。 ofboth CFRPIABSICFRP and CFRPIPC！CFRP composites ， respeCtively ．