考察了单向、正交和准各向同性S-2 /F46复合材料低速冲击后的剩余弯曲强度和模量,结合冲击损伤形貌比较了其冲击损伤模式及演化过程.单向复合材料的冲击损伤呈突变式发展,而正交和准各向同性复合材料则呈多阶段渐进式发展,弯曲性能衰减也呈现相应模式.只有当试样的结构完整性损失较大时弯曲性能才明显下降,其衰减的临界冲击能以单向复合材料最大,正交复合材料最小.此外,角铺层复合材料弯曲模量比强度衰减更严重.
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