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材料工程  2008 

S-2/F46复合材料低速冲击损伤及剩余弯曲性能

, PP. 29-32

Keywords: 复合材料,铺层结构,冲击,损伤,弯曲性能

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Abstract:

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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