压缩载荷下碳/环氧复合材料的动力学响应行为

材料工程, 2008, (4): 15-18. doi: 10.3969/j.issn.1001-4381.2008.04.005

压缩载荷下碳/环氧复合材料的动力学响应行为

曹茂盛 ^1, , 周伟 ^2, , 雷义龙 ^3, , 荣吉利 ^4,

1.北京理工大学,材料科学与工程学院,北京,100081

2.北京理工大学,材料科学与工程学院,北京,100081

3.北京理工大学,材料科学与工程学院,北京,100081

4.北京理工大学,材料科学与工程学院,北京,100081

基金项目: 国防科技应用基础研究基金(A2220061080) 国家自然科学基金(10672020) 武器装备预研基金(5141240205BQ0154)

关键词：动态压缩 , 高应变率 , 损伤形貌

Behavior Characterization of Dynamic Mechanical Response for Carbon/Epoxy Composites Under Compressive Load

以铺层顺序为[45/0/-45/00-45/90/0]s的新型碳纤维增强改性环氧树脂复合材料为研究对象,采用分离式Hopkinson(SHPB)压杆装置为加载手段,在高速冲击载荷条件下,对复合材料层合板在厚度方向和平面内纵向的动态压缩性能进行实验研究,分别得到在四种不同应变率下的应力一应变关系;并借助SEM对复合材料断口损伤形貌进行表征.结果表明:在高应变率条件下,层合板厚度方向的动态压缩强度及失效应变明显大于平面内加载方向;基体开裂、分层及剪切断裂是复合材料在动态压缩条件下的主要损伤及断裂模式.

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材料期刊网

压缩载荷下碳/环氧复合材料的动力学响应行为

Behavior Characterization of Dynamic Mechanical Response for Carbon/Epoxy Composites Under Compressive Load

参考文献