厚/薄铺层混杂复合材料层合板低速冲击损伤及冲击后压缩特性研究  

Investigation on Low⁃velocity Impact Damage and Characteristics of Compression after Impact of Thick⁃/thin⁃ply Composite Laminates

作　　者：郑凯东 曹东风 胡海晓[3,4] 李瑞奇 李书欣 ZHENG Kaidong;CAO Dongfeng;HU Haixiao;LI Ruiqi;LI Shuxin(National Energy Key Laboratory for New Hydrogen-ammonia Energy Technologies,Foshan Xianhu Laboratory,Foshan 528000,China;State Key Laboratory of Materials Synthesis and Processing,Wuhan University of Technology,Wuhan 430070,China;Hubei Key Laboratory of Theory and Application of Advanced Materials Mechanics,Wuhan University of Technology,Wuhan 430070,China;Institute of Advanced Materials and Manufacturing Technology,Wuhan University of Technology,Wuhan 430070,China)

机构地区：[1]国家能源氢能及氨氢融合新能源技术重点实验室,佛山仙湖实验室,佛山528200 [2]武汉理工大学材料复合新技术国家重点实验室,武汉430070 [3]武汉理工大学新材料力学理论与应用湖北省重点实验室,武汉430070 [4]武汉理工大学先进材料制作装备与技术研究院,武汉430070

出　　处：《载人航天》2024年第4期469-477,共9页Manned Spaceflight

基　　金：先进能源科学与技术广东省实验室佛山分中心(佛山仙湖实验室)开放基金资助(No.XHT2020-002);中央高校基本科研业务费专项资金(2020Ⅲ066GX);湖北省对外科技合作项目(2013BHE008)。

摘　　要：相对于传统厚铺层碳纤维增强树脂基复合材料,薄铺层复合材料具有明显的损伤抑制效应,在诸多力学性能方面表现更为优异。基于准各项同性厚铺层层合板,采用“离散”与“聚集”2种薄层嵌入厚层的方式衍生出的2种厚/薄层混杂层合板,研究低能量冲击载荷作用下的复合材料结构的损伤程度和分布特征以及冲击后的剩余压缩性能。实验获取了冲击与准静态压缩实验过程的力学响应;超声C扫与热揭层实验揭示了3类含冲击损伤复合材料层合板的分层损伤形貌特征,量化了损伤尺寸大小。实验结果分析表明:薄层的“离散”与“聚集”2种嵌入厚层的方式,充分利用了薄铺层复合材料的损伤抑制效应,改变了复合材料结构分层损伤的中心对称分布特征与特征分层损伤沿厚度方向分布位置,改善了复合材料层合板的剩余压缩性能。Comparing with the traditional thick layer carbon fiber reinforced resin matrix composites,the thin layer composites have obvious damage inhibition effect and better mechanical properties.Two kinds of thick/thin hybrid laminates were derived by using discrete and aggregation embedment methods based on thick⁃ply laminate,which were used to study the damage degree and distribution characteristics of composite structures under low energy impact loads,as well as the residual com⁃pression properties after impact.The delamination damage morphologies of three types of composite laminates with impact damage were revealed by ultrasonic C⁃scan and thermal peeling experiments,and the damage size was quantified.The experimental results showed that the"discrete"and"ag⁃gregate"modes of thin layer embedding into thick layer made full use of the damage suppression effect of thin layer composite,the centrosymmetric distribution of layered damage and the distribu⁃tion position of characteristic layered damage along the thickness direction were changed,and the re⁃sidual compression performance of composite laminates was improved.

关 键 词：低速冲击 混杂效应 热揭层 损伤抑制 

分 类 号：V[航空宇航科学技术]