摘要
复合材料船体结构的构件主要通过典型节点连接。论文采用有限元软件ABAQUS建立了船用复合材料T型连接结构压缩冲击损伤特性数值仿真模型,利用落锤冲击试验机开展了动态压缩冲击损伤特性试验验证,研究了冲击速度与边角材宽度对连接结构冲击损伤特性的影响。结果表明,随着冲击速度的增加,复合材料T型连接结构,将会发生下列损伤模式:(1)动力屈曲失稳、连接结构分层耦合损伤,(2)动力屈曲失稳、连接结构脱黏、基体失效耦合损伤,(3)动力屈曲失稳、连接结构脱黏、基体失效及结构断裂耦合损伤等。边角材宽度对连接结构分层损伤范围有较大的影响,宽度越大,分层损伤的范围越小。
Composite hull structural components are mainly connected through typical nodes.The finite element software ABAQUS is used to establish a numerical simulation model of impact damage characteristics of marine composite T-joint structures.Tests of dynamic impact damage are carried out with a drop weight impact machine,and simulation results of deformation form and failure mode are in good agreement with the test results.It is shown that with the increase of impact velocity,composite T-joint structure may have dynamic buckling failure with layered coupling damage added,dynamic buckling failure with bonding coupling damage and bonding matrix failure added,or dynamic buckling failure with bonding coupling damage,bonding matrix failure,and structural fracture added.Variation in the width of the corner material has a great influence on the damage range of the layer:with the increase of the width of the corner material,the damage range of the layer decreases significantly.
作者
丁莉浩
夏玮
叶帆
李应刚
刘昆
李晓彬
DING Lihao;XIA Wei;YE Fan;LI Yinggang;LIU Kun;LI Xiaobin(Key Laboratory of High Performance Ship Technology(Wuhan University of Technology),Ministry of Education,Wuhan 430063,China;School of Naval Architecture,Ocean and Energy Power Engineering,Wuhan University of Technology,Wuhan 430063,China;Marine Design and Research Institute of China,Shanghai 200011,China;School of Naval Architecture and Ocean Engineering,Jiangsu University of Science and Technology,Zhenjiang 212100,China)
出处
《中国造船》
EI
CSCD
北大核心
2024年第3期27-39,共13页
Shipbuilding of China
基金
国家自然科学基金项目(11972269)。
