螺旋FRP/金属丝混杂组合结构抗冲击性能研究  

Study on Impact Resistance Characteristics of Biomimetic Spiral Composite-metal Hybrid Structure

作　　者：赵哲稷 李晓彬[1] 李智[1] 熊宇洋 陈威[1] 李营 ZHAO Zheji;LI Xiaobin;LI Zhi;XIONG Yuyang;CHEN Wei;LI Ying(School of Naval Architecture,Ocean and Energy Power Engineering,Wuhan University of Technology,Wuhan 430063,China;Institute of Adruanced Structure Technology.Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]武汉理工大学船海与能源动力工程学院,武汉430063 [2]北京理工大学先进结构技术研究院,北京100081

出　　处：《武汉理工大学学报(交通科学与工程版)》2025年第2期290-297,共8页Journal of Wuhan University of Technology(Transportation Science & Engineering)

摘　　要：文中基于仿生Bouligand结构,构造了一种分层嵌入的“十字型”网状金属丝材的螺旋复材-金属(FRP-Metal)混杂组合结构,分析其在冲击载荷下的结构损伤和吸能特性.发现加入“十字型”网状丝材的FRP-Metal复合结构能够使结构吸能均匀性大幅增加,使结构的材料利用率得到提升.在变形的最大挠度上,相比未加入丝材的复合材料层合板(FRP-B)结构,“十字型”网状丝材减小了整体结构的最大变形量,提高了结构的整体刚度.进一步,对复材-超弹性形状记忆合金、复材-轻质铝以及复材-常规钢(FRP-SMA、FRP-Al2024和FRP-Q235)进行对比分析,FRP-Al2024具有更轻质的结构及更高的刚度,其比吸能较FRP-Q235高38.9%,其最大变形量较FRP-Q235小11.95%;FRP-SMA具有更高的层间吸能均匀性,其各层吸能比率方差比FRP-Q235小47.12%.Based on the bionic Bouligand structure,a spiral composite-metal(FRP-Metal)hybrid struc-ture with layered embedded“cross”mesh wire was constructed,and its structural damage and energy absorption characteristics under impact load were analyzed.The results show that the FRP-Metal composite structure with“cross”mesh wire can greatly increase the energy absorption uniformity of the structure and improve the material utilization rate of the structure.On the maximum deflection of deformation,compared with the FRP-B structure without wires,the“cross-shaped”mesh wires re-duce the maximum deformation of the whole structure and improve the overall stiffness of the struc-ture.Furthermore,the composites-superelastic shape memory alloy,composites-lightweight alumi-num and composites-conventional steel(FRP-SMA,FRP-A12024 and FRP-Q235)are compared and analyzed.FRP-A12024 has lighter structure and higher stiffness,its specific energy absorption is 38.9%higher than that of FRP-Q235,and its maximum deformation is 11.95%smaller than that of FRP-Q235.FRP-SMA has higher energy absorption uniformity among layers,and the variance of en-ergy absorption ratio of each layer is 47.12%smaller than that of FRP-Q235.

关 键 词：金属增强复合材料 仿生结构 损伤演化 毁伤特性 

分 类 号：U668.5[交通运输工程—船舶及航道工程]