Low-velocity impact of rectangular foam-filled fiber metal laminate tubes  

作　　者：Jianxun ZHANG Haoyuan GUO 

机构地区：[1]State Key Laboratory for Strength and Vibration of Mechanical Structures,School of Aerospace Engineering,Xi’an Jiaotong University,Xi’an 710049,China [2]Jiangsu Key Laboratory of Engineering Mechanics,Southeast University,Nanjing 211189,China

出　　处：《Applied Mathematics and Mechanics(English Edition)》2021年第12期1733-1742,共10页应用数学和力学（英文版）

基　　金：the National Natural Science Foundation of China(Nos.11872291 and11972281);the Jiangsu Key Laboratory of Engineering Mechanics,Southeast University;the Fundamental Research Funds for the Central Universities(No.LEM21B01);the Key Laboratory of Impact and Safety Engineering(Ningbo University),Ministry of Education(No.cj202002);the Natural Science Basic Research Plan in Shaanxi Province of China(No.2020JM-034)。

摘　　要：Through theoretical analysis and finite element simulation,the low-velocity impact of rectangular foam-filled fiber metal laminate(FML)tubes is studied in this paper.According to the rigid-plastic material approximation with modifications,simple analytical solutions are obtained for the dynamic response of rectangular foam-filled FML tubes.The numerical calculations for low-velocity impact of rectangular foam-filled FML tubes are conducted.The accuracy of analytical solutions and numerical results is verified by each other.Finally,the effects of the metal volume fraction of FMLs,the number of the metal layers in FMLs,and the foam strength on the dynamic response of foam-filled tubes are discussed through the analytical model in details.It is shown that the force increases with the increase in the metal volume fraction in FMLs,the number of the metal layers in FML,and the foam strength for the given deflection.

关 键 词：fiber metal laminate(FML)tube metal foam low-velocity impact energy absorption 

分 类 号：O341[理学—固体力学]