Dynamic response of multilayer sandwich beams with foam-filled trapezoidal corrugated and foam cores under low-velocity impact

被引：6
|
作者：
Sun, Hao [1 ,2 ,3 ,4 ]
Yuan, Hui [1 ]
Zhang, Jing [5 ]
Zhang, Jianxun [1 ,2 ,3 ,4 ]
Du, Jinlong [1 ]
Huang, Wei [1 ]
机构：
[1] Xi An Jiao Tong Univ, Sch Aerosp Engn, State Key Lab Strength & Vibrat Mech Struct, Xian 710049, Peoples R China
[2] Dalian Univ Technol, State Key Lab Struct Anal Ind Equipment, Dalian 116024, Peoples R China
[3] Guangxi Univ Sci & Technol, Guangxi Key Lab Automobile Components & Vehicle Te, Liuzhou 545006, Peoples R China
[4] Tsinghua Univ, State Key Lab New Ceram & Fine Proc Tsinghua Univ, Beijing 100084, Peoples R China
[5] Beijing Inst Astronaut Syst Engn, Beijing 100076, Peoples R China
来源：
ENGINEERING STRUCTURES | 2023年 / 286卷
关键词：
Multilayer sandwich beam; Foam -filled trapezoidal corrugated core; Low -velocity impact; Dynamic response; COLLAPSE MECHANISMS; COMPOSITE FACES; BEHAVIOR; FAILURE; PERFORMANCE; MODELS; PLATES;
D O I：
10.1016/j.engstruct.2023.116080
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The paper focuses on the dynamic response of multilayer sandwich beams with foam-filled trapezoidal corrugated and foam cores under low-velocity impact with heavy-mass using analytical and numerical methods. Based on the yield criterion for the multilayer sandwich structure, the circumscribing and inscribing loci of sandwich structure are obtained. Considering the interaction of bending and stretching, the analytical solution and "bound" solution for the dynamic response of multilayer sandwich beams with foam-filled trapezoidal corrugated and foam cores are developed. The numerical calculations are used to verify the analytical solutions, and all lie within the analytical "bound" predications. Then, the influences of impact position, foam strength and face-sheet thickness on the dynamic response of multilayer sandwich beams are discussed in detail by theoretical model. For a given deflection, the impact force decreases with impact position closer to the midspan, the impact force increases with the increase of foam strength and face-sheet thickness. The present analytical model can effectively predict the dynamic response of fully clamped multilayer sandwich beams with foam-filled trapezoidal corrugated and foam cores under low-velocity impact.
引用
收藏
页数：14
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