On low-velocity impact response of metal foam core sandwich beam: A dual beam model

被引：26

作者：

Qin, Qinghua ^{[1
,2
]}

Xiang, Chunping ^{[1
]}

Zhang, Jianxun ^{[1
]}

Wang, Mingshi ^{[1
]}

Wang, T. J. ^{[1
]}

Poh, L. H. ^{[2
]}

机构：

[1] Xi An Jiao Tong Univ, Sch Aerosp, State Key Lab Strength & Vibrat Mech Struct, Xian 710049, Peoples R China

[2] Natl Univ Singapore, Dept Civil & Environm Engn, Singapore 117576, Singapore

来源：

COMPOSITE STRUCTURES | 2017年 / 176卷

基金：

中国博士后科学基金;

关键词：

Metal sandwich beam; Dynamic response; Low-velocity impact; Analytical model; Large deflection; COLLAPSE MODES; BEHAVIOR; PANELS; DEFORMATION; PREDICTION; DAMAGE;

D O I：

10.1016/j.compstruct.2017.06.038

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

A theoretical procedure for dynamic response of metal foam core sandwich beams struck by a heavy mass with low-velocity is developed to consider the combined local denting and global deformation. Analysis focuses on effect of local denting on global deformation and inertial effect of the structure. Large deflection effects are determined by using the membrane factor method. A set of finite element simulations is carried out to validate the model predictions. It is demonstrated that the model predictions are in good agreement with the finite element computations. The sandwich beam is strengthened with the deflection increasing. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：1039 / 1049

页数：11

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