Dynamic response of metallic lattice sandwich structures to impulsive loading

被引：82
作者：
Cui, Xiaodong [1 ]
Zhao, Longmao [2 ,3 ]
Wang, Zhihua [2 ,3 ]
Zhao, Han [4 ]
Fang, Daining [1 ,5 ]
机构：
[1] Tsinghua Univ, Dept Engn Mech, AML, Beijing 100084, Peoples R China
[2] Swinburne Univ Technol, Fac Engn & Ind Sci, Hawthorn, Vic 3122, Australia
[3] Taiyuan Univ Technol, Inst Appl Mech & Biomed Engn, Taiyuan 030024, Peoples R China
[4] Univ Paris 06, Lab Mecan & Technol LMT Cachan, ENS Cachan, CNRS,UMR8535, F-94235 Cachan, France
[5] Peking Univ, Coll Engn, LTCS, Beijing 100084, Peoples R China
来源：
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING | 2012年 / 43卷
基金：
中国国家自然科学基金;
关键词：
Lattice sandwich plate; Air blast testing; Impulsive loading; Impulsive resistant performance; WATER BLAST; THIN PLATES; PANELS; DEFORMATION; RESISTANCE; BEAMS; CORE; SUBJECT; FAILURE; MODEL;
D O I：
10.1016/j.ijimpeng.2011.11.004
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The dynamic response of metallic lattice sandwich plates under impulsive loading is studied by experimental investigation. The sandwich structures composed of two identical face sheets and tetrahedral lattice cores, were designed and fabricated through perforated metal sheet forming and welding technology. The air blast experiment of lattice sandwich structures was performed by use of a four-cable ballistic pendulum system. The deformation/failure mechanisms were investigated through experimental observation and analysis. The impulsive resistance of the tetrahedral lattice sandwich structures is quantified by the maximum permanent transverse deflection of the back face sheet as a function of transmitted impulse. The maximum transverse deflections of tetrahedral lattice sandwich plates are compared with that of hexagonal honeycomb ones with identical parent materials and core relative density. The comparison implies that the tetrahedral lattice sandwich structures possess a better impulsive resistance. (C) 2011 Elsevier Ltd. All rights reserved.
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页码：1 / 5
页数：5
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