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《Journal of Vibration and Shock》 2015-04
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Tests for indentation and perforation of sandwich panels with aluminium foam core

LI Zhi-bin;LU Fang-yun;College of Science,National University of Defense Technology;  
Indentation and perforation behaviors of sandwich panels with composite face sheets and closed-cell aluminium foam core were investigated experimentally. Quasi-static and low-velocity impact tests were conducted by using a MTS system and a drop hammer tester,respectively. Experimental results showed that the deformation and failure of the sandwich panels are roughly confined to the area underneath the indenter and the material outside the contact area seems to be intact. Effects of some key parameters,such as,impact energy,face sheet and core thicknesses,core density,indenter nose shape,and boundary conditions on the overall energy absorption behavior of the panels were studied and compared with an energy-absorbing efficiency factor. It was showed that the energy-absorbing efficiency of the panels is sensitive to its structural parameters; increasing the upper face sheet thickness and the thickness of core or the relative mass density of core can effectively improve the energy-absorbing ability and the ability against indentation and perforation of the panels; the effects of the lower face sheet thickness on the ability against perforation of the panels is not obvious;different shapes of indenter and hammer and boundary conditions have significant effects on the responses of identation and perforation and the energy-absorbing performance of the panels.
【Fund】: 国家自然科学基金(90916026 11132012)
【CateGory Index】: TB383.4
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【Citations】
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【Co-citations】
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1 RONG Li-fan;MU Chao-min;WANG Hai-lu;WANG Chao-cheng;School of Mining and Safety Engineering,Anhui University of Science and Technology;School of Science,Anhui University of Science and Technology;;Relationship between Reflected Pressure and Loading Amount of Experimental Section in φ800 Blast Shock Tube[J];Blasting;2014-02
2 Jinxia Kang;Longmao Zhao;College of Architecture and Civil Engineering,Taiyuan University of Technology;Institute of Applied Mechanics and Biomedical Engineering,Taiyuan University of Technology;;STUDIES ON THE STRESS/FORCE ENHANCEMENT IN CELLULAR METALLIC MATERIALS[J];Chinese Journal of Solid Mechanics;2014-03
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5 WANG Shao-hua;YAN He;ZHANG Zuo-peng;DIAO Xing-zhong;Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education,Institute of Nuclear and New Energy Technology,Tsinghua University;;Analysis and Test Verification of Control Rod Buffer in HTR[J];Atomic Energy Science and Technology;2014-04
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