The out-of-plane compressive behavior of metallic honeycombs

被引:207
作者
Côté, F
Deshpande, VS
Fleck, NA
Evans, AG
机构
[1] Univ Cambridge, Dept Engn, Cambridge CB2 1PZ, England
[2] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA
来源
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2004年 / 380卷 / 1-2期
关键词
honeycombs; plastic buckling; energy absorption; sandwich panels;
D O I
10.1016/j.msea.2004.03.051
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Stainless steel square-honeycombs have been manufactured by slotting together steel sheets and then brazing the assembly. Their out-of-plane compressive response has been measured as a function of the relative density, the ratio of specimen height to cell size, and the degree of constraint associated with bonding of the honeycomb to face-sheets. It has been found that, for the practical range of relative densities (less than 20%), the peak strength is relatively insensitive to both the ratio of the specimen height to cell size and to the presence or absence of bonding to face-sheets. An analytical model, derived from existing models for the buckling of shells, for elastic and plastic buckling of the square-honeycombs is shown to be in good agreement with the experimental measurements. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:272 / 280
页数:9
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