The effect of core thickness on the flexural behaviour of aluminium foam sandwich structures

被引：103
|
作者：
Styles, M. [1 ]
Compston, P. [1 ]
Kalyanasundaram, S. [1 ]
机构：
[1] Australian Natl Univ, Dept Engn, Fac Engn & Informat Technol, Canberra, ACT 0200, Australia
来源：
COMPOSITE STRUCTURES | 2007年 / 80卷 / 04期
关键词：
aluminium foam; sandwich; flexural loading; strain distribution; deformation;
D O I：
10.1016/j.compstruct.2006.07.002
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The effect of core thickness on the deformation mechanism of an aluminium foam core/thermoplastic composite facing sandwich structure under 4-point bending was investigated. Full field strain analysis and visual observations show a number of failure mechanisms between the different core thicknesses. High strain concentrations were observed in each sample thickness corresponding to the particular region of failure. The thinner samples exhibited skin wrinkling and fracture, and some core cracking and crushing while the thicker samples failed due to core indentation. Increasing the skin thickness eliminated the incidence of core indentation. Instead, significant core shear cracking was observed. (c) 2006 Elsevier Ltd. All rights reserved.
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页码：532 / 538
页数：7
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