Failure of sandwich beams with metallic foam cores

被引：201

作者：

McCormack, TM

Miller, R

Kesler, O

Gibson, LJ

机构：

[1] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA

[2] MIT, Dept Mech Engn, Cambridge, MA 02139 USA

[3] Univ Saskatchewan, Dept Mech Engn, Saskatoon, SK S7N 5A9, Canada

来源：

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES | 2001年 / 38卷 / 28-29期

关键词：

sandwich panels; metal foams; failure; strength;

D O I：

10.1016/S0020-7683(00)00327-9

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Sandwich beams with metallic foam cores can fail by several modes: face yielding, face wrinkling, core yielding and indentation. We estimate the initial failure load, corresponding to the first deviation from linearity in the load-deflection curve as well as the peak load for each mode. Failure mode maps are constructed which illustrate the dominant failure mode for practical beam designs. The results of the analysis are compared with experiments on sandwich beams with aluminum foam cores in three-point bending. The peak loads and the failure modes are described well by the analysis. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：4901 / 4920

页数：20

共 14 条

[1]

Allen HG, 1969, Analysis and design of structural sandwich panels, V1st

[2] Compressive and tensile behaviour of aluminum foams [J].