Failure Modes and Influence of the Quasi-static Deformation Rate on the Mechanical Behavior of Sandwich Panels with Aluminum Foam Cores

被引:33
作者
Duarte, Isabel [1 ]
Teixeira-Dias, F. [1 ]
Graca, Ana [1 ]
Ferreira, Antonio J. M. [2 ]
机构
[1] Univ Aveiro, Dept Engn Mecan, P-3830193 Aveiro, Portugal
[2] Univ Porto, Fac Engn, P-4100 Oporto, Portugal
关键词
Aluminum alloy foams; sandwich panels; 3-point bending; powder metallurgy; BEAMS; COLLAPSE;
D O I
10.1080/15376494.2010.488563
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The main purpose of this work is to study the bending behavior and deformation mechanisms of sandwich panels with AlSi7-alloy foam cores obtained by the powder metallurgy method. For this purpose, quasi-static three-point bending tests were performed on samples of AlSi7-alloy foam sandwich panels at different cross-head displacement rates: 1, 10, 20, 40 and 80 [mm/min]. Load-deflection values were registered during the bending test and further transformed into bending moment-rotation data. Obtained results show that different failure collapse modes can be obtained for samples with identical nominal dimensions, depending on the cross-head displacement rate.
引用
收藏
页码:335 / 342
页数:8
相关论文
共 24 条
[1]  
Allen H. G., 2013, ANAL DESIGN STRUCTUR
[2]   Size effects in ductile cellular solids. Part II: experimental results [J].
Andrews, EW ;
Gioux, G ;
Onck, P ;
Gibson, LJ .
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, 2001, 43 (03) :701-713
[3]  
ASHBY M. F., 2000, Metal Foams: A Design Guide
[4]   Manufacture, characterisation and application of cellular metals and metal foams [J].
Banhart, J .
PROGRESS IN MATERIALS SCIENCE, 2001, 46 (06) :559-U3
[5]   Measurement and analysis of the structural performance of cellular metal sandwich construction [J].
Bart-Smith, H ;
Hutchinson, JW ;
Evans, AG .
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, 2001, 43 (08) :1945-1963
[6]  
Baumgärtner F, 2000, ADV ENG MATER, V2, P168, DOI 10.1002/(SICI)1527-2648(200004)2:4<168::AID-ADEM168>3.3.CO
[7]  
2-F
[8]  
Chen C, 2002, ADV ENG MATER, V4, P777, DOI 10.1002/1527-2648(20021014)4:10<777::AID-ADEM777>3.0.CO
[9]  
2-A
[10]   The plastic collapse of sandwich beams with a metallic foam core [J].
Chen, C ;
Harte, AM ;
Fleck, NA .
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, 2001, 43 (06) :1483-1506