Three-point bending of physically asymmetric metal sandwich beams with aluminum foam core: failure behavior and optimal design

2021 ◽  
pp. 114873
Author(s):  
Mingshi Wang ◽  
Xuehui Yu ◽  
Jianxun Zhang ◽  
Qinghua Qin
Keyword(s):  
Optimal Design ◽  
Aluminum Foam ◽  
Failure Behavior ◽  
Foam Core ◽  
Sandwich Beams ◽  
Three Point Bending

The Failure Behavior of Geometrically Asymmetric Metal Foam Core Sandwich Beams Under Three-Point Bending

2014 ◽  
Vol 81 (7) ◽  
Author(s):  
Jianxun Zhang ◽  
Qinghua Qin ◽  
Weilong Ai ◽  
Huimin Li ◽  
T. J. Wang
Keyword(s):  
Failure Mechanism ◽  
Failure Modes ◽  
Metal Foam ◽  
Minimum Weight ◽  
Failure Behavior ◽  
Foam Core ◽  
Sandwich Beams ◽  
Three Point Bending ◽  
Initial Failure ◽  
Core Height

The failure behavior of geometrically asymmetric sandwich beams with a metal foam core is analytically and experimentally investigated. New initial failure modes of the asymmetric sandwich beams are observed under three-point bending, i.e., face yield, face wrinkling, core shear A, core shear AB, core shear A-AB, and indentation. It is shown that the initial failure modes of sandwich beams depend on the span of the beam, the thicknesses of top and bottom face sheets, core height and material properties. We derived the analytical formulae for the initial failure loads and then constructed the initial failure mechanism maps for the geometrically asymmetric sandwich beams. It is shown that the analytically predicted initial failure mechanism maps are in good agreement with the experimental results, which are clearly different from the symmetric sandwich beams. As a preliminary application, the minimum weight designs are presented for asymmetric metal sandwich beams.

Failure of sandwich beams consisting of alumina face sheet and aluminum foam core in bending

2005 ◽  
Vol 409 (1-2) ◽  
pp. 292-301 ◽  
Author(s):  
Kapil Mohan ◽  
Yip Tick Hon ◽  
Sridhar Idapalapati ◽  
Hong Pheow Seow
Keyword(s):  
Aluminum Foam ◽  
Face Sheet ◽  
Foam Core ◽  
Sandwich Beams

scholarly journals 543 Failure Behavior of Foam Core Sandwich Beams Under Indentation Loading

2010 ◽  
Vol 2010.18 (0) ◽  
pp. _543-1_-_543-4_
Author(s):  
Takafumi UEZONO ◽  
Shu MINAKUCHI ◽  
Nobuo TAKEDA
Keyword(s):  
Failure Behavior ◽  
Foam Core ◽  
Sandwich Beams

Design of Hybrid Sandwich Panel with Aluminum Foam Core and Carbon Fiber Reinforced Plastic Face Sheets under Three-Point Bending

2006 ◽  
Vol 111 ◽  
pp. 63-66 ◽  
Author(s):  
K. Mohan ◽  
Tick Hon Yip ◽  
Idapalapati Sridhar ◽  
H.P. Seow
Keyword(s):  
Carbon Fiber ◽  
Aluminum Foam ◽  
Failure Modes ◽  
Shear Failure ◽  
Elastic Stiffness ◽  
Foam Core ◽  
Fiber Reinforced ◽  
Three Point Bending ◽  
Structural Applications ◽  
Carbon Fiber Reinforced

Aluminum foams are very popular material for structural applications because of its attractive combination of properties. Structural performance of those foams can be enhanced by bonding them between strong and stiff face sheets such as carbon fiber reinforced plastics (CFRP). The response of hybrid sandwich panels comprising aluminum foam core and CFRP face sheets were investigated under three-point bending and measured response is verified with finite element numerical simulations. Core indentation and core shear, failure modes are identified. Experimentally measured elastic stiffness and failure load of thee tested beams were found to be in good agreement with the numerical simulation and analytical predictions.

Aluminum Foam Sandwich with Different Face-Sheet Materials under Three-Point Bending

2017 ◽  
Vol 872 ◽  
pp. 25-29 ◽  
Author(s):  
Chang Yan ◽  
Xu Ding Song ◽  
Shuo Feng
Keyword(s):  
Stainless Steel ◽  
Aluminum Alloy ◽  
Aluminum Foam ◽  
Sheet Material ◽  
Face Sheet ◽  
304 Stainless Steel ◽  
Foam Core ◽  
6061 Aluminum Alloy ◽  
Three Point Bending ◽  
Sheet Materials

Aluminum foam sandwich structure is a new type of composite material with excellent mechanical and functional properties. As it is known that properties of aluminum foam sandwiches (AFS) vary if the foam core is sandwiched between different face sheets. To study the effects of face-sheet materials on the mechanical properties of AFS and enable a better understanding of the usage of such AFS structures under flexural load, AFS sandwiched by 6061-aluminum alloy face-sheets and 304 stainless steel face-sheets were fabricated and investigated under three-point bending by using WDW-T100 electronic universal tensile testing machine. Results showed that 6061-aluminum alloy reinforced AFS had the same peak load value with 304-stainless steel reinforced one almost so long as the thicknesses of the face-sheet material were the same and the foam core densities were the same too, but the energy absorption ability of 304-stainless steel reinforced AFS was much higher than that of 6061-aluminum alloy reinforced. However, the integrality of the 6061-sandwiched AFS was better than 304-sandwiched AFS. Deformation modes of the two types of AFS were also discussed in the present study.

Sign in / Sign up

Export Citation Format

Share Document