Low-velocity heavy-mass impact response of slender metal foam core sandwich beam

2011 ◽  
Vol 93 (6) ◽  
pp. 1526-1537 ◽  
Author(s):  
Qing Hua Qin ◽  
T.J. Wang
Keyword(s):  
Metal Foam ◽  
Sandwich Beam ◽  
Impact Response ◽  
Foam Core ◽  
Low Velocity

On low-velocity impact response of metal foam core sandwich beam: A dual beam model

2017 ◽  
Vol 176 ◽  
pp. 1039-1049 ◽  
Author(s):  
Qinghua Qin ◽  
Chunping Xiang ◽  
Jianxun Zhang ◽  
Mingshi Wang ◽  
T.J. Wang ◽  
...  
Keyword(s):  
Metal Foam ◽  
Sandwich Beam ◽  
Impact Response ◽  
Low Velocity Impact ◽  
Beam Model ◽  
Foam Core ◽  
Low Velocity ◽  
Velocity Impact ◽  
Dual Beam

Plastic Analysis of Metal Foam Core Sandwich Beam Transversely Loaded by a Flat Punch: Combined Local Denting and Overall Deformation

2012 ◽  
Vol 79 (4) ◽  
Author(s):  
Qing Hua Qin ◽  
T. J. Wang
Keyword(s):  
Metal Foam ◽  
Sandwich Beam ◽  
Plastic Behavior ◽  
Foam Core ◽  
Sandwich Beams ◽  
Low Velocity ◽  
Flat Punch ◽  
Rigid Plastic ◽  
Energy Impact ◽  
Impact Problems

The objective of this work is to investigate the quasi-static plastic behavior of a fully clamped metal foam core sandwich beam transversely loaded by a flat punch. A rigid-plastic beam-on-foundation model is extended to study the local denting deformation of a metal foam core sandwich beam. The effects of local denting and core strength on the overall deformation are incorporated in the analysis. Analytical solutions are derived for three different regimes of post-yield deformation mechanisms. Additionally, finite element results are obtained. Comparisons of the present analytical predictions with numerical, previous experimental, and analytical results are presented, respectively. It is shown that local denting has a significant effect on the finite deflection response of the metal foam core sandwich structure. The load-carrying and energy absorption capacities of sandwich beams may be overestimated if the effect of local denting is neglected in analysis. It is demonstrated that the present analytial model can reasonably predict the behaviors of post-yield deformation of sandwich beams. Moreover, the present analytical method can be extended to predict the low velocity/energy impact problems of sandwich structures.

Effective design of a sandwich beam with a metal foam core

2007 ◽  
Vol 45 (4) ◽  
pp. 432-438 ◽  
Author(s):  
E. Magnucka-Blandzi ◽  
K. Magnucki
Keyword(s):  
Metal Foam ◽  
Sandwich Beam ◽  
Foam Core ◽  
Effective Design
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