A study on compressive shock wave propagation in metallic foams |
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| Authors: | WANG ZhiHua ZHANG YiFen REN HuiLan & ZHAO LongMao State Key Laboratory of Explosion Science Technology Beijing Institute of Technology Beijing China |
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| Affiliation: | WANG ZhiHua1,2,ZHANG YiFen2,REN HuiLan1 & ZHAO LongMao2 1 State Key Laboratory of Explosion Science , Technology,Beijing Institute of Technology,Beijing 100081,China,2 Institute of Applied Mechanics , Biomedical Engineering,Taiyuan University of Technology,Taiyuan 030024 |
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| Abstract: | Metallic foam can dissipate a large amount of energy due to its relatively long stress plateau,which makes it widely applicable in the design of structural crashworthiness. However,in some experimental studies,stress enhancement has been observed when the specimens are subjected to intense impact loads,leading to severe damage to the objects being protected. This paper studies this phenomenon on a 2D mass-spring-bar model. With the model,a constitutive relationship of metal foam and corresponding loading an... |
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| Keywords: | aluminum foam heterogeneous intensive pulse loading stress enhancement |
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