Optimization of layered material configuration for shock attenuation
conference paper
Multi-layered materials with alternating impedances as a mean to mitigate sympathetic detonation is considered in this investigation by studying the wave scattering and energy absorption phenomena. This is achieved using an analytical wave-tracking model that accounts for the different wave interactions within and at the interface of each layer. It is shown that there is a critical areal density of the overall multi-layered system beyond which the performance is increased significantly due to a larger amount of energy absorption. This trend is increasingly significant for increasing impedance mismatch between the different layers. It is also shown that increasing the number of interfaces increases slightly the system performance. The analytical results are supported by numerical simulations. Furthermore mitigation of sympathetic detonation using multi-layered materials is demonstrated experimentally.
Topics
TNO Identifier
529334
Source title
16th ISIEMS International Symposium for the Interaction of the Effects of Munitions with Structures, Destin, FL, USA, 9-13 November 2015
Collation
10 p.
Files
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