Shock waves scaling in Al/W laminates excited by impact

Abstract eng:
Quasistationary shock waves generated by plate impact in Al/W laminate with different mesostructure were investigated using numerical simulations. Different time/space scales have been identified in the relations to the establishment of a quasistationary shock wave and its structure: distances travelled from impacted end to reach a quasistationary profile, and scales of leading front width, and width of the stationary shock wave. It is shown that the mentioned spatial/time scales are related to the mesostructured, nonlinear and dissipative parameters of components. The approach based on Korteweg-de-Vries equation allows approximation of the amplitude and the width of the leading front.

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