Theory for Small Mass Impact on Sandwich Panels
This paper presents a theory for small mass impact on sandwich panels. Small mass impact response of plates is governed by wave propagation and is observed when the impactor/plate mass ratio is significantly smaller than unity. The present method is limited to impact times where through-the-thickness waves may be neglected so that the response is governed by flexural and shear plate waves. In contrast, large mass impact response is governed by the corresponding static deflection mode and is observed when the impactor/plate mass ratio is larger than unity. The different response types and their dependency on impactor/plate mass ratio for monolithic plates were discussed by Olsson (1993). In the present paper we discuss the specific conditions for small mass impact response of sandwich panels.
KeywordsSandwich Panel Face Sheet Impact Response Mindlin Plate Flexural Wave
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