Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
254448 | Composite Structures | 2006 | 8 Pages |
Abstract
Presented in the following pages is an experimental and numerical study of dynamic local buckling of skin on foam core. Impact tests on sandwich-type structures with skins stabilized by foam demonstrated that rupture appears by debonding of skins due to a local buckling phenomenon, and that the maximum stress in the skin, obtained at rupture, grows with the increase of the loading rate of the skin. A finite element analysis allows this phenomenon to be analyzed and understood, and a mass-spring-dashpot model is proposed to model the skin debonding initiation.
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Authors
S. Rivallant, J.F. Ferrero, J.J. Barrau,