ISSN: 0884-6804
Page Count: 6

Wrinkling of Zebra Skin Sandwich Panels
Bekisli, B
Graduate Student, Lehigh University, PA

Grenestedt, JL
Associate Professor, Lehigh University, PA

Abstract

The wrinkling, or skin buckling, behavior of sandwich panels with skins consisting of equally spaced strips was investigated. These so-called zebra skin sandwiches proved to be superior to full skin sandwiches in terms of weight and wrinkling strength. Two and three-dimensional finite element analyses were performed and the full skin sandwich results were compared to various results in the open literature. An approximate analytical estimate, using Euler-Bernoulli kinematics in the skin and a simple exponentially decaying field in the core, was derived and compared with finite element results.

Keywords:
sandwich, skin strips, grid skins, wrinkling, finite element method

Paper ID: CTR10960J
DOI: 10.1520/CTR10960J
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