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

(Received 29 April 2003; accepted 22 August 2003)

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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