Face Wrinkling of Sandwich Plates and Cylinders

by Yau-Cheung Wong, (A.M.ASCE), Sr. Struct. Engr.; Smith, Hinchman & Grylls, Assoc., Inc., Detroit, MI,
Peter G. Hoadley, (M.ASCE), Prof. and Chmn. of Civ. Engrg.; Vanderbilt Univ., Nashville, TN,

Serial Information: Journal of the Engineering Mechanics Division, 1971, Vol. 97, Issue 4, Pg. 1071-1081

Document Type: Journal Paper


Face wrinkling of sandwich plates and cylinders is treated as a problem of local stability of a sandwich face sheet resting on an elastic foundation. The core is replaced by an equivalent spring determined by the use of an energy principle. Formulas are derived and curves are presented to illustrate the buckling behavior of the structure. The results of the study demonstrate that plate action does increase the face wrinkling strength of the sandwich structure. The effect of curvature of sandwich cylinders is shown to be negligible when the radius-to-face thickness ratio is large, as is usually the case.

Subject Headings: Sandwich panels | Cylinders | Elastic foundations | Curvature | Elastic analysis | Energy consumption | Buckling | Plates

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