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RESEARCH PAPERS

Shear-Lag Effect in Sandwich Panels With Stiffeners Under Three-Point Bending

[+] Author and Article Information
K. Kemmochi, R. Hayashi, K. Ishiwata

Industrial Products Research Institute, Agency of Industrial Science and Technology, 1-4, Higashi 1-Chome, Yatabe-Cho, Tsukuba-Gun, Ibaragi, 305 Japan

T. Akasaka

Chuo University, Kasuga-Cho, Tokyo, Japan

J. Appl. Mech 47(2), 383-388 (Jun 01, 1980) (6 pages) doi:10.1115/1.3153673 History: Received March 01, 1979; Revised July 01, 1979; Online July 21, 2009

Abstract

In this paper, a modified theory based upon Reissner’s procedure for the shear-lag effect of the sandwich panel is presented, which includes the effects of the anisotropy of the faces and the shearing rigidity of the core. In order to verify this theory, bending experiments were performed with sandwich panels composed of a soft core, stiffeners, and orthotropic faces. It was found that the effective bending rigidity calculated from this theory was lower than that derived from the classical bending theory and that the theoretical strain distribution on the faces agreed well with the experimental results.

Copyright © 1980 by ASME
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