Design of Laminated Composite Plates for Maximum Shear Buckling Loads

[+] Author and Article Information
R. R. Chang, K. H. Chu, T. Y. Kam

Department of Mechanical Engineering, National Chiao Tung University, Hsin Chu 30050, Taiwan, R.O.C.

J. Energy Resour. Technol 115(4), 314-322 (Dec 01, 1993) (9 pages) doi:10.1115/1.2906438 History: Received June 15, 1992; Revised June 08, 1993; Online April 16, 2008


The optimal lamination arrangements of laminated composite plates with maximum shear buckling loads are studied via a multi-start global optimization technique. A previously proposed shear deformable finite element is used to evaluate the positive and negative shear buckling loads of laminated composite plates in the optimal design process. Optimal lay-ups of thin as well as moderately thick composite plates with global maximum positive or negative shear buckling loads are determined utilizing the multi-start global optimal design technique. A number of examples of the optimal shear buckling design of symmetrically and antisymmetrically laminated composite plates with various material properties, length-to-thickness ratios, aspect ratios and different numbers of layer gorups are given to illustrate the trends of optimal layer orientations of the plates. Since the existence of in-plane axial forces is possible, the effects of axial compressive load on the optimal layer orientations for maximum shear buckling load are also investigated.

Copyright © 1993 by The American Society of Mechanical Engineers
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