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Title: A procedure to select the best material combinations and optimally design hybrid composite plates for minimum weight and cost
Authors: Walker, Mark 
Reiss, Talmon
Adali, Sarp 
Keywords: Hybrid laminates;Composite plates
Issue Date: 1997
Publisher: Taylor & Francis
Abstract: The optimal layup with least weight or cost for a symmetrically laminated plate subject to a buckling load is determined using a hybrid composite construction. A hybrid construction provides further tailoring capabilities and can meet the weight, cost and strength constraints while a non-hybrid construction may fail to satisfy the design requirements. The objective of the optimization is to minimize either the weight or cost of the plate using the ply angles, layer thicknesses and material combinations as design variables. As the optimization problem contains a large number of continuous (ply angles and thicknesses) and discrete (material combinations) design variables, a -sequential solution procedure is devised in which the optimal variables are computed in different stages. The proposed design method is illustrated using graphite, kevlar and glass epoxy combinations and the efficiencies of the hybrid designs over the non-hybrid ones are computed.
Description: Originally published in: Engineering Optimization, Vol. 29, Iss: 1-4, 1997.
Rights: The electronic version of the article published in Engineering Optimization 1997, 29(1-4): 65-83 © 1997 copyright Taylor & Francis. The Engineering Optimization is available online at:
Appears in Collections:Research Publications (Engineering and Built Environment)

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