Title: Buckling design optimisation of composite laminated plates using differential evolution algorithm approach

Authors: M.V.A. Raju Bahubalendruni; T.V. Srinivasa Rao; Venkataramana Mantha

Addresses: CoE – Composite Structures, ERS-OEM-ME-Aero, HCL Technologies Limited, #3,Surya Spphire, Electronic City Phase-1, Bangalore-560100, India. ' CoE – Composite Structures, ERS-OEM-ME-Aero, HCL Technologies Limited, #3,Surya Spphire, Electronic City Phase-1, Bangalore-560100, India. ' CoE Composite Structures, Aero-structures Group, ERS-OEM-ME-Aero, HCL Technologies Limited, #3,Surya Spphire, Electronic City Phase-1, Bangalore-560100, India

Abstract: This paper presents differential evolution algorithm technique to design a rectangular composite plate by optimising the laminate stacking sequence whose aim is to maximise the buckling load capability without any failure at ply level. In this paper, Tsai Hill failure criterion is used to compute with the failure index and reserve factors for each ply. The optimised results obtained by implementing the differential evolution algorithm for three different load cases are compared with Msc-Nastran FEA solver results. The usage of differential evolution (DE) algorithm for laminate stacking sequence optimisation to maximise buckling load capability is discussed in this paper. The results show that the differential evolution algorithm technique is an effective optimisation tool to determine both the accurate laminate stacking sequence of composite panel. We also notice that the efficiency corroborates the results.

Keywords: composite plates; laminated plates; buckling design; optimisation; differential evolution; laminate stacking sequences; Tsai Hill failure criterion; FEA; finite element analysis; buckling load capability.

DOI: 10.1504/IJTAMM.2012.049965

International Journal of Theoretical and Applied Multiscale Mechanics, 2012 Vol.2 No.3, pp.255 - 270

Received: 23 Mar 2012
Accepted: 03 Aug 2012

Published online: 19 Oct 2012 *

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