Optimal Stacking Sequence Design of Laminated Composite Shells

Abstract

An optimization procedure is proposed for the design of cylindrical composite shell having midplane symmetry and subjected to axial force and internal pressure. Tsai-Wu failure criterion is taken as objective function while the stacking sequence represents the design variable. The optimal design formulation based on the state space method is adopted and solution procedure is described with the emphasis on the method of calculating the design sensitivities. A gradient projection algorithm is employed for the optimization process. Numerical results are presented for the several test problems.

Optimal Design of Laminated Composite Plates for Maximum Buckling Load Using Genetic Algorithm

“…Biaxial loading condition (N x :N y :N xy ¼ 1:1:0) in a plate is similar to the pressure vessel with an internal pressure [4]. The optimal, worst case angles and Table 4.…”

“…Stiffness was also considered as the objective function [2]. Kim et al [3,4] used the strength as an objective function. For dynamic analysis, Bert [5] and Adali and Verijenko [6] performed the optimization for the maximum fundamental frequency.…”

Optimum Design of Composite Structures: A Literature Survey (1969–2009)

“…The researchers optimizing composite plates or shells usually considered in-plane loads, transverse loads, and bending and/or twisting moments. In some studies, some other types of loading were also considered like axial loading of plates through bolts, 143,208,296,374,751,845,890 axial loading of joints, 484,786 torsional loading, 7,23,52,63,72,119,209,222,389,434,456,525,526,550,627,649,663,849,926 bending, 88,513,570 lateral loading, 943,945 axial loading, 7,23,30,88,110,119,134,144,154,172,209,222,235–237,244,266,301,312,330,332,347,373,389,390,404,434,473,…”

“…In order to check whether a configuration generated by optimization algorithm for the composite structure will result in satisfactory performance, one should use a reliable failure criterion. As intralaminar static failure criterion, the researchers used Tsai-Wu, 64,68,78,83,109,110,128,130,155,174,197,205,209,211,217,218,223,233,234,244,252,261,266,269,276,277,309,319,321,326,339,342,355,360,365,371,387,394,398,403,411–414,439,444,447,451,452,456,477,483,484,489,490,510,511,519,522,529,532,535,…”