Journal of the Society of Naval Architects of Korea, Published online: 20 Aug 2019

Optimal Lamination Design of Composite Cylinders using an Empirical Ultimate Pressure Load Formula

Author(s): Yoon Sik Cho, Jeom Kee Paik

Abstract
In this paper, a methodology is presented for determining the optimal lamination of composite cylindrical structures subject to hydrostatic pressure. The strength criterion in association with the process of optimal design is the buckling collapse of composite cylinders under hydrostatic pressure loads. An empirical formula expressed in the form of the Merchant-Rankine equation is used to calculate the ultimate strength of filament-wound composite cylinders where genetic algorithm is applied for determining the optimized stacking sequences. It is shown that the optimized lamination provides improved collapse pressure loads. It is concluded that the developed method would be useful for the optimal lamination design of composite cylindrical structures.