Minimum weight design of fiber-reinforced laminated composite structures with maximum stress and Tsai-Wu failure criteria

Abstract

In this article, a minimum weight design of carbon/epoxy laminates is carried out using genetic algorithms. New failure envelopes have been developed by the combination of two commonly used phenomenological failure criteria, namely Maximum Stress (MS) and Tsai—Wu (TW) are used to obtain the minimum weight of the laminate. These failure envelopes are the most conservative failure envelope (MCFE) and the least conservative failure envelope (LCFE). Uniaxial and biaxial loading conditions are considered for the study and the differences in the optimal weight of the laminate are compared for the MCFE and LCFE. The MCFE can be used for design of critical load-carrying composites, while the LCFE could be used for the design of composite structures where weight reduction is much more important than safety such as unmanned air vehicles.

A optimization technique for the composite strut using genetic algorithms

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Analysis and design procedure of hybrid long-span cable-stayed bridge using advanced composite material

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Computational analysis and material selection in cross-section of a composite wind turbine blade

“…The optimal design of the rotor blades is today a complex and multifaceted task and requires optimization of properties, performance, and economy. 18 In the past, several different materials have been used in order to meet all these requirements. Rotor blades have historically been made of wood, as it appears in many engineering applications and has been a common construction material for a long time.…”

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