Conservative Failure Criteria for Optimal Design of Composite Structures Including Effect of Shear Loading

Satheesh, R and Naik, Narayana G and Ganguli, R (2012) Conservative Failure Criteria for Optimal Design of Composite Structures Including Effect of Shear Loading. In: MECHANICS OF ADVANCED MATERIALS AND STRUCTURES, 19 (8). pp. 625-640.

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Abstract

A minimum weight design of laminated composite structures is carried out for different loading conditions and failure criteria using genetic algorithm. The phenomenological maximum stress (MS) and Tsai-Wu (TW) criteria and the micro-mechanism-based failure mechanism based (FMB) failure criteria are considered. A new failure envelope called the Most Conservative Failure Envelope (MCFE) is proposed by combining the three failure envelopes based on the lowest absolute values of the strengths predicted. The effect of shear loading on the MCFE is investigated. The interaction between the loading conditions, failure criteria, and strength-based optimal design is brought out.

Item Type:	Journal Article
Publication:	MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
Publisher:	TAYLOR & FRANCIS INC
Additional Information:	Copyright for this article belongs to Taylor and Francis
Keywords:	failure criteria; genetic algorithm; optimal design; conservative design; loading; micromechanics
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	17 Oct 2012 06:12
Last Modified:	17 Oct 2012 06:12
URI:	http://eprints.iisc.ac.in/id/eprint/45182

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