Ply level uncertainty effects on failure curves and optimal design of laminated composites using directional bat algorithm

Mukherjee, S and Reddy, MP and Ganguli, R and Gopalakrishnan, S (2018) Ply level uncertainty effects on failure curves and optimal design of laminated composites using directional bat algorithm. In: International Journal for Computational Methods in Engineering Science and Mechanics, 19 (3). pp. 156-170.

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Abstract

The present study investigates the effect of both ply level material uncertainty and ply angle uncertainty on the failure envelope, strength characteristics and design of laminated composite. Multiple failure envelopes and distributions of the strength parameters are obtained for Tsai-Wu and maximum stress criteria using Monte Carlo simulation. A newly developed directional bat algorithm (dBA) is then used to perform the constrained design optimization of laminated composite for the first time while considering uncertainty effects. The effect of ply level uncertainty on failure envelopes and the corresponding optimal design of laminated composite structures is thus quantified.

Item Type:	Journal Article
Publication:	International Journal for Computational Methods in Engineering Science and Mechanics
Publisher:	Bellwether Publishing, Ltd.
Additional Information:	The copyright for this article belongs to the Bellwether Publishing, Ltd.
Keywords:	Composite structures; Constrained optimization; Failure (mechanical); Laminating; Monte Carlo methods; Optimal systems; Structure (composition), Bat algorithms; Constrained design optimizations; Failure envelope; Material uncertainty; Strength characteristics; Strength parameters; uncertainty; Uncertainty effects, Laminated composites
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	08 Aug 2022 05:27
Last Modified:	08 Aug 2022 05:27
URI:	https://eprints.iisc.ac.in/id/eprint/75560

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