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Multi-objective optimization in end-milling of glass fiber reinforced polymer composites using desirability functional analysis and grey relational analysis

M.P. Jenarthanan (School of Mechanical Engineering, SASTRA University, Thanjavur, India)
Venkata Sai Sunil Gujjalapudi (School of Mechanical Engineering, SASTRA University, Thanjavur, India)
Venkatraman V. (School of Humanities and Sciences, SASTRA University, Thanjavur, India)

Multidiscipline Modeling in Materials and Structures

ISSN: 1573-6105

Article publication date: 18 September 2017

Issue publication date: 4 October 2017

142

Abstract

Purpose

The purpose of this paper is to originate a statistical model for delamination factor, surface roughness, machining force and also to determine and compare the effects of machining parameters (spindle speed, fiber orientation angle, helix angle and feed rate) on the output responses during end-milling of glass fiber reinforced polymers (GFRP) by using desirability functional analysis (DFA) and grey relational analysis (GRA).

Design/methodology/approach

Based on Taguchi’s L27 orthogonal array, milling experiments were carried on GFRP composite plates employing solid carbide end mills with different helix angles. The machining parameters were optimized by an approach based on DFA and GRA, which were useful tools for optimizing multi-response considerations, namely, machining force, surface roughness and delamination factor. A composite desirability index was obtained for multi-responses using individual desirability values from DFA. Based on this index and grey relational grade the optimum levels of parameters were identified and significant contribution of parameters was ascertained by analysis of variance.

Findings

Fiber orientation angle (66.75 percent) was the significant parameter preceded by feed rate (15.05 percent), helix angle (7.76 percent) and spindle speed (0.30 percent) for GFRP composite plates.

Originality/value

Multi-objective optimization in end-milling of GFRP composites using DFA and GRA has not been performed yet.

Keywords

Citation

Jenarthanan, M.P., Gujjalapudi, V.S.S. and V., V. (2017), "Multi-objective optimization in end-milling of glass fiber reinforced polymer composites using desirability functional analysis and grey relational analysis", Multidiscipline Modeling in Materials and Structures, Vol. 13 No. 3, pp. 391-408. https://doi.org/10.1108/MMMS-11-2016-0059

Publisher

:

Emerald Publishing Limited

Copyright © 2017, Emerald Publishing Limited

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