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An etching based axisymmetric solution for the determination of residual stresses in long fibre reinforced metal matrix composites

Durodola, J. F.; Parikh, T. S.; Fellows, N. A. and Gungor, S. (2014). An etching based axisymmetric solution for the determination of residual stresses in long fibre reinforced metal matrix composites. Journal of Composite Materials, 48(19) pp. 2375–2386.

DOI (Digital Object Identifier) Link: https://doi.org/10.1177/0021998313498105
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Abstract

Thermal residual stresses arise in long fibre reinforced composites such as metal matrix composites due to the mismatch of the thermal and mechanical properties of the constituents and the change in temperature during processing. This paper presents an inverse axisymmetric model that uses the fibre deformation obtained when the matrix is selectively etched away in order to back calculate the inherent residual stresses. The model is tested using finite element method simulation and also on published experimental data. Although, an approximate inverse solution exists in the literature, there is an ambiguity in the value of Poisson’s ratio to be used which can lead to large errors relative to the full solution presented in this paper. A sensitivity analysis is also carried out to quantify the effect of variability of material properties on the stress values obtained using the solution.

Item Type: Journal Item
Copyright Holders: 2013 The Authors
ISSN: 1530-793X
Keywords: residual stress; stress relaxation; selective etching; metal matrix composites (MMCs); Poisson’s ratio effect; sensitivity analysis
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Engineering and Innovation
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Item ID: 38178
Depositing User: Salih Gungor
Date Deposited: 15 Aug 2013 08:39
Last Modified: 29 Nov 2016 17:06
URI: http://oro.open.ac.uk/id/eprint/38178
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