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Residual stress measurements in fibre reinforced titanium alloy composites

Gungor, Salih (2002). Residual stress measurements in fibre reinforced titanium alloy composites. Acta Materialia, 50(8) pp. 2053–2073.

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The residual stresses in two Ti/SiC unidirectional composite panels with thick cladding were measured using two experimental methods. The variation of in-plane residual stresses in the cladding of the materials was measured by using a crack compliance method, and the average fibre stresses were inferred from the results. The applicability of a simple bending theory for the calculation of the residual stresses from curvature measurements was confirmed by a finite element analysis. Using a matrix etching method, the longitudinal fibre strains were measured from the relaxation of fibres upon dissolving the matrix in a part of the composite. The stresses in the fibre and the matrix were then calculated using a concentric cylinder model. By combining the results of both methods, the out-of-plane stresses were also determined, so that the full stress state in the reinforced section of the material could be obtained.

Item Type: Journal Article
Copyright Holders: 2002 Acta Materialia Inc.
ISSN: 1359-6454
Keywords: residual stresses; titanium matrix composites; moiré interferometry
Academic Unit/Department: Mathematics, Computing and Technology > Engineering & Innovation
Mathematics, Computing and Technology
Item ID: 10174
Depositing User: Salih Gungor
Date Deposited: 28 Nov 2007
Last Modified: 14 Jan 2016 16:50
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