Photoelastic Stress and thermographic measurements of automotive windscreen defects generated by projectile impact

Donne, Kelvin E. and Thomas, Richard D. and Davies, Christopher and Calvert, Geoffrey (2007) Photoelastic Stress and thermographic measurements of automotive windscreen defects generated by projectile impact. Thermology International, 17 (3). pp. 110-113. ISSN 1560-604X

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Abstract

This paper describes an experimental technique to evaluate the stress distribution around an automotive windscreen ‘chip’, that is created by projectile impact. This stress distribution is measured before and after a typical resin injection repair procedure and the results indicate a significant reduction in the residual shear stress. Concurrent thermographic measurements of the impact region during the repair procedure also suggest that the quality of the repair is dependent on the temperature profile at the time of repair. Preliminary computational modelling of a representative windscreen defect illustrates the predisposition of ‘star-shaped’ chips to crack-off to a windscreen edge under typical vehicle usage.

Item Type: Article
Additional Information: Citation: DONNE, K. E., THOMAS, R. D., DAVIES, C. and CALVERT, G. 2007. Photoelastic Stress and thermographic measurements of automotive windscreen defects generated by projectile impact. Thermology International, 17(3), pp. 110-113..
Uncontrolled Keywords: photoelastic stress, thermography, glass repair, windscreen
Subjects: T Technology > TL Motor vehicles. Aeronautics. Astronautics
Depositing User: John Dalling
Date Deposited: 10 Nov 2010 15:50
Last Modified: 21 Feb 2016 14:29
URI: http://repository.uwtsd.ac.uk/id/eprint/174

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