Evaluation of Residual Stresses in Plastics and Composites By Shearography Oakland University

Format:

Conference/Event

Author/Creator:

Hung, Y. Y., author.

Conference Name:

International Body Engineering Conference & Exposition (1999-09-28 : Detroit, Michigan, United States)

International Congress & Exposition (1999-03-01 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1999

Summary:

This paper presents an application of shearography, an optical method for full-field strain measurement, for evaluating residual stresses in plastic/composite components. The approach is based on measuring the change in slope of the component surface, which is caused by the release of residual stresses, in the vicinity of a small, shallow blind-hole or of a small indentation made on the underside of the component during testing. The severity of slope-change, and hence the fringe density, gives a measure of the residual stresses in the component. This method does not require laborious mounting of strain gages or transducers whose stiffness could affect the accuracy of measurements, and is therefore practical for use in both production and field environment

Notes:

Vendor supplied data

Publisher Number:

1999-01-1254

Access Restriction:

Restricted for use by site license