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Proceedings Paper

Measurement of mixed mode (I,II) stress intensity factors (SIFs) of an interface crack by the optical method of caustics
Author(s): Lyndon Edwards; H. Y. Ahmad
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Paper Abstract

The optical method of caustics has been utilized to study the problem of a crack lying along the interface of adhesively bonded aluminum structures. The basic principles of the method, the mathematical description and the derivation of caustic evaluation formulas are presented for homogeneous and dissimilar materials. Optically flat mirror surfaces were achieved by developing a 'coating adhesion' technique. Predicted caustics using the derived equations were compared with the caustics obtained experimentally which show good agreement.

Paper Details

Date Published: 27 September 1993
PDF: 11 pages
Proc. SPIE 1999, Adhesives Engineering, (27 September 1993); doi: 10.1117/12.158596
Show Author Affiliations
Lyndon Edwards, Open Univ. (United Kingdom)
H. Y. Ahmad, Open Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 1999:
Adhesives Engineering
Eric A. Norland; Kenneth M. Liechti, Editor(s)

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