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Proceedings Paper

Experimental investigation of dynamic mixed-mode fracture initiation
Author(s): John M. Lambros; James J. Mason; Ares J. Rosakis
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Paper Abstract

The use of a coherent gradient sensing (CGS) apparatus is explored in dynamic fracture mechanics investigations. The ability of the method to accurately quantify mixed-mode crack tip deformation fields is tested under dynamic loading conditions. The specimen geometry and loading follow that of Lee and Freund1,2 who give the theoretical and numerical mixed mode K values as a function of time for the testing conditions. The CGS system’s measurements of KI and KII are compared with the predicted results, and good agreement is found.

Paper Details

Date Published: 1 December 1991
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Proc. SPIE 1554, Second International Conference on Photomechanics and Speckle Metrology, (1 December 1991); doi: 10.1117/12.49481
Show Author Affiliations
John M. Lambros, California Institute of Technology (United States)
James J. Mason, California Institute of Technology (United States)
Ares J. Rosakis, California Institute of Technology (United States)


Published in SPIE Proceedings Vol. 1554:
Second International Conference on Photomechanics and Speckle Metrology
Fu-Pen Chiang; Fu-Pen Chiang, Editor(s)

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