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Experimental investigation of dynamic mixed-mode fracture initiation

Lambros, J. and Mason, J. J. and Rosakis, A. J. (1991) Experimental investigation of dynamic mixed-mode fracture initiation. In: Second International Conference on Photomechanics and Speckle Metrology. Proceedings of SPIE. No.1554. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, pp. 70-83. ISBN 9780819406828.

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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 Freund 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.

Item Type:Book Section
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Rosakis, A. J.0000-0003-0559-0794
Additional Information:© 1991 Society of Photo-Optical Instrumentation Engineers (SPIE). We would like to thank Prof. L.B. Freund and Dr. Y.J. Lee for their many helpful discussions and for making their numerical data available to us prior to publication. We would also like to thank Dr. H. Tippur for his help and advice given in the early stages of this study. Finally, the support of ONR through Contract N00014-90-J-1340 is gratefully acknowledged.
Funding AgencyGrant Number
Office of Naval Research (ONR)N00014-90-J-1340
Series Name:Proceedings of SPIE
Issue or Number:1554
Record Number:CaltechAUTHORS:20190221-110520608
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Official Citation:John M. Lambros, James J. Mason, and Ares J. Rosakis "Experimental investigation of dynamic mixed-mode fracture initiation", Proc. SPIE 1554, Second International Conference on Photomechanics and Speckle Metrology, (1 December 1991); doi: 10.1117/12.49481;
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:93077
Deposited By: George Porter
Deposited On:28 Feb 2019 15:34
Last Modified:16 Nov 2021 16:55

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