Published December 8, 1997
| public
Journal Article
Investigation of the mechanics of intersonic crack propagation along a bimaterial interface using coherent gradient sensing and photoelasticity
Abstract
This paper describes the first experimental observations of various phenomena characteristic of dynamic intersonic decohesion of bimaterial interfaces. Two separate but complementary optical methods are used in conjunction with high speed photography to explore the nature of the large scale contact and mach wave formation at the vicinity of running cracks in two different bimaterial systems. Theoretical predictions of crack‐tip speed regimes where large scale contact is implied are confirmed. Also, the theoretically predicted mach wave emanating from the intersonically propagating crack‐tip is observed. Direct visual evidence is also obtained for another travelling mach wave emanating from the end of the intersonically moving contact zone.
Additional Information
© 1997 The Royal Society. Received 16 September 1996; revised 14 April 1997; accepted 12 June 1997. The authors acknowledge the support of the National Science Foundation through a joint grant, no. CMS-9424113, to the University of Rhode Island and the California Institute of Technology (Dr O. Dillon, Scientific Officer). A.J.R. and J.L. also acknowledge the support of the Office of Naval Research under grant no. N00014-95-1-0453 (Dr Y. Rajapakse, Scientific Officer).Additional details
- Eprint ID
- 105654
- Resolver ID
- CaltechAUTHORS:20200929-143508284
- CMS-9424113
- NSF
- N00014-95-1-0453
- Office of Naval Research (ONR)
- Created
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2020-09-30Created from EPrint's datestamp field
- Updated
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2021-11-16Created from EPrint's last_modified field
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- GALCIT