Guduru, P. R. and Zehnder, A. T. and Rosakis, A. J. and Ravichandran, G. (2001) Dynamic full field measurements of crack tip temperatures. Engineering Fracture Mechanics, 68 (14). pp. 1535-1556. ISSN 0013-7944. doi:10.1016/S0013-7944(01)00045-5. https://resolver.caltech.edu/CaltechAUTHORS:20150227-142723796
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Abstract
This paper presents a detailed investigation of the evolution of temperature field at the tip of a stationary crack subjected to dynamic loading in two different types of steels. A high speed two-dimensional infrared camera was used to image the temperature fields at the crack tips. In a high strength maraging steel, the thermograms reveal the development of plastic zone and the process of crack initiation and propagation. In ductile HY100 steel, the thermograms are used to estimate the evolution of J integral and its critical value at crack initiation. The temperature images are also used to investigate the dominance of HRR field around the crack tip.
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| Additional Information: | © 2001 Elsevier Science Ltd. Received 17 October 2000: received in revised form 4 March 2001; accepted 12 March 2001. This work was supported by the Engineering Research Program of the Office of Basic Energy Sciences at the Department of Energy through grant# DE-FG03-95ER14560 (Dr. Robert Price, Project Officer). PRG is pleased to acknowledge many useful discussions with Dr. David M. Owen, Caltech during the course of this work. | |||||||||
| Group: | GALCIT | |||||||||
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| Subject Keywords: | Infrared temperature measurement; Dynamic fracture; Crack tip temperature; J integral | |||||||||
| Issue or Number: | 14 | |||||||||
| DOI: | 10.1016/S0013-7944(01)00045-5 | |||||||||
| Record Number: | CaltechAUTHORS:20150227-142723796 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20150227-142723796 | |||||||||
| Official Citation: | P.R Guduru, A.T Zehnder, A.J Rosakis, G Ravichandran, Dynamic full field measurements of crack tip temperatures, Engineering Fracture Mechanics, Volume 68, Issue 14, September 2001, Pages 1535-1556, ISSN 0013-7944, http://dx.doi.org/10.1016/S0013-7944(01)00045-5. (http://www.sciencedirect.com/science/article/pii/S0013794401000455) | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 55342 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Cheryl Gause | |||||||||
| Deposited On: | 04 Mar 2015 19:00 | |||||||||
| Last Modified: | 10 Nov 2021 20:45 |
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