Ravichandran, Guruswami and Rosakis, Ares J. and Hodowany, Jon and Rosakis, Phoebus (2002) On the Conversion of Plastic Work into Heat During High-Strain-Rate Deformation. In: Shock compression of condensed matter--2001 : proceedings of the Shock COmpression of Condensed Matter held in Atlanta, Georgia, June 24-29, 2001. American Institute of Physics Conference Proceedings. No.620. American Institute of Physics , Melville, NY, pp. 557-562. ISBN 0735400687. https://resolver.caltech.edu/CaltechAUTHORS:RAVaipcp02
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Abstract
Heat generation in metals during high-strain-rate plastic deformation was investigated. Experiments were designed to measure the partition of plastic work into heat and stored energy during dynamic deformations under adiabatic conditions. A Kolsky pressure bar was used to determine mechanical properties at high strain rates while a servo-hydraulic material testing system was used at low strain rates. For dynamic loading, in-situ temperature changes were measured using a high-speed infrared detector. The dependence of the fraction of plastic work converted to heat on strain and strain rate was determined for an aluminum 2024-T3 alloy and alpha-titanium. The flow stress and the fraction of plastic work converted to heat for 2024-T3 aluminum alloy were found to be a function of strain but not of the strain rate while they were found to be strongly dependent on strain rate for alpha-titanium.
Item Type: | Book Section | ||||||
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Additional Information: | ©2002 American Institute of Physics The research reported here was supported by the Office of Naval Research and the National Science Foundation and is gratefully acknowledged. | ||||||
Group: | GALCIT | ||||||
Subject Keywords: | plastic deformation; aluminium alloys; titanium; temperature measurement; heat; mechanical energy storage | ||||||
Series Name: | American Institute of Physics Conference Proceedings | ||||||
Issue or Number: | 620 | ||||||
DOI: | 10.1063/1.1483600 | ||||||
Record Number: | CaltechAUTHORS:RAVaipcp02 | ||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:RAVaipcp02 | ||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
ID Code: | 2824 | ||||||
Collection: | CaltechAUTHORS | ||||||
Deposited By: | Archive Administrator | ||||||
Deposited On: | 28 Apr 2006 | ||||||
Last Modified: | 08 Nov 2021 19:51 |
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