Abstract
Full-field temperature and strain measurements were recorded during tension tests of AISI 316 on a hydraulic load frame at a strain rate of 1 s−1. The temperature increase was measured on one side of the specimen using a high speed IR camera while the deformation was measured on the opposite side with a visible camera, each at a frame rate of 500 FPS. Uniform deformation of the specimen was observed up to strains of 0.25 until necking occurred and localization strains reached up to 0.75 at failure. The maximum temperature as measured by the IR camera was 260 °C before failure. The fraction of plastic work converted to heat (ß) was calculated over the entire gage length of the specimen using the local measurements of stress, strain, and temperature and varied between 0.6 and 0.9 throughout the test.
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Acknowledgements
The research was supported by the U.S.A. Federal Aviation Administration, Grant No. 11-G-004. The authors are grateful to Mr. William Emmerling, and Dr. Chip Queitzsch for their support and involvement.
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© 2018 The Society for Experimental Mechanics, Inc.
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Smith, J.L., Kuokkala, VT., Seidt, J.D., Gilat, A. (2018). Internal Heat Generation in Tension Tests of AISI 316 Using Full-Field Temperature and Strain Measurements. In: Lamberti, L., Lin, MT., Furlong, C., Sciammarella, C. (eds) Advancement of Optical Methods in Experimental Mechanics, Volume 3. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-319-63028-1_16
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DOI: https://doi.org/10.1007/978-3-319-63028-1_16
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