Advancement of Optical Methods in Experimental Mechanics, Volume 3

16 Internal Heat Generation in Tension Tests of AISI 316 Using Full-Field Temperature and Strain Measurements 103 16.4 Summary and Conclusions Simultaneous full-field deformation measurements, temperature measurements, and beta calculations on the surface of the specimen have been completed in a tension test at 1 s 1. There is uniform temperature rise during the uniform deformation before necking and faster localized deformation and heating in the neck region during necking. The partition of plastic work converted to heat increases as the plastic strain in the specimen increases. Similar tests at higher strain rates should be conducted to determine if the beta is also strain rate dependent. 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. References 1. Saai, A., Louche, H., Tabourot, L., Change, H.J.: Experimental and numerical study of the thermo-mechanical behavior of al bi-crystal in tension using full field measurements and micromechanical modeling. Mech. Mater. 42(3), 275–292 (2010) 2. Oliferuk, W., Maj, M., Zembrycki, K.: Determination of the energy storage rate distribution in the area of strain localization using infrared and visible imaging. Exp. Mech. 55(4), 753–760 (2013) 3. Rosakis, P., Rosakis, A.J., Ravichandran, G., Hodowany, J.: A thermodynamic internal variable model for the partition of plastic work into heat and stored energy in metals. J. Mech. Phys. Solids. 48(3), 581–607 (2000) 4. Hodowany, J., Ravichandran, G., Rosakis, A., Roaskis, P.: Partition of plastic work into heat and stored energy in metals. Exp. Mech. 40(2), 113–123 (2000) Jarrod L. Smith is a 2nd year PhD student at the Ohio State University. In the past Jarrod has focused his research on the full-field strain and infrared radiation measurements of metals at various strain rates. The paper Jarrod is presenting today is the beginning of his dissertation work on the fraction of work that is converted to heat.

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