A Numerical Verification of the Reliability of a Split Hopkinson Pressure Bar with a Total Bar Length of 3 m and a Diameter of 1 Inch

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A short split Hopkinson bar system with a total bar length of 3 m (a 2 m input bar plus a 1 m output bar), a striker length of 254 mm, and a diameter of 25.4 mm, is designed. Through numerical experiments, the stress vs. strain curve and the rate vs. strain curve of the specimen are obtained from the bar signals. These measured curves are reasonably consistent with the input stress-strain curve of the specimen for the numerical experiment and the prediction by the recently reported rate equation, respectively, verifying the reliability of the designed SHPB system.

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Periodical:

Edited by:

Guanghsu Chang, Jieh-Shian Young and Wirachman Wisnoe

Pages:

681-684

DOI:

10.4028/www.scientific.net/AMM.799-800.681

Citation:

H. H. Shin et al., "A Numerical Verification of the Reliability of a Split Hopkinson Pressure Bar with a Total Bar Length of 3 m and a Diameter of 1 Inch", Applied Mechanics and Materials, Vols. 799-800, pp. 681-684, 2015

Online since:

October 2015

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$35.00

* - Corresponding Author

[1] P.S. Follansbee, in: Mechanical Testing, Metals Handbook, 9th ed., Vol. 8, Am. Soc. Metals, Metals Park, OH, pp.198-203 (1985).

[2] M.M. Al-Mousawi, S.R. Reid and W.F. Deans: Proc. Inst. Mech. Eng., Part C: J. Mech. Eng. Sci. Vol. 211 (1997), p.273.

[3] M.A. Meyers: Dynamic Behavior of Materials (John Wiley & Sons. Inc., New York 1994).

[4] H. Shin and J. -B. Kim, An equation for the strain rate of a specimen in the split Hopkinson pressure bar, To be published elsewhere.

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