Abstract
The dynamic response of sheet metals at high strain rate is investigated with a tensile split Hopkinson bar test using plate type specimens. The tension split Hopkinson bar inevitably causes some errors in the strain at grips with the plate type specimens, since the grip and specimens disturb the one-dimensional wave propagation in bars. To validate the experiment, the level of error induced from the grips is estimated by comparing the waves acquired from experiments with the Pochhammer-Chree solution. The optimum geometry of the specimen is determined to minimize the loading equilibrium error. High strain rate tensile tests are then performed with auto-body sheet metals in order to construct their appropriate constitutive models for use in crash-worthiness evaluation.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Kolsky, H., Stress Waves in Solids, Dover Publications, New York, 41–98 (1963).
Follansbee, P. S., “The Hopkinson Bar,” in Metal Handbook 9th Edition,Vol. 8,Mechanical Testing, American Society for Metals, 198–203 (1978).
Li, M., Wang, R., andHan, M. B., “A Kolsky Bar: Tension, Tension-tension,” EXPERIMENTAL MECHANICS,33,7–14 (1993).
Kang, W. J., Cho, S. S., Huh, H., andChung, D. T., “High Strain-rate Tensile Test of Sheet Metals with a New Tension Split Hopkinson Bar,”Trans. KSME,21 (12),2209–2219 (1997).
Kang, W. J., Cho, S. S., Huh, H., and Chung, D. T., “Identification of Dynamic Behavior of Sheet Metals for an Auto-Body with Tension Split Hopkinson Bar,” SAE 981010 (1998).
Regazzoni, G., Johnson, J. N., andFollansbee, P. S., “Theoretical Study of the Dynamic Tensile Test,”Journal of Applied Mechanics,53,519–528 (1986).
Lindholm, U. S. andYeakley, L. M., “High Strain-rate Testing: Tension and Compression,” EXPERIMENTAL MECHANICS,8,1–9 (1968).
Nicholas, T., “Tensile Testing of Materials at High Rates of Strain,” EXPERIMENTAL MECHANICS,21,177–185 (1981).
Ogawa, K., “Impact-tension Compression Test by using a Split-Hopkinson Bar,” EXPERIMENTAL MECHANICS,24,81–85 (1984).
Staab, G. H. andGilat, A., “A Direct-tension Split Hopkinson Bar for High Strain-rate Testing,” EXPERIMENTAL MECHANICS,31,232–235 (1991).
Zhao, H. andGary, G., “The Testing and Behavior Modeling of Sheet Metals at Strain Rates from 10 −4 to 10 4 s −1,”Materials Science and Engineering,A207,46–50 (1996).
Kang, W. J., Cho, S. S., Huh, H., andChung, D. T., “Modified Johnson-Cook Model for Dynamic Behavior of Sheet Metals for Auto-body Crash-worthiness,”Int. J. Vehicle Design,21,424–435 (1999).
Johnson, G. R. and Cook, W. H., “A Constitutive Model and Data for Metals Subjected to Large Strains, High Strain Rates and High Temperatures,” in Proceedings of the Seventh International Symposium on Ballistics, The Hague, The Netherlands, 541–547 (1983).
Steinberg, D. J., Cochran, S. G., andGuinan, M. W., “A Constitutive Model for Metals Applicable at High-strain Rate,”Journal of Applied Physics,51 (3),1498–1504 (1980).
Zerilli, F. J. andArmstrong, R. W., “Dislocation-mechanics-based Constitutive Relations for Material Dynamics Calculation,”Journal of Applied Physics,61 (5),1816–1825 (1987).
Follansbee, P. S. andFrantz, C., “Wave Propagation in the Split Hopkinson Pressure Bar,”Journal of Engineering Materials Technology, ASME Transactions,105,61–66 (1983).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Huh, H., Kang, W.J. & Han, S.S. A tension split Hopkinson bar for investigating the dynamic behavior of sheet metals. Experimental Mechanics 42, 8–17 (2002). https://doi.org/10.1007/BF02411046
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF02411046