Abstract
The present paper introduces a new technique which combines rotation disk and traditional Kolsky bar (often termed as split-Hopkinson bar). This technique can be employed to study the tension stress-strain relations and tension-unloading-tension strain-rate history effects of materials in the strain rate range from 102–103s−1. The rise time of the incident wave is as short as 15 μs because of the particular design. An attempt is made to estimate strain error caused by the thread connection between the specimen and the bars, and stress error due to the mismatch of the cross section of the specimen and bars. A short rise-time incident wave appears to be most advantageous in view of maintaining the accuracy of the stress-strain curve obtained near the initiation. Preliminary tests are performed on the instrument. Comments are made for this design configuration.
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References
Kolsky, H., “An Investigation of the Mechanical Properties of Materials at Very High Rates of Loading,”Proc. Phys. Soc. London,62B,676–700 (1949).
Chiddister, J. L. andMalvern, L.E., “Compression Impact Testing of Aluminum at Elevated Temperatures,”Experimental Mechanics,3,81–90 (April 1963).
Griffiths, L.J., Parry, D.J. and Worthington, R.P., “A Comparison of Optical and Strain Gauge Techniques in the Determination of the Dynamic Mechanical Behavior of Carbon-Fiber Composite Using a Split Hopkinson Pressure Bar,” Mechanical Properties at High Rates of Strain, ed. J. Harding, Inst. Phys. Conf. Ser. No. 47,62–70 (1979).
Klepaczko, J. and Malinowski, J.Z., “Dynamic Frictional Effects as Measured from the Split Hopkinson Bar,” IUTAM Symp., High Velocity Deformation of Solids, eds. K. Kawata and J. Shioiri, 401–416 (1977).
Davies, E. D. H. andHunter, S. C., “The Dynamic Compression Testing of Solids by the Method of the Split Hopkinson Pressure Bar,”J. Mech. Phys. Solids,11,155–179 (1963).
Malinoeski, J. Z. andKlepaczko, J. Z., “A Unified Analytical and Numerical Approach to Specimen Behavior in the Split Hopkinson Bar,”Int. J. Mech. Sci.,28,381–391 (1986).
Duffy, J., Campbell, J. D. andHawley, R. H., “On the Use of a Torsional Split Hopkinson Bar to Study Rate Effects in 1100-0 Aluminum,”J. Appl. Mech. Ser. E,93 (3),83–91 (1971).
Harding, J. andWelsh, L. M., “Tensile Testing of Materials at Impact Rates of Strain,”J. Mech. Eng. Sci.,2,88–96 (1960).
Hauser, F. E., “Technique for Measuring Stress-strain Relation at High Strain Rate,”Experimental Mechanics,6 (8),395–402 (Aug. 1966).
Lindholm, U. S. andYeakly, L. M., “High Strain-rate Testing: Tension and Compression,”Experimental Mechanics,8 (1),1–9 (Jan 1968).
Kawata, K., Hashimoto, S., Kurokawa, K. and Kanayama, N., “A New Testing Method for the Characterization of Materials in High-Velocity Tension,” Mechanical Properties at High Rates of Strain, ed. J. Harding, Inst. Phys. Conf. Ser. No. 47,71–80 (1979).
Nicholas, T., “Tensile Testing of Materials at High Rates of Strain,”Experimental Mechanics,21 (5),17–185 (May 1981).
Eleiche, A. M., “Design and Reformation of a Dynamic Testing System with Reverse loading Capacity,” Proc. Int. Symp. on Intense Dynamic loading and Its Effects, Beijing, 614–618 (1986).
Staab, G.H. andGilat, A., “A Direct-tension Split Hopkinson Bar for High Strain-rate Testing,”Experimental Mechanics,31,232–235 (Sept. 1991).
Duffy, J., “J. D. Cambell Memorial Lecture: Testing Techniques and Material Behavior at High Rates of Strain,” Mechanical Properties at High Rates of Strain, ed. J. Harding, Inst. Phys. Conf. Ser. No. 47,1–15 (1979).
Lindholm, U. S., “Some Experiments with the Split Hopkinson Pressure Bar,”J. Mech. Phys. Solids,12 (5),317–335 (1964).
Nicholas, T., “Strain-rate and Strain-rate History Effects in Several Metals in Torsion,”Experimental Mechanics,11 (8),370–374 (Aug. 1971).
Senseny, P. E., Duffy, J. andHawley, R. H., “Experiments on Strain Rate History and Temperature Effects During the Plastic Deformation of Close-Packed Metals,”J. Appl. Mech.,45,60–66 (March 1978).
Ross, C. A., Kuennen, S. T. and Tedesco, J. W. “Experimental and Numerical Analysis of High Strain-Rate Concrete Tensile Tests,” Micro-Mechanics of Failure of Quasi-Brittle Materials, eds. S.P. Shah, S.E. Swartz, and M.L. Wang, Elsevier, 353–364 (1990).
Zukas, J.A., Nicholas, T., Swift, H.F., Greszczuk, L.B. andCurran, D.R., Impact Dynamics, John Wiley & Sons, New York (1982).
Kolsky, H., Stress Waves in Solids, Oxford, Clarendon Press (1953).
Johnson, W., Impact Strength of Materials, Edward Arnold (1972).
Ross, C.A., Cook, W.H. andWilson, L.L., “Dynamic Tensile Tests of Composite Materials Using a Split-Hopkinson Pressure Bar,”Experimental Techniques,8,30–33 (Nov. 1984).
Cross, L.A., Bless, S.J., Rajendren, A.M., Strader, E.A. andDawicke, D.S., “New Technique to Investigate Necking in a Tensile Hopkinson Bar,”Experimental Mechanics,24,184–186 (Sept. 1984).
Gong, J.C., Malvern, L.E. andJenkins, D.A., “Dispersion Investigation in the Split Hopkinson Pressure Bar,”ASME, J. Eng. Mat. Tech.,112,309–314 (July 1990).
Love, A.E.H., A Treatise on the Mathematical Theory of Elasticity, Dover, Fourth Ed., 287–288 (1944).
Bancroft, D., “The Velocity of Longitudinal Waves in Cylindrical Bars,”Phys. Rev.,59,588–593 (April 1941).
Follansbee, P. S. andFrantz, C., “Wave Propagation in the Split Hopkinson Pressure Bar,”ASME J. Eng. Mat. Tech.,105,61–66 (Jan. 1983).
Additional information
M. Li (Student Member of SEM), presently at the Department of Aerospace Engineering, Mechanics and Engineering Science, University of Florida, Gainesville, FL 32611, was Research Associate; R. Wang (formerly A.J. Wang) is Professor; and M.-B. Han is Associate Professor, Department of Mechanics, Peking University, Beijing 100871, P.R. China.
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Li, M., Wang, R. & Han, MB. A Kolsky bar: Tension, tension-tension. Experimental Mechanics 33, 7–14 (1993). https://doi.org/10.1007/BF02322543
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DOI: https://doi.org/10.1007/BF02322543