Results Comparison for Hat-shaped, Double-notch and Punch Testing of Split Hopkinson Shear Bar Technique
DOI:
https://doi.org/10.5614/j.eng.technol.sci.2019.51.6.5Keywords:
double-notch, hat-shaped, Hopkinson bar, punch, SHSBAbstract
The split Hopkinson shear bar (SHSB) test is a modification of the high rate-impact test using a split Hopkinson pressure bar (SHPB). The SHSB has been developed for a variety of techniques, for example, the hat-shaped (circular or flat), double-notch, and punch (with or without notch) techniques. The main purpose of this study was to compare these three techniques to determine the shear stress-shear strain of aluminum alloy 2024-T351. The study was conducted using the Abaqus/CAE software. The circular hat-shaped and punch (with and without notch) techniques used a quarter-section solid 3D model. The flat hat-shaped and double-notch techniques used a half-section solid 3D model. This study successfully tested and compared the three SHSB techniques, with a number of considerations, i.e. the same parameter values for kinetic energy, shear area and shear angle. Each technique has its own advantages and disadvantages in terms of force equilibrium, flow stress fluctuation, constant strain rate, machine-ability, ease of experiment, etc. The optimum technique among the three is the hat-shaped technique.Downloads
References
Nemat-Nasser, S., Introduction to High Strain Rate Testing, in Kuhn, H & Medlin, D, ASM Handbook: Mechanical Testing and Evaluation, 8, ASM International, pp. 427-428, 2000.
Hopkinson, J., On the Rupture of Iron Wire by a Blow, in Proceedings of the Manchester Literary and Philosophical Society, pp. 40-45, 1872.
Hopkinson, J., Further Experiments on the Rupture of Iron Wire, in Proceedings of the Manchester Literary and Philosophical Society, pp. 119-121, 1872.
Hopkinson, B., A Method of Measuring the Pressure Produced in the Detonation of High, Explosives or by the Impact of Bullets, Philosophical Transactions of the Royal Society of London. Series A, Containing Papers of a Mathematical or Physical Character, 213(497-508), pp. 437-456, 1914.
Davies, R.M. & Taylor G.I., A Critical Study of the Hopkinson Pressure Bar, Philosophical Transactions of the Royal Society of London, Series A, Mathematical and Physical Sciences, 240(821), pp. 375-457, 1948.
Kolsky, H., An Investigation of the Mechanical Properties of Materials at Very High Rates of Loading, Proceedings of the Physical Society. Section B, 62(11), pp. 676-700, 1949.
Hartmann, K-H., Kunze, H-D. & Meyer, L.W., Metallurgical Effects on Impact Loaded Materials, Shock Waves and High-Strain-Rate Phenomena in Meyers, M.A. & Murr, L.E., Metals: Concepts and Applications, Springer US, pp. 325-337, 1981.
Beatty, J.H., Meyer, L.W., Meyers, M.A. & Nemat-Nasser, S., Formation of Controlled Adiabatic Shear Bands in AISI 4340 High Strength Steel, in Meyers, M.A., Murr, L.E. & Staudhammer, K.P., Shock Wave and High-Strain-Rate Phenomena in Materials, Marcel Dekker, New York, United States, pp.645-656, 1992.
Piers, J., Verleysen, P. & Degrieck, J., The Use of Hat-Shaped Specimens for Dynamic Shear Testing, Foundations of Civil and Environmental Engineering, 11, pp. 97-111, 2008.
Peirs, J., Verleysen, P., Degrieck, J. & Coghe, F., The Use of Hat-Shaped Specimens to Study the High Strain Rate Shear Behaviour of Ti-6Al-4V, International Journal of Impact Engineering, 37(6), pp. 703-714, 2010
Dowling, A.R. The Dynamic Punching of Metals, Journal of Institute of Metals, 98, pp. 215-224, 1970.
Ferguson, W.G., Hauser, F.E. & Dorn, J.E., Dislocation Damping in Zinc Single Crystals, British Journal of Applied Physics, 18(4), pp. 411-417, 1967.
Campbell, J.D. & Ferguson, W.G., The Temperature and Strain-Rate Dependence of the Shear Strength of Mild Steel, The Philosophical Magazine: A Journal of Theoretical Experimental and Applied Physics, 21(169), pp. 63-82, 1970.
Harding, J. & Huddart, J., The Use of the Double-Notch Shear Test in Determining the Mechanical Properties of Uranium at Very High Rates of Strain, Institute of Physics, 1980.
Harding, J., High-Rate Straining and Mechanical Properties of Materials, Explosive Welding, Forming and Compaction, Blazynski T.Z., Springer Netherlands, pp. 123-158, 1983.
Gray, G.T., III, Classic Split Hopkinson Pressure Bar Testing in Kuhn, H. & Medlin, D., ASM Handbook: Mechanical Testing and Evaluation, 8, ASM International, pp. 462-476, 2000.
Kariem, M.A., Reliable Materials Performance Data from Impact Testing, Doctor of Philosophy, Faculty of Engineering and Industrial Sciences, Swinburne University of Technology, Hawthorn, 2012.
Johnson, G.R. & Cook, W.H., A Constitutive Model and Data for Metals Subjected to Large Strains, High Strain Rates, and High Temperatures, in Proceeding of the 7th International Symposium in Ballistics, pp. 541-547, 1983.
Edwards, N.J., Kariem, M.A., Rashid, R.A.R., Cimpoeru S.J., Lu G. & Ruan D., Dynamic Shear Testing of 2024 T351 Aluminium at Elevated Temperature, Materials Science and Engineering: A, 754, pp. 99-111, 2019.
Lifshitz, J.M. & Leber, H., Data Processing in the Split Hopkinson Pressure Bar Tests, International Journal of Impact Engineering, 15(6), pp. 723-733, 1994.
Kariem, M., Ruan, D., Beynon, J. & Prabowo, D., Mini Round-Robin Test on the Split Hopkinson Pressure Bar, Journal of Testing and Evaluation, 46(2), pp. 457-468, 2018.
Kariem, M.A., Santiago R.C., Govender R., Shu D.W., Ruan D., Nurick G., Alves, M., Lu, G. & Langdon, G.S., Round-Robin Test of Split Hopkinson Pressure Bar, International Journal of Impact Engineering, 126, pp. 62-75, 2019.