Abstract
Impact tests were carried out on plain concrete beams, 100 mm × 125 mm in cross-section and 1400 mm long, using an instrumented drop weight impact machine. The machine, capable of dropping a 345 kg mass through heights of up to 2.3 m, had strain gauges attached to the striking end of the hammer, and also to one of the support anvils. In addition, in order to record the beam response during the impact, three accelerometers were mounted along the length of the beam. Normal strength and high strength concretes were tested. For three different drop heights, the energy lost by the hammer was compared to the energy gained by the beam in various forms. It was found that up to the peak load, the energy gained by the beam was only a small percentage of the energy lost by the hammer. However, by the end of the impact event, most of the energy lost by the hammer could be accounted for.
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References
D.A. Abrams, “Effect of Rate of Application of Load on the Compressive Strength of Concrete,” Proceedings, ASTM, V. 17, part 2, 1917, pp. 364–367.
D. Watstein, “Effect of Straining Rate on the Compressive Strength and Elastic Properties of Concrete,” Journal of the American Concrete Institute, V. 49, No. 8, 1953, pp. 729–756.
B.P. Hughes and R. Gregory, “Concrete Subjected to High Rates of Loading in Compression,” Magazine of Concrete Research, V. 24, No. 78, 1972, pp. 25–36.
W. Suaris and S.P. Shah, “Properties of Concrete Subjected to Impact,” Journal of the Structural Division, ASCE, V. 109, No. 7, 1983, pp. 1727–1741.
A.J. Zielinsky and H.W. Reinhardt, “Stress Strain Behaviour of Concrete and Mortar at High Rates of Tensile Loading,” Cement and Concrete Reserach, V. 12, No. 3, 1982, pp. 309–319.
R.C. Lueth, “An Analysis of Charpy Impact Testing as Applied to Cemented Carbide,” Instrumented Impact Testing, ASTM STP 563, American Society for Testing and Materials, 1974, pp. 166–179.
H. Abe, H.C. Chandan and R.C. Bradt, “Low Blow Charpy Impact of Silicon Carbides,” Bulletin of the American Ceramic Society, V. 57, No. 6, 1978, pp. 587–595.
A. Bentur, S. Mindess and N. Banthia, “The Behaviour of Concrete Under Impact Loading: Experimental Procedures and Method of Analysis,” Materials and Structures (RILEM), in press.
S. Mindess and A. Bentur, “A Preliminary Study of the Fracture of Concrete Beams Under Impact Loading,” Cement and Concrete Research, V. 15, No. 3, 1985, pp. 474–484.
N. Banthia, S. Mindess and A. Bentur, “Impact Behaviuor of Concrete Beams,” Materials and Structures (RILEM), accepted for publication.
W.L. Server, “Impact Three Point Bend Testing for Notched and Pre-Cracked Specimens,” Journal of Testing and Evaluation, V. 6, No. 1, 1978, pp. 29–34.
W. Suaris and S.P. Shah, “Inertial Effects in Instrumented Impact Testing of Cementitious Composites,” Journal of Cement, Concrete and Aggregate, 1982, pp. 78–83.
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© 1989 Springer-Verlag New York Inc.
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Banthia, N.P., Mindess, S., Bentur, A. (1989). Energy Balance in Instrumented Impact Tests on Plain Concrete Beams. In: Shah, S.P., Swartz, S.E. (eds) Fracture of Concrete and Rock. Springer, New York, NY. https://doi.org/10.1007/978-1-4612-3578-1_3
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DOI: https://doi.org/10.1007/978-1-4612-3578-1_3
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