Abstract
Methods of evaluating instrumented Charpy-impact tests have been described and applied to the determination of the dynamic-fracture toughness,K 1d, of A533B steel. Measurements were made over a range of temperature (−197°C to+100° C) and at loading rates,\(\dot K{\mathbf{ }} \simeq {\mathbf{ }}10^{6{\mathbf{ }}} ksi{\mathbf{ }}\sqrt i /s{\mathbf{ }}(1.1{\mathbf{ }}x{\mathbf{ }}10^{6{\mathbf{ }}} MN/m^{3/2} /s)\). The results have been compared to those obtained by other workers from slower tests on much thicker specimens. The work leads to a conclusion as to the extent to which higher strain-rate testing can replace specimen size in obtaining ASTM valid results.
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Glover, A.P., Johnson, F.A. & Radon, J.C. Dynamic-fracture toughness of A533B steel. Experimental Mechanics 17, 172–178 (1977). https://doi.org/10.1007/BF02330993
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DOI: https://doi.org/10.1007/BF02330993