Prediction of fracture characteristics of metals from high-frequency test data |
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Authors: | T Yu Yakovleva L E Matokhnyuk |
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Affiliation: | (1) Pisarenko Institute of Problems of Strength, National Academy of Sciences of Ukraine, Kiev, Ukraine |
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Abstract: | A method is proposed for the prediction of cyclic crack resistance characteristics of metallic materials under low-frequency
loading from high-frequency test data, which is based on a model of development of local plastic deformation regions during
the accumulation of fatigue damages and fatigue crack growth with allowance for cyclic loading rate. We performed a comparative
analysis of the results of prediction of fatigue fracture diagrams with test data for VT22, VT18U, VNS-25, and AMg6N alloys
in a frequency range of 20 Hz–10 kHz.
Report on International Conference “Dynamics, Strength, and Life of Machines and Structures” (1–4 November 2005, Kiev, Ukraine).
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Translated from Problemy Prochnosti, No. 2, pp. 121–128, March–April, 2007. |
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Keywords: | fatigue loading frequency plastic deformation correlation factor |
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