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Effect of strain rate on the geometry of the plastic zone near a Mode II crack tip. Parametric analysis

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Abstract

We present an approximate approach to assessment of the effect of the strain rate (γ) on the size (rp) and shape of the plastic zone near a transverse shear crack tip. The analysis is based on including the parameters of the stress—strain diagram for the material as functions of\(\dot \gamma \) in the quasistatic solution for rp. We propose a two-parameter model for taking into account the effect of the magnitude of the applied shear stresses on the geometry of the plastic zone. For a crack in mild steel, we obtain estimates of the evolution of the plastic zone as the strain rate varies within the range 10−4−103 sec−1.

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Translated from Problemy Prochnosti, No. 3, pp. 46–55, March, 1995.

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Varfolomeev, I.V., Klepaczko, J.R. Effect of strain rate on the geometry of the plastic zone near a Mode II crack tip. Parametric analysis. Strength Mater 27, 138–145 (1995). https://doi.org/10.1007/BF02209479

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  • DOI: https://doi.org/10.1007/BF02209479

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