Abstract
High-speed video recording has been used in the in situ investigation of the spatio-temporal bands of a macroscopically localized deformation in the unsteady plastic flow of an Al-Mg alloy subjected to a constant stress increase rate. It is shown that the main mechanism of the development of deformation jumps is the cascade multiplication of the Savart-Masson deformation bands. This mechanism is compared to the discontinuous deformation models.
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Original Russian Text © A.A. Shibkov, A.E. Zolotov, 2009, published in Pis’ma v Zhurnal Éksperimental’noĭ i Teoreticheskoĭ Fiziki, 2009, Vol. 90, No. 5, pp. 412–417.
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Shibkov, A.A., Zolotov, A.E. Nonlinear dynamics of the spatio-timporal pattern of a macroscopically localized deformation. Jetp Lett. 90, 370–375 (2009). https://doi.org/10.1134/S0021364009170123
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DOI: https://doi.org/10.1134/S0021364009170123