This article is cited in 1 paper

Threshold modes of dynamic deformation of 1565 aluminum alloy

A. K. Divakov^a, N. I. Zhigacheva^a, G. V. Konovalov^a, Yu. I. Metcheryakov^a, E. P. Osokin<sup>b

a</sup> Institute of Problems of Mechanical Engineering, Russian Academy of Sciences, St. Petersburg
^b Prometei Central Research Institute of Structural Materials, St. Petersburg

Abstract: To identify threshold structuring regimes, two series of tests of 1565 aluminum alloy were conducted in the speed range of 250–750 m/s: impact tests under uniaxial deformation and penetration of impactors. Comparison of the results of both series of tests enables the separation of the drag in the interaction of an elongated impactor with a target from the friction resistance with its side part. The structuring scale changes twice on the lateral surface of the cavity–at speeds of 400 and 623.3 m/s–and the second structuring threshold almost coincides with the same threshold under loading under uniaxial deformation.

Received: 04.12.2018
Revised: 04.12.2018
Accepted: 06.12.2018

DOI: 10.21883/PJTF.2019.05.47395.17624

 English version: Technical Physics Letters, 2019, 45:3, 218–220

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