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01-04-2021 | ELECTROMAGNETIC METHODS | Issue 4/2021

Russian Journal of Nondestructive Testing 4/2021

Testing Uniaxial Stresses in Steels with Allowance for Their Magnetoelastic Sensitivity

Journal:
Russian Journal of Nondestructive Testing > Issue 4/2021
Authors:
V. F. Novikov, S. M. Kulak, A. S. Parakhin

Abstract

The magnetoelastic demagnetization of a number of steels in the delivery condition under longitudinal elastic tension, transverse compression, and impact has been investigated. The estimation of the magnetoelastic sensitivity of the studied steel grades in the linear approximation is given. The possibility of determining the tensile and compressive stress in the magnetoelastic memory mode with allowance for the magnetoelastic sensitivity of the selected section of steel is considered, and a method for its determination using dosed loading (impact or compression) is proposed. It is shown that the regression equation in the form of a polynomial is in satisfactory agreement with the experimental result.

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