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Magnetic detection of high mechanical stress in iron-based materials using eddy currents and phase shift measurements

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We present a non-invasive method of detecting stress below the elastic limit in magnetic steel elements. The method, based on well-known magnetoelastic effects, relies on mechanical stress-induced permeability modulation. It… Click to show full abstract

We present a non-invasive method of detecting stress below the elastic limit in magnetic steel elements. The method, based on well-known magnetoelastic effects, relies on mechanical stress-induced permeability modulation. It does not measure absolute values and hence results in suitable in situ measurements in situations where small position or vibration changes can change absolute values.

Keywords: high mechanical; mechanical stress; stress iron; stress; magnetic detection; detection high

Journal Title: Journal of Applied Physics
Year Published: 2021

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