Application of Electro-Plasticity Effect and Shearography Method for Non-Destructive Determination of Residual Stresses

Keywords

residual stresses, high-density current pulses, electroplasticity effect, laser interferometry, shearography, interferometer

Abstract

The proposed technique introduces an innovative approach for the non-destructive determination of residual stresses by utilizing high-density current pulses (HDCP) along with the shearography method. During the testing of known stress state samples, graphs showing the dependence of ∂w/∂x on the stress state were acquired. Using this data as a foundation, algorithms were developed to determine residual stresses in elements of structures.

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