Sundararaghavan, Veeraraghavan ; Balasubramanian, Krishnan ; Babu, Nimmagadda Ramesh ; Rajesh, Nataraja (2005) A multi-frequency eddy current inversion method for characterizing conductivity gradients on water jet peened components NDT & E International, 38 (7). pp. 541-547. ISSN 0963-8695
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Official URL: https://doi.org/10.1016/j.ndteint.2005.01.009
Related URL: http://dx.doi.org/10.1016/j.ndteint.2005.01.009
Abstract
This paper describes a multi-frequency eddy current inversion procedure for characterizing specimens that are water jet peened. Multi-frequency inductance data was obtained by using well-characterized eddy current probes. The inversion uses a multi-layer axisymmetric finite element model as the forward model and the conductivity of each layer is found through interpolation of the inductance–conductivity data generated by the forward model. Skin depth approximation was used to isolate the integral effects of the conductivity variation on the inductance signal. Inverted conductivity profiles of the water jet peened specimens was found to resemble the predicted profiles. Information regarding the shape of residual stress gradients and relative intensities of peening were inferred from the conductivity profiles.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 141665 |
| Deposited On: | 22 Jan 2026 18:10 |
| Last Modified: | 22 Jan 2026 18:10 |
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