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On the calibration of the electrical potential technique for monitoring crack growth using finite element methods

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Abstract

Finite element analysis procedures are utilized to provide theoretical calibration curves for the electrical potential crack-monitoring system as applied to single-edge-notch (SEN) and compact tension (CT) fracture specimens. The results are compared to existing calibrations for such test piece geometries derived using experimental, electrical analog and analytical (conformal mapping) procedures.

Résumé

Des procédures d'analyse par éléments finis sont utilisées pour fournir la courbe de calibrage théorique dans le cas d'un système d'avertissement de fissuration par potentiel électrique tel que appliqué dans les éprouvettes à entaille simple latérale et dans les éprouvettes de traction compactes utilisées pour l'étude de la rupture. Les résultats sont comparés avec les calibrages existants pour des géométries d'éprouvettes d'essai de ce type, qui dérivent de procédures expérimentales analogiques électriques et analytiques par représentation conforme.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Massachusetts Institute of Technology, 02139, Cambridge, Massachusetts, USA

    R. O. Ritchie & K. J. Bathe

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  1. R. O. Ritchie
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  2. K. J. Bathe
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Ritchie, R.O., Bathe, K.J. On the calibration of the electrical potential technique for monitoring crack growth using finite element methods. Int J Fract 15, 47–55 (1979). https://doi.org/10.1007/BF00115908

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  • DOI: https://doi.org/10.1007/BF00115908

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