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Residual-stress determination through combined use of holographic interferometry and blind-hole drilling

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Abstract

Holographic interferometry is used to determine in-plane radial displacements due to release of residual stresses by hole drilling. A method is derived for relating radial displacements measured in three directions of illumination to the state of residual stress, analogous to relations used in the conventional strain-rosette technique. Residual stress is produced by an interference fit of two circular tubes. Agreement between stress determined holographically with a computed value and with that determined by the conventional technique is good. Advantages of the holographic technique in overcoming various shortcomings of the conventional technique are discussed. A modification of the holographic technique involving data collection in only two directions of illumination is described.

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Authors and Affiliations

  1. Mechanical Engineering Department, Stanford University, 94305, Stanford, CA

    D. V. Nelson (Associate Professor)

  2. Advanced Products, Holography Division, Newport Corporation, 92708, Fountain Valley, CA

    J. T. McCrickerd (SEM Member) is Managen)

Authors
  1. D. V. Nelson
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  2. J. T. McCrickerd
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Nelson, D.V., McCrickerd, J.T. Residual-stress determination through combined use of holographic interferometry and blind-hole drilling. Experimental Mechanics 26, 371–378 (1986). https://doi.org/10.1007/BF02320153

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  • DOI: https://doi.org/10.1007/BF02320153

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