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An inverse approach to determination of residual stress induced by shot peening of round bars

Research output: Contribution to journalArticle

  • GH Farrahi
  • SA Faghidian
  • DJ Smith
Original languageEnglish
Pages (from-to)726 - 731
Number of pages6
JournalInternational Journal of Mechanical Sciences
Volume51(9-10)
DOIs
DatePublished - Sep 2009

Abstract

In this paper an analysis is presented to determine the distribution of a residual stress field from a limited incomplete set of measurements obtained from shot-peened round steel bars. Using an Airy stress function as the primary unknown the axisymmetric stress equations are solved directly. In this new method there exists the flexibility to impose physical conditions that govern the behavior of residual stress to achieve a meaningful complete stress field. This new method aims to achieve the best agreement between the model prediction and limited measured stress components in the sense of least squares approximation. The power of this new method is demonstrated by analyzing experimental data and achieving a good agreement between the model prediction and the results obtained from residual stress measurement.

Additional information

Publisher: Elsevier

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