Assessing Shot-Peening Residual Stresses by Using the Incremental Hole-Drilling Technique and Laser Interferometry (DSPI)

João P. Nobre; Miguel Oliveira; Armando Albertazzi; Matias Viotti; António Castanhola Batista; Luís Coelho; Maria J. Marques

doi:10.4028/www.scientific.net/AMR.996.269

Paper Titles

Numerical Reconstruction of Residual Stress Fields from Limited Measurements
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Plasticity and Stress Heterogeneity Influence on Mechanical Stress Relaxation Residual Stress Measurements
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Residual Stress Measurement with Laser-Optical and Mechanical Methods
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Application of the Incremental Hole-Drilling Method for the Determination of Residual Stresses in Glass-Fiber Reinforced Composites
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Assessing Shot-Peening Residual Stresses by Using the Incremental Hole-Drilling Technique and Laser Interferometry (DSPI)
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Combining XRD with Hole-Drilling Method in Residual Stress Gradient Analysis of Laser Hardened C45 Steel
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Incremental Hole-Drilling Method Vs. Thin Components: A Simple Correction Approach
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Influence of Gradients in the Elastic Anisotropy on the Reliability of Residual Stresses Determined by the Hole Drilling Method
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Residual Stress Measurement on Large Shafts
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 996Assessing Shot-Peening Residual Stresses by Using...

Assessing Shot-Peening Residual Stresses by Using the Incremental Hole-Drilling Technique and Laser Interferometry (DSPI)

Abstract:

The incremental hole-drilling technique was applied to determine residual stress profiles in shot-peened steel layers. The accuracy of using an enhanced Digital Speckle Pattern Interferometry technique for measuring the strain relaxation arising around the drilled holes and, consequently, the in-depth residual stress distribution induced by shot-peening, was evaluated. The experimental results were systematically compared with those determined using standard electric strain-gauges. The X-ray diffraction technique was chosen as reference due to its high accuracy to determine shot-peening residual stresses.

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Periodical:

Advanced Materials Research (Volume 996)

Pages:

269-276

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.996.269

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Online since:

August 2014

Authors:

João P. Nobre*, Miguel Oliveira, Armando Albertazzi, Matias Viotti, António Castanhola Batista, Luís Coelho, Maria J. Marques

Keywords:

Digital Speckle Pattern Interferometry (DSPI), Hole-Drilling Method, Laser Interferometry, Residual Stress, Shot-Peening

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Creative Commons CC BY 4.0

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* - Corresponding Author

References

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