Assessing Shot-Peening Residual Stresses by Using the Incremental Hole-Drilling Technique and Laser Interferometry (DSPI)
| Autor: | António Castanhola Batista, Armando Albertazzi, Luís Manuel de Jesus Coelho, Maria José Marques, Joao P. Nobre, Matias Viotti, Miguel Alfonso Oliveira |
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| Rok vydání: | 2014 |
| Předmět: |
Hole drilling method
Diffraction Materials science Shot-peening business.industry General Engineering Drilling Shot peening Hole-drilling method Residual stresses Speckle pattern Interferometry Optics Residual stress Relaxation (physics) Laser interferometry business Digital speckle pattern interferometry (DSPI) |
| Zdroj: | Repositório Científico de Acesso Aberto de Portugal Repositório Científico de Acesso Aberto de Portugal (RCAAP) instacron:RCAAP |
| ISSN: | 1662-8985 |
| DOI: | 10.4028/www.scientific.net/amr.996.269 |
| Popis: | Artigo em acesso restrito. 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. |
| Databáze: | OpenAIRE |
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