Two Dimensions Residual Stresses Analysis Through Incremental Groove Machining Combined with Electronic Speckle Pattern Interferometry
| Autor: | Olivier Sicot, Emmanuelle Rouhaud, Guillaume Montay, Manuel François, Afaf Maras |
|---|---|
| Přispěvatelé: | Laboratoire des Systèmes Mécaniques et d'Ingénierie Simultanée (LASMIS), Institut Charles Delaunay (ICD), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2008 |
| Předmět: |
Materials science
business.industry Mechanical Engineering Aerospace Engineering Peening 02 engineering and technology 01 natural sciences 010309 optics Speckle pattern 020303 mechanical engineering & transports Optics 0203 mechanical engineering Mechanics of Materials Residual stress Surface metrology Electronic speckle pattern interferometry [SPI.MECA.MEMA]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of materials [physics.class-ph] 0103 physical sciences Stress relaxation Speckle imaging business Groove (engineering) |
| Zdroj: | Experimental Mechanics Experimental Mechanics, Society for Experimental Mechanics, 2009, 49 (4), pp.459-469. ⟨10.1007/s11340-008-9151-3⟩ Experimental Mechanics, 2009, 49 (4), pp.459-469. ⟨10.1007/s11340-008-9151-3⟩ |
| ISSN: | 1741-2765 0014-4851 |
| DOI: | 10.1007/s11340-008-9151-3 |
| Popis: | International audience; In this study a new residual stress determination method in two directions simultaneously is presented. This method is based on stresses relaxation in a groove that is machined incrementally. The residual stresses relaxation occurs simultaneously from both the depth and the length of the groove. Thus, measuring the surface strain field generated by the relaxation enables to determine the stress gradient both along the depth and the length of the groove. To measure the surface strain in a direction perpendicular to the groove, a digital speckle pattern interferometer is used. This method is suitable when the residual stress field in the structure varies in the depth as well as along the surface of the part, like for example in a welded structure. The method is tested here on an aluminium plate in which a central band has been shot peened. |
| Databáze: | OpenAIRE |
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