Novel Confinement Possibility for Laser Shock: Use of Flexible Polymer Confinement at 1064 nm Wavelength
Through the years, laser shock peening became a treatment of choice in the aerospace industry to prolong the life of certain critical pieces. Water flow is commonly used as a confinement to improve the process capability but some applications cannot allow for water presence in the area of interest....
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MDPI AG
2021-09-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/11/9/1467 |
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| author | Corentin Le Bras Alexandre Rondepierre Mohammad Ayad Yann Rouchausse Matthieu Gervais Stéphane Valadon Laurent Berthe |
| author_facet | Corentin Le Bras Alexandre Rondepierre Mohammad Ayad Yann Rouchausse Matthieu Gervais Stéphane Valadon Laurent Berthe |
| author_sort | Corentin Le Bras |
| collection | DOAJ |
| description | Through the years, laser shock peening became a treatment of choice in the aerospace industry to prolong the life of certain critical pieces. Water flow is commonly used as a confinement to improve the process capability but some applications cannot allow for water presence in the area of interest. In a previous article, an alternative to the water confinement was presented, a flexible polymer confinement was used and demonstrated the production of pressures equivalent to the water configuration treatment. However, laser parameters have been restricted to a wavelength in the visible range at 532 nm. In this paper, the study is extended to 1064 nm which is commonly used in LSP applications and with two different pulse durations. A 1064 nm near infra-red laser is used to do pressure characterization of shots with polymer confinement through Velocity Interferometer System for Any Reflector (VISAR) measurements coupled with Finite Element Modelling on Abaqus software. The results show that the pressures produced by the confinement is slightly lower with the 1064 nm wavelength, similar to what is observed with the classic water confined regime when switching from 532 nm to a near infra-red wavelength. Nevertheless, the high level of pressure produced by laser shock under the polymer confinement configuration allows for the treatment of common types of metal alloys used in the aerospace industry. Although the use of such a confinement has yet to be applicable to peening setups, it has already uses in some single shot configurations such as LasAT where it allows the avoidance of the water flow optimization. |
| first_indexed | 2024-03-10T07:26:38Z |
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| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T07:26:38Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-f9b58110c4ab4a4385c6ea1cd1930edd2023-11-22T14:14:23ZengMDPI AGMetals2075-47012021-09-01119146710.3390/met11091467Novel Confinement Possibility for Laser Shock: Use of Flexible Polymer Confinement at 1064 nm WavelengthCorentin Le Bras0Alexandre Rondepierre1Mohammad Ayad2Yann Rouchausse3Matthieu Gervais4Stéphane Valadon5Laurent Berthe6Laboratoire PIMM, UMR 8006, ENSAM, CNRS, CNAM, HESAM, 151 boulevard de l’Hôpital, 75013 Paris, FranceLaboratoire PIMM, UMR 8006, ENSAM, CNRS, CNAM, HESAM, 151 boulevard de l’Hôpital, 75013 Paris, FranceLaboratoire PIMM, UMR 8006, ENSAM, CNRS, CNAM, HESAM, 151 boulevard de l’Hôpital, 75013 Paris, FranceLaboratoire PIMM, UMR 8006, ENSAM, CNRS, CNAM, HESAM, 151 boulevard de l’Hôpital, 75013 Paris, FranceLaboratoire PIMM, UMR 8006, ENSAM, CNRS, CNAM, HESAM, 151 boulevard de l’Hôpital, 75013 Paris, FranceAirbus Operation S.A.S, 316 route de Bayonne-B.P. D4101, CEDEX 9, 31060 Toulouse, FranceLaboratoire PIMM, UMR 8006, ENSAM, CNRS, CNAM, HESAM, 151 boulevard de l’Hôpital, 75013 Paris, FranceThrough the years, laser shock peening became a treatment of choice in the aerospace industry to prolong the life of certain critical pieces. Water flow is commonly used as a confinement to improve the process capability but some applications cannot allow for water presence in the area of interest. In a previous article, an alternative to the water confinement was presented, a flexible polymer confinement was used and demonstrated the production of pressures equivalent to the water configuration treatment. However, laser parameters have been restricted to a wavelength in the visible range at 532 nm. In this paper, the study is extended to 1064 nm which is commonly used in LSP applications and with two different pulse durations. A 1064 nm near infra-red laser is used to do pressure characterization of shots with polymer confinement through Velocity Interferometer System for Any Reflector (VISAR) measurements coupled with Finite Element Modelling on Abaqus software. The results show that the pressures produced by the confinement is slightly lower with the 1064 nm wavelength, similar to what is observed with the classic water confined regime when switching from 532 nm to a near infra-red wavelength. Nevertheless, the high level of pressure produced by laser shock under the polymer confinement configuration allows for the treatment of common types of metal alloys used in the aerospace industry. Although the use of such a confinement has yet to be applicable to peening setups, it has already uses in some single shot configurations such as LasAT where it allows the avoidance of the water flow optimization.https://www.mdpi.com/2075-4701/11/9/1467laser shock peeningpolymerspolymer confinementVISAR measurementfinite element method |
| spellingShingle | Corentin Le Bras Alexandre Rondepierre Mohammad Ayad Yann Rouchausse Matthieu Gervais Stéphane Valadon Laurent Berthe Novel Confinement Possibility for Laser Shock: Use of Flexible Polymer Confinement at 1064 nm Wavelength Metals laser shock peening polymers polymer confinement VISAR measurement finite element method |
| title | Novel Confinement Possibility for Laser Shock: Use of Flexible Polymer Confinement at 1064 nm Wavelength |
| title_full | Novel Confinement Possibility for Laser Shock: Use of Flexible Polymer Confinement at 1064 nm Wavelength |
| title_fullStr | Novel Confinement Possibility for Laser Shock: Use of Flexible Polymer Confinement at 1064 nm Wavelength |
| title_full_unstemmed | Novel Confinement Possibility for Laser Shock: Use of Flexible Polymer Confinement at 1064 nm Wavelength |
| title_short | Novel Confinement Possibility for Laser Shock: Use of Flexible Polymer Confinement at 1064 nm Wavelength |
| title_sort | novel confinement possibility for laser shock use of flexible polymer confinement at 1064 nm wavelength |
| topic | laser shock peening polymers polymer confinement VISAR measurement finite element method |
| url | https://www.mdpi.com/2075-4701/11/9/1467 |
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