Coupled Modeling Approach for Laser Shock Peening of AA2198-T3: From Plasma and Shock Wave Simulation to Residual Stress Prediction
Laser shock peening (LSP) is a surface modification technique to improve the mechanical properties of metals and alloys, where physical phenomena are difficult to investigate, due to short time scales and extreme physical values. In this regard, simulations can significantly contribute to understand...
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MDPI AG
2022-01-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/12/1/107 |
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| author | Vasily Pozdnyakov Sören Keller Nikolai Kashaev Benjamin Klusemann Jens Oberrath |
| author_facet | Vasily Pozdnyakov Sören Keller Nikolai Kashaev Benjamin Klusemann Jens Oberrath |
| author_sort | Vasily Pozdnyakov |
| collection | DOAJ |
| description | Laser shock peening (LSP) is a surface modification technique to improve the mechanical properties of metals and alloys, where physical phenomena are difficult to investigate, due to short time scales and extreme physical values. In this regard, simulations can significantly contribute to understand the underlying physics. In this paper, a coupled simulation approach for LSP is presented. A global model of laser–matter–plasma interaction is applied to determine the plasma pressure, which is used as surface loading in finite element (FE) simulations in order to predict residual stress (RS) profiles in the target material. The coupled model is applied to the LSP of AA2198-T3 with water confinement, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>3</mn><mo>×</mo><mn>3</mn><mspace width="3.33333pt"></mspace><msup><mrow><mi>mm</mi></mrow><mn>2</mn></msup></mrow></semantics></math></inline-formula> square focus and 20 ns laser pulse duration. This investigation considers the variation in laser pulse energy (3 J and 5 J) and different protective coatings (none, aluminum and steel foil). A sensitivity analysis is conducted to evaluate the impact of parameter inaccuracies of the global model on the resulting RS. Adjustment of the global model to different laser pulse energies and coating materials allows us to compute the temporal pressure distributions to predict RS with FE simulations, which are in good agreement with the measurements. |
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| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T00:56:32Z |
| publishDate | 2022-01-01 |
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| series | Metals |
| spelling | doaj.art-3ba6c2af9d5a4cce994eae48b23809bf2023-11-23T14:42:27ZengMDPI AGMetals2075-47012022-01-0112110710.3390/met12010107Coupled Modeling Approach for Laser Shock Peening of AA2198-T3: From Plasma and Shock Wave Simulation to Residual Stress PredictionVasily Pozdnyakov0Sören Keller1Nikolai Kashaev2Benjamin Klusemann3Jens Oberrath4Institute of Product and Process Innovation, Leuphana University of Lüneburg, Universitätsallee 1, 21335 Lüneburg, GermanyInstitute of Materials Mechanics, Helmholtz-Zentrum Hereon, Max-Planck-Straße 1, 21502 Geesthacht, GermanyInstitute of Materials Mechanics, Helmholtz-Zentrum Hereon, Max-Planck-Straße 1, 21502 Geesthacht, GermanyInstitute of Product and Process Innovation, Leuphana University of Lüneburg, Universitätsallee 1, 21335 Lüneburg, GermanyModeling and Simulation, Department of Electric Power Engineering, South Westphalia University of Applied Science, Lübecker Ring 2, 59494 Soest, GermanyLaser shock peening (LSP) is a surface modification technique to improve the mechanical properties of metals and alloys, where physical phenomena are difficult to investigate, due to short time scales and extreme physical values. In this regard, simulations can significantly contribute to understand the underlying physics. In this paper, a coupled simulation approach for LSP is presented. A global model of laser–matter–plasma interaction is applied to determine the plasma pressure, which is used as surface loading in finite element (FE) simulations in order to predict residual stress (RS) profiles in the target material. The coupled model is applied to the LSP of AA2198-T3 with water confinement, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>3</mn><mo>×</mo><mn>3</mn><mspace width="3.33333pt"></mspace><msup><mrow><mi>mm</mi></mrow><mn>2</mn></msup></mrow></semantics></math></inline-formula> square focus and 20 ns laser pulse duration. This investigation considers the variation in laser pulse energy (3 J and 5 J) and different protective coatings (none, aluminum and steel foil). A sensitivity analysis is conducted to evaluate the impact of parameter inaccuracies of the global model on the resulting RS. Adjustment of the global model to different laser pulse energies and coating materials allows us to compute the temporal pressure distributions to predict RS with FE simulations, which are in good agreement with the measurements.https://www.mdpi.com/2075-4701/12/1/107laser shock peeningresidual stressfinite element simulationglobal modelinglaser–matter–plasma modelAA2198-T3 |
| spellingShingle | Vasily Pozdnyakov Sören Keller Nikolai Kashaev Benjamin Klusemann Jens Oberrath Coupled Modeling Approach for Laser Shock Peening of AA2198-T3: From Plasma and Shock Wave Simulation to Residual Stress Prediction Metals laser shock peening residual stress finite element simulation global modeling laser–matter–plasma model AA2198-T3 |
| title | Coupled Modeling Approach for Laser Shock Peening of AA2198-T3: From Plasma and Shock Wave Simulation to Residual Stress Prediction |
| title_full | Coupled Modeling Approach for Laser Shock Peening of AA2198-T3: From Plasma and Shock Wave Simulation to Residual Stress Prediction |
| title_fullStr | Coupled Modeling Approach for Laser Shock Peening of AA2198-T3: From Plasma and Shock Wave Simulation to Residual Stress Prediction |
| title_full_unstemmed | Coupled Modeling Approach for Laser Shock Peening of AA2198-T3: From Plasma and Shock Wave Simulation to Residual Stress Prediction |
| title_short | Coupled Modeling Approach for Laser Shock Peening of AA2198-T3: From Plasma and Shock Wave Simulation to Residual Stress Prediction |
| title_sort | coupled modeling approach for laser shock peening of aa2198 t3 from plasma and shock wave simulation to residual stress prediction |
| topic | laser shock peening residual stress finite element simulation global modeling laser–matter–plasma model AA2198-T3 |
| url | https://www.mdpi.com/2075-4701/12/1/107 |
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