Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Sören Keller"'
Publikováno v:
Journal of Materials Research and Technology, Vol 28, Iss , Pp 1975-1989 (2024)
This paper addresses the identification of Johnson-Cook material model parameters for the simulation of high strain rate processes such as laser shock peening. A combined numerical and experimental approach is described for the identification of the
Externí odkaz:
https://doaj.org/article/1694af916df34c4aaf05af07b9673df4
Publikováno v:
Metals, Vol 12, Iss 1, p 107 (2022)
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, simu
Externí odkaz:
https://doaj.org/article/3ba6c2af9d5a4cce994eae48b23809bf
Publikováno v:
Metals, Vol 9, Iss 6, p 655 (2019)
Laser Peening (LP) is a surface modification technology that can induce high residual stresses in a metallic material. The relation between LP process parameters, in particular laser sequences, as well as pulse parameters and the resulting residual s
Externí odkaz:
https://doaj.org/article/801a7ae3c4d0484c884342b31bce34a0
Autor:
Siva Teja Sala, Sören Keller, Sergey Chupakhin, Dominik Pöltl, Benjamin Klusemann, Nikolai Kashaev
Publikováno v:
Sala, S T, Keller, S, Chupakhin, S, Pöltl, D, Klusemann, B & Kashaev, N 2022, ' Effect of laser peen forming process parameters on bending and surface quality of Ti-6Al-4V sheets ', Journal of Materials Processing Technology, vol. 305, 117578 . https://doi.org/10.1016/j.jmatprotec.2022.117578
Sala, S.; Keller, S.; Chupakhin, S.; Pöltl, D.; Klusemann, B.; Kashaev, N.: Effect of laser peen forming process parameters on bending and surface quality of Ti-6Al-4V sheets. In: Journal of Materials Processing Technology. Vol. 305 (2022) 117578. (DOI: /10.1016/j.jmatprotec.2022.117578)
Sala, S.; Keller, S.; Chupakhin, S.; Pöltl, D.; Klusemann, B.; Kashaev, N.: Effect of laser peen forming process parameters on bending and surface quality of Ti-6Al-4V sheets. In: Journal of Materials Processing Technology. Vol. 305 (2022) 117578. (DOI: /10.1016/j.jmatprotec.2022.117578)
Laser peen forming (LPF) is a metal forming process that utilizes laser-induced mechanical shock waves to form desired shapes or modify bent structures. The present work focuses on the applicability of LPF to Ti-6Al-4V sheets, to identify an optimal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::51771444489d947bd6a5b5c0219b08ab
https://pure.leuphana.de/ws/files/22245886/repo_21949934_oa_by.pdf
https://pure.leuphana.de/ws/files/22245886/repo_21949934_oa_by.pdf
Publikováno v:
Seiler, M, Keller, S, Kashaev, N, Klusemann, B & Kästner, M 2021, ' Phase-field modelling for fatigue crack growth under laser shock peening-induced residual stresses ', Archive of Applied Mechanics, vol. 91, no. 8, pp. 3709-3723 . https://doi.org/10.1007/s00419-021-01897-2
Seiler, M.; Keller, S.; Kashaev, N.; Klusemann, B.; Kästner, M.: Phase-field modelling for fatigue crack growth under laser shock peening-induced residual stresses. In: Archive of Applied Mechanics. Vol. 91 (2021) 8, 3709-3723. (DOI: /10.1007/s00419-021-01897-2)
Seiler, M.; Keller, S.; Kashaev, N.; Klusemann, B.; Kästner, M.: Phase-field modelling for fatigue crack growth under laser shock peening-induced residual stresses. In: Archive of Applied Mechanics. Vol. 91 (2021) 8, 3709-3723. (DOI: /10.1007/s00419-021-01897-2)
For the fatigue life of thin-walled components, not only fatigue crack initiation, but also crack growth is decisive. The phase-field method for fracture is a powerful tool to simulate arbitrary crack phenomena. Recently, it has been applied to fatig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5387bde6df73e25c52b1614cf84cb4de
https://doi.org/10.1007/s00419-021-01897-2
https://doi.org/10.1007/s00419-021-01897-2
Publikováno v:
Pozdnyakov, V, Keller, S, Kashaev, N, Klusemann, B & Oberrath, J 2022, ' Coupled Modeling Approach for Laser Shock Peening of AA2198-T3 : From Plasma and Shock Wave Simulation to Residual Stress Prediction ', Metals, vol. 12, no. 1, 107 . https://doi.org/10.3390/met12010107
Metals, Vol 12, Iss 107, p 107 (2022)
Pozdnyakov, V.; Keller, S.; Kashaev, N.; Klusemann, B.; Oberrath, J.: Coupled Modeling Approach for Laser Shock Peening of AA2198-T3: From Plasma and Shock Wave Simulation to Residual Stress Prediction. In: Metals. Vol. 12 (2022) 1, 107. (DOI: /10.3390/met12010107)
Metals; Volume 12; Issue 1; Pages: 107
Metals, Vol 12, Iss 107, p 107 (2022)
Pozdnyakov, V.; Keller, S.; Kashaev, N.; Klusemann, B.; Oberrath, J.: Coupled Modeling Approach for Laser Shock Peening of AA2198-T3: From Plasma and Shock Wave Simulation to Residual Stress Prediction. In: Metals. Vol. 12 (2022) 1, 107. (DOI: /10.3390/met12010107)
Metals; Volume 12; Issue 1; Pages: 107
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, simu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b506fb844cc750bdc90b4b5e13683a68
https://pure.leuphana.de/ws/files/21219832/repo_21203105_oa_by.pdf
https://pure.leuphana.de/ws/files/21219832/repo_21203105_oa_by.pdf
Autor:
Dominik Pöltl, Sören Keller, Sergey Chupakhin, Siva Teja Sala, Nikolai Kashaev, Benjamin Klusemann
Publikováno v:
Pöltl, D.; Keller, S.; Chupakhin, S.; Sala, S.; Kashaev, N.; Klusemann, B.: Numerical Investigation of Influence of Spot Geometry in Laser Peen Forming of Thin-Walled Ti-6Al-4V Specimens. In: Vincze, G.; Barlat, F. Key Engineering Materials. Vol. 926 Uetikon: Trans Tech Publications, 2022. 2293-2302. (DOI: /10.4028/p-9ur6l9)
The aviation industry demands thin-walled structures of high dimensional accuracy. Varying radii and individual use-cases, e.g. for repair purpose, require flexible forming techniques. Laser peen forming (LPF) represents such a forming process provid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f30c98f32f99c6bf89b1d36ef2c8a78
https://publications.hereon.de/id/50934
https://publications.hereon.de/id/50934
Publikováno v:
Materials
Volume 14
Issue 8
Materials, Vol 14, Iss 1883, p 1883 (2021)
Bock, F.; Keller, S.; Huber, N.; Klusemann, B.: Hybrid Modelling by Machine Learning Corrections of Analytical Model Predictions towards High-Fidelity Simulation Solutions. In: Materials. Vol. 14 (2021) 8, 1883. (DOI: /10.3390/ma14081883)
Bock, F E, Keller, S, Huber, N & Klusemann, B 2021, ' Hybrid modelling by machine learning corrections of analytical model predictions towards high-fidelity simulation solutions ', Materials, vol. 14, no. 8, 1883 . https://doi.org/10.3390/ma14081883
Volume 14
Issue 8
Materials, Vol 14, Iss 1883, p 1883 (2021)
Bock, F.; Keller, S.; Huber, N.; Klusemann, B.: Hybrid Modelling by Machine Learning Corrections of Analytical Model Predictions towards High-Fidelity Simulation Solutions. In: Materials. Vol. 14 (2021) 8, 1883. (DOI: /10.3390/ma14081883)
Bock, F E, Keller, S, Huber, N & Klusemann, B 2021, ' Hybrid modelling by machine learning corrections of analytical model predictions towards high-fidelity simulation solutions ', Materials, vol. 14, no. 8, 1883 . https://doi.org/10.3390/ma14081883
Within the fields of materials mechanics, the consideration of physical laws in machine learning predictions besides the use of data can enable low prediction errors and robustness as opposed to predictions only based on data. On the one hand, exclus
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ec3384821f5d50b6f4c1a9a74faafcc
Publikováno v:
Schwab, K.; Keller, S.; Kashaev, N.; Klusemann, B.: Tailoring of residual stresses by specific use of defined prestress during laser shock peening. In: Journal of Materials Processing Technology. Vol. 295 (2021) 117154. (DOI: /10.1016/j.jmatprotec.2021.117154)
Schwab, K C, Keller, S, Kashaev, N & Klusemann, B 2021, ' Tailoring of residual stresses by specific use of defined prestress during laser shock peening ', Journal of Materials Processing Technology, vol. 295, 117154 . https://doi.org/10.1016/j.jmatprotec.2021.117154
Schwab, K C, Keller, S, Kashaev, N & Klusemann, B 2021, ' Tailoring of residual stresses by specific use of defined prestress during laser shock peening ', Journal of Materials Processing Technology, vol. 295, 117154 . https://doi.org/10.1016/j.jmatprotec.2021.117154
The aim of the present study is to tailor laser shock peening-induced residual stresses by applying defined prestress. For this purpose, elastic prestress is introduced during laser shock peening application and subsequently released. The influence o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0b4a22e88a025be465f5c0e68e6e3b35
https://publications.hzg.de/id/39775
https://publications.hzg.de/id/39775
Publikováno v:
Fatigue & fracture of engineering materials & structures 44(12), 3463-3481 (2021). doi:10.1111/ffe.13579
Kashaev, N.; Keller, S.; Staron, P.; Maawad, E.; Huber, N.: On the prediction of fatigue crack growth based on weight functions in residual stress fields induced by laser shock peening and laser heating. In: Fatigue and Fracture of Engineering Materials and Structures. Vol. 44 (2021) 12, 3463-3481. (DOI: /10.1111/ffe.13579)
Kashaev, N.; Keller, S.; Staron, P.; Maawad, E.; Huber, N.: On the prediction of fatigue crack growth based on weight functions in residual stress fields induced by laser shock peening and laser heating. In: Fatigue and Fracture of Engineering Materials and Structures. Vol. 44 (2021) 12, 3463-3481. (DOI: /10.1111/ffe.13579)
Fatigue & fracture of engineering materials & structures 44(12), 3463 - 3481 (2021). doi:10.1111/ffe.13579
This study deals with fatigue crack growth prediction for thin sheet AA2024 specimens with residual stresses introduced through laser shoc
This study deals with fatigue crack growth prediction for thin sheet AA2024 specimens with residual stresses introduced through laser shoc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ff7726b542695c26181576c5c92a3ba
https://bib-pubdb1.desy.de/record/470854
https://bib-pubdb1.desy.de/record/470854