Influence of weld-induced distortions on the stress magnification factor of a thin laser-hybrid welded ship deck panel

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Standard

Influence of weld-induced distortions on the stress magnification factor of a thin laser-hybrid welded ship deck panel. / Niraula, A.; Rautiainen, M.; Niemelä, A.; Lillemäe-Avi, I.; Remes, H.

Trends in the Analysis and Design of Marine Structures: Proceedings of the 7th International Conference on Marine Structures, MARSTRUCT 2019. ed. / C.Guedes Soares; J. Parunov. CRC Press/Balkema, 2019. p. 423-432 (Trends in the Analysis and Design of Marine Structures - Proceedings of the 7th International Conference on Marine Structures, MARSTRUCT 2019).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Harvard

Niraula, A, Rautiainen, M, Niemelä, A, Lillemäe-Avi, I & Remes, H 2019, Influence of weld-induced distortions on the stress magnification factor of a thin laser-hybrid welded ship deck panel. in CG Soares & J Parunov (eds), Trends in the Analysis and Design of Marine Structures: Proceedings of the 7th International Conference on Marine Structures, MARSTRUCT 2019. Trends in the Analysis and Design of Marine Structures - Proceedings of the 7th International Conference on Marine Structures, MARSTRUCT 2019, CRC Press/Balkema, pp. 423-432, International Conference on Marine Structures, Dubrovnik, Croatia, 06/05/2019. https://doi.org/10.1201/9780429298875-49

APA

Niraula, A., Rautiainen, M., Niemelä, A., Lillemäe-Avi, I., & Remes, H. (2019). Influence of weld-induced distortions on the stress magnification factor of a thin laser-hybrid welded ship deck panel. In C. G. Soares, & J. Parunov (Eds.), Trends in the Analysis and Design of Marine Structures: Proceedings of the 7th International Conference on Marine Structures, MARSTRUCT 2019 (pp. 423-432). (Trends in the Analysis and Design of Marine Structures - Proceedings of the 7th International Conference on Marine Structures, MARSTRUCT 2019). CRC Press/Balkema. https://doi.org/10.1201/9780429298875-49

Vancouver

Niraula A, Rautiainen M, Niemelä A, Lillemäe-Avi I, Remes H. Influence of weld-induced distortions on the stress magnification factor of a thin laser-hybrid welded ship deck panel. In Soares CG, Parunov J, editors, Trends in the Analysis and Design of Marine Structures: Proceedings of the 7th International Conference on Marine Structures, MARSTRUCT 2019. CRC Press/Balkema. 2019. p. 423-432. (Trends in the Analysis and Design of Marine Structures - Proceedings of the 7th International Conference on Marine Structures, MARSTRUCT 2019). https://doi.org/10.1201/9780429298875-49

Author

Niraula, A. ; Rautiainen, M. ; Niemelä, A. ; Lillemäe-Avi, I. ; Remes, H. / Influence of weld-induced distortions on the stress magnification factor of a thin laser-hybrid welded ship deck panel. Trends in the Analysis and Design of Marine Structures: Proceedings of the 7th International Conference on Marine Structures, MARSTRUCT 2019. editor / C.Guedes Soares ; J. Parunov. CRC Press/Balkema, 2019. pp. 423-432 (Trends in the Analysis and Design of Marine Structures - Proceedings of the 7th International Conference on Marine Structures, MARSTRUCT 2019).

Bibtex - Download

@inproceedings{17de189d7ae147d08d0709cd8928bb5c,
title = "Influence of weld-induced distortions on the stress magnification factor of a thin laser-hybrid welded ship deck panel",
abstract = "The limited knowledge about fatigue behavior and lack of analytical solutions for distorted thin plates are predominantly limiting their application today. This paper focuses on finding the most influential distortion parameter that dictates the fatigue strength at the butt weld of a laser-hybrid welded 4 mm thin ship deck panel. A FEA based sensitivity analysis method is employed to identify the influence of the distortion parameters. The results from the experimental validation showed that the distortions of the distorted deck plate on either side of the butt weld could be simplified with 4-point and 3-point splines on longitudinal and transversal direction, respectively. The most important distortion parameters are local angular misalignment, the distortion magnitude and location of local maximum distortion close to the butt weld. The distortion parameters further away from the weld has a minor influence on the structural stress at the butt weld. Furthermore, the results showed that the local angular misalignment can independently provide a better estimate of stress magnification factor km compared to any other distortion parameters.",
author = "A. Niraula and M. Rautiainen and A. Niemel{\"a} and I. Lillem{\"a}e-Avi and H. Remes",
year = "2019",
month = "5",
day = "8",
doi = "10.1201/9780429298875-49",
language = "English",
isbn = "9780367278090",
series = "Trends in the Analysis and Design of Marine Structures - Proceedings of the 7th International Conference on Marine Structures, MARSTRUCT 2019",
publisher = "CRC Press/Balkema",
pages = "423--432",
editor = "C.Guedes Soares and J. Parunov",
booktitle = "Trends in the Analysis and Design of Marine Structures",

}

RIS - Download

TY - GEN

T1 - Influence of weld-induced distortions on the stress magnification factor of a thin laser-hybrid welded ship deck panel

AU - Niraula, A.

AU - Rautiainen, M.

AU - Niemelä, A.

AU - Lillemäe-Avi, I.

AU - Remes, H.

PY - 2019/5/8

Y1 - 2019/5/8

N2 - The limited knowledge about fatigue behavior and lack of analytical solutions for distorted thin plates are predominantly limiting their application today. This paper focuses on finding the most influential distortion parameter that dictates the fatigue strength at the butt weld of a laser-hybrid welded 4 mm thin ship deck panel. A FEA based sensitivity analysis method is employed to identify the influence of the distortion parameters. The results from the experimental validation showed that the distortions of the distorted deck plate on either side of the butt weld could be simplified with 4-point and 3-point splines on longitudinal and transversal direction, respectively. The most important distortion parameters are local angular misalignment, the distortion magnitude and location of local maximum distortion close to the butt weld. The distortion parameters further away from the weld has a minor influence on the structural stress at the butt weld. Furthermore, the results showed that the local angular misalignment can independently provide a better estimate of stress magnification factor km compared to any other distortion parameters.

AB - The limited knowledge about fatigue behavior and lack of analytical solutions for distorted thin plates are predominantly limiting their application today. This paper focuses on finding the most influential distortion parameter that dictates the fatigue strength at the butt weld of a laser-hybrid welded 4 mm thin ship deck panel. A FEA based sensitivity analysis method is employed to identify the influence of the distortion parameters. The results from the experimental validation showed that the distortions of the distorted deck plate on either side of the butt weld could be simplified with 4-point and 3-point splines on longitudinal and transversal direction, respectively. The most important distortion parameters are local angular misalignment, the distortion magnitude and location of local maximum distortion close to the butt weld. The distortion parameters further away from the weld has a minor influence on the structural stress at the butt weld. Furthermore, the results showed that the local angular misalignment can independently provide a better estimate of stress magnification factor km compared to any other distortion parameters.

UR - http://www.scopus.com/inward/record.url?scp=85068497215&partnerID=8YFLogxK

U2 - 10.1201/9780429298875-49

DO - 10.1201/9780429298875-49

M3 - Conference contribution

SN - 9780367278090

T3 - Trends in the Analysis and Design of Marine Structures - Proceedings of the 7th International Conference on Marine Structures, MARSTRUCT 2019

SP - 423

EP - 432

BT - Trends in the Analysis and Design of Marine Structures

A2 - Soares, C.Guedes

A2 - Parunov, J.

PB - CRC Press/Balkema

ER -

ID: 35666653