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Published in: The International Journal of Advanced Manufacturing Technology 1-2/2022

03-02-2022 | ORIGINAL ARTICLE

Numerical modelling and experimental analysis on angular strain induced by bead-on-plate SS316L GMAW using inherent strain and thermomechanical methods

Authors: Siti Nursyahirah Ahmad, Yupiter H. P. Manurung, Keval P. Prajadhiana, Yusuf O. Busari, Muhd Faiz Mat, Norasiah Muhammad, Martin Leitner, Salina Saidin

Published in: The International Journal of Advanced Manufacturing Technology | Issue 1-2/2022

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Abstract

This study presents a basic investigation on angular strain behaviour of substrate using experiment and three different numerical computations based on elastic and elastic–plastic FEM methods. In simulation, a 3D simplified rectangular weld bead geometry was modelled and computed using general purposed numerical software MSC Marc/Mentat. While elastic FEM with well-known inherent strain method-user defined (ISM-UD) and new ISM weld-kinematics (ISM-WK) were applied in which the inherent strain values were empirically estimated with regard to process parameters, physical properties, and effective area on heat affected zone, the most popular elastic–plastic or thermo-mechanical method (TMM) considers temperature-dependent isotropic hardening rule and heat source model. For verification purpose, experimental analysis was conducted as bead-on-plate process with austenitic stainless steel material SS316L using GMAW robotic welding. It can be concluded that TMM can predict the total experimental angular strain with mean percentage error up to ca. 7% compared to ISM with 19% for weld kinematics and 29% for user defined. In terms of computational time, ISM gave higher potential to be implemented with only 10% of TMM.

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Metadata
Title
Numerical modelling and experimental analysis on angular strain induced by bead-on-plate SS316L GMAW using inherent strain and thermomechanical methods
Authors
Siti Nursyahirah Ahmad
Yupiter H. P. Manurung
Keval P. Prajadhiana
Yusuf O. Busari
Muhd Faiz Mat
Norasiah Muhammad
Martin Leitner
Salina Saidin
Publication date
03-02-2022
Publisher
Springer London
Published in
The International Journal of Advanced Manufacturing Technology / Issue 1-2/2022
Print ISSN: 0268-3768
Electronic ISSN: 1433-3015
DOI
https://doi.org/10.1007/s00170-022-08684-5

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