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Macro-modelling of laser micro-joints for understanding joint strength in electric vehicle battery interconnects
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Das, Abhishek, Beaumont, Richard Adrian, Masters, Iain and Haney, Paul (2021) Macro-modelling of laser micro-joints for understanding joint strength in electric vehicle battery interconnects. Materials, 14 (13). 3552. doi:10.3390/ma14133552 ISSN 1996-1944.
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Official URL: https://doi.org/10.3390/ma14133552
Abstract
Laser micro-welding is increasingly being used to produce electrically conductive joints within a battery module of an automotive battery pack. To understand the joint strength of these laser welds at an early design stage, micro-joints are required to be modelled. Additionally, structural modelling of the battery module along with the electrical interconnects is important for understanding the crash safety of electric vehicles. Fusion zone based micro-modelling of laser welding is not a suitable approach for structural modelling due to the computational inefficiency and the difficulty of integrating with the module model. Instead, a macro-model which computationally efficient and easy to integrate with the structural model can be useful to replicate the behaviour of the laser weld. A macro-modelling approach was adopted in this paper to model the mechanical behaviour of laser micro-weld. The simulations were based on 5 mm diameter circular laser weld and developed from the experimental data for both the lap shear and T-peel tests. This modelling approach was extended to obtain the joint strengths for 3 mm diameter circular seams, 5 mm and 10 mm linear seams. The predicted load–displacement curves showed a close agreement with the test data. View Full-Text
| Item Type: | Journal Article | |||||||||
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| Subjects: | T Technology > TL Motor vehicles. Aeronautics. Astronautics T Technology > TS Manufactures |
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| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | |||||||||
| Library of Congress Subject Headings (LCSH): | Laser welding -- Computer simulation, Electric vehicles -- Batteries | |||||||||
| Journal or Publication Title: | Materials | |||||||||
| Publisher: | M D P I AG | |||||||||
| ISSN: | 1996-1944 | |||||||||
| Official Date: | 25 June 2021 | |||||||||
| Dates: |
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| Volume: | 14 | |||||||||
| Number: | 13 | |||||||||
| Article Number: | 3552 | |||||||||
| DOI: | 10.3390/ma14133552 | |||||||||
| Status: | Peer Reviewed | |||||||||
| Publication Status: | Published | |||||||||
| Access rights to Published version: | Open Access (Creative Commons) | |||||||||
| Date of first compliant deposit: | 25 June 2021 | |||||||||
| Date of first compliant Open Access: | 28 June 2021 | |||||||||
| RIOXX Funder/Project Grant: |
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| Is Part Of: | 1 |
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