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Numerical modelling of shear cutting using particle methods
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Solid Mechanics.ORCID iD: 0000-0002-0764-5667
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Solid Mechanics. School of Applied Sciences and Engineering, EAFIT University, Medellin, Colombia.ORCID iD: 0000-0003-3865-1426
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Solid Mechanics.ORCID iD: 0000-0001-7895-1058
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Solid Mechanics. Eurecat, Centre Tecnològic de Catalunya, Unit of Metallic and Ceramic Materials, Manresa, Spain .ORCID iD: 0000-0003-4720-7888
2023 (English)In: IOP Conference Series: Materials Science and Engineering / [ed] Nader Asnafi, Lars-Erik Lindgren, Institute of Physics (IOP), 2023, Vol. 1284, article id 012048Conference paper, Published paper (Refereed)
Abstract [en]

The use of Advanced High Strength Steel (AHSS) allows for lightweighting of sheet steel components, with maintained structural integrity of the part. However, AHSS grades show limitations in edge crack resistance, primarily influenced by sheared edge damage introduced by the shear cutting process. Numerical modelling of the shear cutting process can aid the understanding of the sheared edge damage, thus avoiding unforeseen edge cracking in the subsequent cold forming. However, the extreme deformations of the blank during the shear cutting process are likely to cause numerical instabilities and divergence using conventional Finite Element modelling. To overcome these challenges, this work presents the use of a particle-based numerical modelling method called the Particle Finite Element Method (PFEM). PFEM accurately solves some of the challenges encountered in shear cutting with the standard Finite Element method, such as large deformation, angular distortions, generation of new boundaries and presents an efficient way of transfer historical information from the old to the new mesh, minimising the results diffusion. The present work shows prediction of cut edge morphology of AHSS using a PFEM modelling scheme, where the numerical results are verified against experiments. With these results, the authors show new possibilities to obtain accurate numerical prediction of the shear cutting process, which promotes further advances in prediction of edge damaged related to shear cutting of AHSS.

Place, publisher, year, edition, pages
Institute of Physics (IOP), 2023. Vol. 1284, article id 012048
Series
IOP Conference Series-Materials Science and Engineering, ISSN 1757-8981, E-ISSN 1757-899X
National Category
Applied Mechanics
Research subject
Solid Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-99470DOI: 10.1088/1757-899X/1284/1/012048ISI: 001017824300048OAI: oai:DiVA.org:ltu-99470DiVA, id: diva2:1786961
Conference
42nd Conference of the International Deep Drawing Research Group (IDDRG), June 19-22, 2023, Luleå, Sweden
Note

Licens fulltext: CC BY License

Available from: 2023-08-10 Created: 2023-08-10 Last updated: 2023-09-05Bibliographically approved

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Sandin, OlleRodriguez Prieto, Juan ManuelHammarberg, SamuelCasellas, Daniel

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