Formability prediction of perforated sheet metal by representative volume element and homogenized sheet models

Perforated sheet metal (PSM) can be formed with plastic deformation. Modeling a perforated model in finite element analysis requires domain discretization with many small elements, which can lead to significant computation time and cost. This study introduces a novel approach using representative vo...

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Bibliographic Details
Published in:Manufacturing letters 2024-11, Vol.42, p.11-15
Main Authors: Ha, Taekwang, Welo, Torgeir, Ringen, Geir, Wang, Jyhwen
Format: Article
Language:English
Subjects:
Forming failure
Homogenization
Necking
Perforated sheet metal
Representative volume element
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Summary:Perforated sheet metal (PSM) can be formed with plastic deformation. Modeling a perforated model in finite element analysis requires domain discretization with many small elements, which can lead to significant computation time and cost. This study introduces a novel approach using representative volume elements (RVE) and homogenized sheet (HS) models as an efficient alternative for PSM analysis. The forming limit of the PSM was established by analyzing localized necking in RVE. The HS model in simulations of the limit dome height and Swift cup tests results were in good agreement with those from the computational intensive perforated sheet models.
ISSN:2213-8463
2213-8463
DOI:10.1016/j.mfglet.2024.09.069