dc.contributor.authors |
Firat, Mehmet; Sener, Bora; Aksen, Toros Arda; Esener, Emre |
|
dc.date.accessioned |
2022-12-20T13:25:04Z |
|
dc.date.available |
2022-12-20T13:25:04Z |
|
dc.date.issued |
2022 |
|
dc.identifier.issn |
0025-5300 |
|
dc.identifier.uri |
http://dx.doi.org/10.1515/mt-2022-0201 |
|
dc.identifier.uri |
https://hdl.handle.net/20.500.12619/99182 |
|
dc.description |
Bu yayının lisans anlaşması koşulları tam metin açık erişimine izin vermemektedir. |
|
dc.description.abstract |
Earing can be described as difference in cup wall height due to planar anisotropy of the sheet metals, and both prediction and minimization of this defect are critical steps of drawing process design to save material and production costs due to additional trimming operations. The finite element (FE) method is a practical design tool in this context. The accuracy of FE analyses is directly dependent on modeling material deformations using an effective plasticity model. In this study, a homogeneous orthotropic fourth-order polynomial stress function is presented and implemented into Ls-Dyna FE software by a user-defined material subroutine to predict the earing evolution of a strongly anisotropic aluminum alloy (AA2090-T3) in cup drawing. Primarily, the parameters of the function were calibrated using test data. The effects of element size, number of through-thickness integration points, and time-step size were investigated separately on the drawn cup's earing profile and thickness strain distributions. It was observed that mass scaling factor related to time step size has a significant impact on the cup height and profile. Finally, simulations were repeated with optimum parameters to assess the performance of the plasticity model. The yield criterion successfully predicted the cup profile, earing amplitude, and thickness strain distributions. |
|
dc.language |
English |
|
dc.language.iso |
eng |
|
dc.relation.isversionof |
10.1515/mt-2022-0201 |
|
dc.subject |
Materials Science |
|
dc.subject |
earing profile |
|
dc.subject |
finite element method |
|
dc.subject |
polynomial yield function |
|
dc.subject |
thickness strain |
|
dc.subject |
yield criterion |
|
dc.title |
Earing prediction of 2090-T3 aluminum-cups using a complete homogenous fourth-order polynomial yield function |
|
dc.contributor.authorID |
FIRAT, MEHMET/0000-0002-3973-4736 |
|
dc.identifier.volume |
64 |
|
dc.identifier.startpage |
1480 |
|
dc.identifier.endpage |
1494 |
|
dc.relation.journal |
MATERIALS TESTING |
|
dc.identifier.issue |
10 |
|
dc.identifier.doi |
10.1515/mt-2022-0201 |
|
dc.identifier.eissn |
2195-8572 |
|
dc.contributor.author |
Firat, Mehmet |
|
dc.contributor.author |
Sener, Bora |
|
dc.contributor.author |
Aksen, Toros Arda |
|
dc.contributor.author |
Esener, Emre |
|
dc.relation.publicationcategory |
Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı |
|