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Evaluation of material models and element types for sheet metal formning of titanium

Gabrielson, Per LU ; Ekdahl, Lars and Moshfegh, Ramin (2007) Forming the Future, Innovations in Sheet Metal Forming, IDDRG 2007 International Conference p.109-116
Abstract
In the last decades, the growing competitiveness of the market has continuously driven the forming companies to highly optimize their products regarding offered performance at minimum cost. In order to achieve better products, studies where conducted with different material models when simulating the forming process of titanium. The material is often used in heat exchanger applications. Titanium has a HCP structure which results in high anisotropy in rolled sheet metal. It is of importance to be able to simulate the sheet metal forming process of titanium in a more precise way both regarding formability and springback. In this work different material models for titanium where used and evaluated against experimental work in special test... (More)
In the last decades, the growing competitiveness of the market has continuously driven the forming companies to highly optimize their products regarding offered performance at minimum cost. In order to achieve better products, studies where conducted with different material models when simulating the forming process of titanium. The material is often used in heat exchanger applications. Titanium has a HCP structure which results in high anisotropy in rolled sheet metal. It is of importance to be able to simulate the sheet metal forming process of titanium in a more precise way both regarding formability and springback. In this work different material models for titanium where used and evaluated against experimental work in special test module tools (TMT). The evaluation is made by comparing results of simulations with pressed test parts in titanium. This paper describes FE-analysis of springback using the YLD 2000 model compared to the anisotropic-viscoplastic material model. Different element types were also analysed. It has been shown that material model YLD 2000 and elements with through thickness stretch gives the most accurate results in the performed simulations. (Less)
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author
; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Material model, titanium, formability, forming simulation, springback, sheet metal forming
host publication
Forming the future : innovations in sheet metal forming : proceedings of IDDRG 2007, Győr, Hungary, 21-23 May, 2007
editor
Tisza, Miklós
pages
109 - 116
publisher
The University of Miskolc
conference name
Forming the Future, Innovations in Sheet Metal Forming, IDDRG 2007 International Conference
conference location
Györ, Hungary
conference dates
2007-05-21 - 2007-05-23
language
English
LU publication?
yes
additional info
IDDRG International Conference IDDRG Conference International Deep Drawing Research Group Conference
id
8dd3e32d-3739-438e-a463-6faedd5a452e (old id 4378532)
date added to LUP
2016-04-04 11:01:04
date last changed
2018-11-21 21:02:09
@inproceedings{8dd3e32d-3739-438e-a463-6faedd5a452e,
  abstract     = {{In the last decades, the growing competitiveness of the market has continuously driven the forming companies to highly optimize their products regarding offered performance at minimum cost. In order to achieve better products, studies where conducted with different material models when simulating the forming process of titanium. The material is often used in heat exchanger applications. Titanium has a HCP structure which results in high anisotropy in rolled sheet metal. It is of importance to be able to simulate the sheet metal forming process of titanium in a more precise way both regarding formability and springback. In this work different material models for titanium where used and evaluated against experimental work in special test module tools (TMT). The evaluation is made by comparing results of simulations with pressed test parts in titanium. This paper describes FE-analysis of springback using the YLD 2000 model compared to the anisotropic-viscoplastic material model. Different element types were also analysed. It has been shown that material model YLD 2000 and elements with through thickness stretch gives the most accurate results in the performed simulations.}},
  author       = {{Gabrielson, Per and Ekdahl, Lars and Moshfegh, Ramin}},
  booktitle    = {{Forming the future : innovations in sheet metal forming : proceedings of IDDRG 2007, Győr, Hungary, 21-23 May, 2007}},
  editor       = {{Tisza, Miklós}},
  keywords     = {{Material model; titanium; formability; forming simulation; springback; sheet metal forming}},
  language     = {{eng}},
  pages        = {{109--116}},
  publisher    = {{The University of Miskolc}},
  title        = {{Evaluation of material models and element types for sheet metal formning of titanium}},
  year         = {{2007}},
}