Finite element simulation of aluminum sheet warm forming using alflow hardening model

S. Kurukuri, Antonius H. van den Boogaard, Han Huetink

Abstract

In order to accurately model the plastic deformation of Aluminum sheet at elevated temperatures, a model is required that incorporate the temperature and strain rate dependency of the material. In this article, two physically based models are compared: Bergstr¨om and Alflow model. Although both models can be fit quite well to monotonic tensile tests of 5754-O alloy, large differences appear if strain rate jumps are applied. The Alflow model also represents the negative strain rate sensitivity behavior of Al-Mg alloys at temperatures below 125±C.
Original languageUndefined
Pages635-638
Number of pages4
StatePublished - 2007

Fingerprint

Strain rate
Temperature
Aluminum sheet
Plastic deformation

Keywords

  • Material model
  • Warm forming
  • Alflow hardening
  • IR-59636
  • Aluminum

Cite this

Kurukuri, S.; van den Boogaard, Antonius H.; Huetink, Han / Finite element simulation of aluminum sheet warm forming using alflow hardening model.

2007. 635-638.

Research output: ScientificPaper

@misc{a7fc658e9a834717bb0ef33b7b748eff,
title = "Finite element simulation of aluminum sheet warm forming using alflow hardening model",
abstract = "In order to accurately model the plastic deformation of Aluminum sheet at elevated temperatures, a model is required that incorporate the temperature and strain rate dependency of the material. In this article, two physically based models are compared: Bergstr¨om and Alflow model. Although both models can be fit quite well to monotonic tensile tests of 5754-O alloy, large differences appear if strain rate jumps are applied. The Alflow model also represents the negative strain rate sensitivity behavior of Al-Mg alloys at temperatures below 125±C.",
keywords = "Material model, Warm forming, Alflow hardening, IR-59636, Aluminum",
author = "S. Kurukuri and {van den Boogaard}, {Antonius H.} and Han Huetink",
year = "2007",
pages = "635--638",

}

Finite element simulation of aluminum sheet warm forming using alflow hardening model. / Kurukuri, S.; van den Boogaard, Antonius H.; Huetink, Han.

2007. 635-638.

Research output: ScientificPaper

TY - CONF

T1 - Finite element simulation of aluminum sheet warm forming using alflow hardening model

AU - Kurukuri,S.

AU - van den Boogaard,Antonius H.

AU - Huetink,Han

PY - 2007

Y1 - 2007

N2 - In order to accurately model the plastic deformation of Aluminum sheet at elevated temperatures, a model is required that incorporate the temperature and strain rate dependency of the material. In this article, two physically based models are compared: Bergstr¨om and Alflow model. Although both models can be fit quite well to monotonic tensile tests of 5754-O alloy, large differences appear if strain rate jumps are applied. The Alflow model also represents the negative strain rate sensitivity behavior of Al-Mg alloys at temperatures below 125±C.

AB - In order to accurately model the plastic deformation of Aluminum sheet at elevated temperatures, a model is required that incorporate the temperature and strain rate dependency of the material. In this article, two physically based models are compared: Bergstr¨om and Alflow model. Although both models can be fit quite well to monotonic tensile tests of 5754-O alloy, large differences appear if strain rate jumps are applied. The Alflow model also represents the negative strain rate sensitivity behavior of Al-Mg alloys at temperatures below 125±C.

KW - Material model

KW - Warm forming

KW - Alflow hardening

KW - IR-59636

KW - Aluminum

M3 - Paper

SP - 635

EP - 638

ER -