New strategy for the prediction of the gas pressure profile of superplastic forming of Al-5083 aluminium alloy

Nagore Otegi; Lander Galdos; Iñaki Hurtado; Sean B. Leen

doi:10.13025/24691

New strategy for the prediction of the gas pressure profile of superplastic forming of Al-5083 aluminium alloy

Nagore Otegi
, Lander Galdos
, Iñaki Hurtado
, Sean B. Leen

Mechanical Engineering

Mondragon University

Research output: Chapter in Book or Conference Publication/Proceeding › Conference Publication › peer-review

1 Citation (Scopus)

Abstract

This paper describes a new approach for identification of the optimum pressure history for SPF processes, based on mechanisms-based hyperbolic constitutive equations. This equation set has been modified to incorporate the effect of the damage behaviour the material suffers due to the cavitational evolution of Al-5083 superplastic alloy. A large deformation, multiaxial formulation of the constitutive equation set is implemented and applied to finite element modelling of a bulge test forming process to characterise the cavitation evolution behaviour in the bulge test, using conventional (constant strain rate) and the newly proposed (variable strain rate) strategy.

Original language	English
Title of host publication	Superplasticity in Advanced Materials - ICSAM 2012
Publisher	TRANS TECH PUBLICATIONS LTD
Pages	204-209
Number of pages	6
ISBN (Print)	9783037855539
DOIs	https://doi.org/10.13025/24691 https://doi.org/10.4028/www.scientific.net/msf.735.204
Publication status	Published - 2013
Event	11th International Conference on Superplasticity in Advanced Materials, ICSAM 2012 - Albi, France Duration: 3 Jul 2012 → 5 Jul 2012

Publication series

Name	Materials Science Forum
Volume	735
ISSN (Print)	0255-5476
ISSN (Electronic)	1662-9752

Conference

Conference	11th International Conference on Superplasticity in Advanced Materials, ICSAM 2012
Country/Territory	France
City	Albi
Period	3/07/12 → 5/07/12

Keywords

Al5083
Cavitation
Mechanisms-based constitutive equations
Superplastic forming

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Otegi, N., Galdos, L., Hurtado, I., & Leen, S. B. (2013). New strategy for the prediction of the gas pressure profile of superplastic forming of Al-5083 aluminium alloy. In Superplasticity in Advanced Materials - ICSAM 2012 (pp. 204-209). (Materials Science Forum; Vol. 735). TRANS TECH PUBLICATIONS LTD. https://doi.org/10.13025/24691, https://doi.org/10.4028/www.scientific.net/msf.735.204

@inproceedings{d87578123e4b4b678391fb0093d8fa84,

title = "New strategy for the prediction of the gas pressure profile of superplastic forming of Al-5083 aluminium alloy",

abstract = "This paper describes a new approach for identification of the optimum pressure history for SPF processes, based on mechanisms-based hyperbolic constitutive equations. This equation set has been modified to incorporate the effect of the damage behaviour the material suffers due to the cavitational evolution of Al-5083 superplastic alloy. A large deformation, multiaxial formulation of the constitutive equation set is implemented and applied to finite element modelling of a bulge test forming process to characterise the cavitation evolution behaviour in the bulge test, using conventional (constant strain rate) and the newly proposed (variable strain rate) strategy.",

keywords = "Al5083, Cavitation, Mechanisms-based constitutive equations, Superplastic forming",

author = "Nagore Otegi and Lander Galdos and I{\~n}aki Hurtado and Leen, \{Sean B.\}",

year = "2013",

doi = "10.13025/24691",

language = "English",

isbn = "9783037855539",

series = "Materials Science Forum",

publisher = "TRANS TECH PUBLICATIONS LTD",

pages = "204--209",

booktitle = "Superplasticity in Advanced Materials - ICSAM 2012",

note = "11th International Conference on Superplasticity in Advanced Materials, ICSAM 2012 ; Conference date: 03-07-2012 Through 05-07-2012",

}

Otegi, N, Galdos, L, Hurtado, I & Leen, SB 2013, New strategy for the prediction of the gas pressure profile of superplastic forming of Al-5083 aluminium alloy. in Superplasticity in Advanced Materials - ICSAM 2012. Materials Science Forum, vol. 735, TRANS TECH PUBLICATIONS LTD, pp. 204-209, 11th International Conference on Superplasticity in Advanced Materials, ICSAM 2012, Albi, France, 3/07/12. https://doi.org/10.13025/24691, https://doi.org/10.4028/www.scientific.net/msf.735.204

New strategy for the prediction of the gas pressure profile of superplastic forming of Al-5083 aluminium alloy. / Otegi, Nagore; Galdos, Lander; Hurtado, Iñaki et al.
Superplasticity in Advanced Materials - ICSAM 2012. TRANS TECH PUBLICATIONS LTD, 2013. p. 204-209 (Materials Science Forum; Vol. 735).

Research output: Chapter in Book or Conference Publication/Proceeding › Conference Publication › peer-review

TY - GEN

T1 - New strategy for the prediction of the gas pressure profile of superplastic forming of Al-5083 aluminium alloy

AU - Otegi, Nagore

AU - Galdos, Lander

AU - Hurtado, Iñaki

AU - Leen, Sean B.

PY - 2013

Y1 - 2013

N2 - This paper describes a new approach for identification of the optimum pressure history for SPF processes, based on mechanisms-based hyperbolic constitutive equations. This equation set has been modified to incorporate the effect of the damage behaviour the material suffers due to the cavitational evolution of Al-5083 superplastic alloy. A large deformation, multiaxial formulation of the constitutive equation set is implemented and applied to finite element modelling of a bulge test forming process to characterise the cavitation evolution behaviour in the bulge test, using conventional (constant strain rate) and the newly proposed (variable strain rate) strategy.

AB - This paper describes a new approach for identification of the optimum pressure history for SPF processes, based on mechanisms-based hyperbolic constitutive equations. This equation set has been modified to incorporate the effect of the damage behaviour the material suffers due to the cavitational evolution of Al-5083 superplastic alloy. A large deformation, multiaxial formulation of the constitutive equation set is implemented and applied to finite element modelling of a bulge test forming process to characterise the cavitation evolution behaviour in the bulge test, using conventional (constant strain rate) and the newly proposed (variable strain rate) strategy.

KW - Al5083

KW - Cavitation

KW - Mechanisms-based constitutive equations

KW - Superplastic forming

UR - http://hdl.handle.net/10379/13366

UR - https://www.scopus.com/pages/publications/84873038782

U2 - 10.13025/24691

DO - 10.13025/24691

M3 - Conference Publication

SN - 9783037855539

T3 - Materials Science Forum

SP - 204

EP - 209

BT - Superplasticity in Advanced Materials - ICSAM 2012

PB - TRANS TECH PUBLICATIONS LTD

T2 - 11th International Conference on Superplasticity in Advanced Materials, ICSAM 2012

Y2 - 3 July 2012 through 5 July 2012

ER -

New strategy for the prediction of the gas pressure profile of superplastic forming of Al-5083 aluminium alloy

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