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Elastic behaviour characterisation of TRIP 700 steel by means of loading-unloading tests.pdf (678.1Kb)
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Title
Elastic behaviour characterisation of TRIP 700 steel by means of loading-unloading tests
Author
Mendiguren, Joseba ccMondragon Unibertsitatea
Gomez-Mitxelena, Xabier ccMondragon Unibertsitatea
GALDOS, Lander ccMondragon Unibertsitatea
Author (from another institution)
Cortés, Fernando
Research Group
Procesos avanzados de conformación de materiales
Published Date
2015
Publisher
Elsevier Ltd.
Keywords
springback
TRIP 700
Elastic unloading
Non-linear elastic loading ... [+]
springback
TRIP 700
Elastic unloading
Non-linear elastic loading
Inelasticity
Pseudo-young modulus [-]
Abstract
The elastic behaviour of TRIP 700 steel under plastic deformation is analysed. The analysis is carried out by means of classical tensile test and loading–unloading cyclic tests. These tests have been ... [+]
The elastic behaviour of TRIP 700 steel under plastic deformation is analysed. The analysis is carried out by means of classical tensile test and loading–unloading cyclic tests. These tests have been performed using high deformation strain gages, which enable an accurate and continuous measurement of strain. An elastic modulus reduction of 20% is observed for 12% plastic deformation. Furthermore, non-linear unloading and loading paths have been found in this work. This is an important difference with respect to other authors and opens new possibilities for the development of new material models to improve the prediction of the post-forming springback of industrial parts, which is an important issue for the automotive industry. [-]
URI
https://hdl.handle.net/20.500.11984/5363
Publisher’s version
https://doi.org/10.1016/j.msea.2015.03.050
ISSN
0921-5093
Published at
Materials Science & Engineering A  Vol. 634. Pp. 147–152, 2015
Document type
Article
Version
Postprint – Accepted Manuscript
Rights
© 2015 Elsevier Ltd. All rights reserved
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Open Access
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  • Articles - Engineering [483]

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