@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 = "N. Otegi and L. Galdos and I. Hurtado and Leen, \{S. B.\}",
year = "2013",
doi = "10.4028/www.scientific.net/MSF.735.204",
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",
}