Please use this identifier to cite or link to this item: https://hdl.handle.net/10316/108669
Title: DD3MAT - a code for yield criteria anisotropy parameters identification
Authors: Barros, P. D. 
Carvalho, P. D.
Alves, J. L. 
Oliveira, M. C. 
Menezes, L. F. 
Issue Date: 2016
Publisher: Institute of Physics Publishing
Serial title, monograph or event: Journal of Physics: Conference Series
Volume: 734
Issue: 3
Abstract: This work presents the main strategies and algorithms adopted in the DD3MAT inhouse code, specifically developed for identifying the anisotropy parameters. The algorithm adopted is based on the minimization of an error function, using a downhill simplex method. The set of experimental values can consider yield stresses and r -values obtained from in-plane tension, for different angles with the rolling direction (RD), yield stress and r -value obtained for biaxial stress state, and yield stresses from shear tests performed also for different angles to RD. All these values can be defined for a specific value of plastic work. Moreover, it can also include the yield stresses obtained from in-plane compression tests. The anisotropy parameters are identified for an AA2090-T3 aluminium alloy, highlighting the importance of the user intervention to improve the numerical fit.
URI: https://hdl.handle.net/10316/108669
ISSN: 1742-6588
1742-6596
DOI: 10.1088/1742-6596/734/3/032053
Rights: openAccess
Appears in Collections:FCTUC Eng.Mecânica - Artigos em Revistas Internacionais

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