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Descripción
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This dataset contains the UMAT and VUMAT subroutines coded to implement in the finite element code ABAQUS the constitutive models Yld2004-18p (Barlat et al., 2005), CPB06ex2 (Plunkett et al.,2008) and Yld2011-27p (Aretz and Barlat, 2013). They have been used to perform all the finite element simultations reported in the manuscript of Hosseini and Rodríguez-Martínez (2021)
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Notas
| ** We include different UMATs and VUMATs for the 2D (plane strain) and 3D calculations. The 3D codes include versions with both analytical and numerical expressions for the yield function gradients. The 2D codes only include numerical expressions for the yield function gradients.
** The codes with the analytical expressions of the yield function gradients may show singularities for some loading conditions (see Section 5.4. of Hosseini and Rodríguez-Martínez (2020)).
** The 3D UMATs and VUMATs were used to perform the deep drawing calculations in Hosseini and Rodríguez-Martínez (2020).
** The 2D UMATs and VUMATs were used to perform the dynamic necking calculations in Hosseini and Rodríguez-Martínez (2020).
** We recomend to use the codes with the numerical approximations of the yield function gradients. They do not show singularities, and they are computationally more efficient (especially the UMATs).
PLEASE CITE THE FOLLOWING PAPER ANYTIME YOU USE THE UMATs and the VUMATs:
Hosseini, N., Rodríguez-Martínez, J. A. (2021). A simple and computationally efficient stress integration scheme based on numerical approximation of the yield function gradients: Application to advanced yield criteria. Finite Elements in Analysis and Design, 192, 103538. DOI: https://doi.org/10.1016/j.finel.2021.103538 |
