Modeling of plastic anisotropy with reduced polycrystalline models. Application to aluminum alloys
Source abstract
Abstract
The modeling of deviations from isotropic hardening still is a difficult task for macroscopic models, in particular for non-proportional loading paths. The alternative polycrystalline models suffer from large CPU time in FE analyses and do not always give simultaneously a good description of flow stresses and transverse strain rates. Due to a specific parameter calibration procedure, a “reduced” polycrystalline model with 8 orientations only is in excellent agreement with all experimental curves for a 2090-T3 aluminum sheet. FE calculations of a punch test with contact and friction give CPU times only 15% larger than with a macroscopic model.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Metal Forming Simulation Techniques · Metallurgy and Material Forming · Microstructure and mechanical properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (8)
Show source-provided references
1. Barlat, F., Brem, J.C., Yoon, J.W., Chung, K., Dick, R.E., Lege, D.J., Pourboghrat, F., Choi, S.-H., Chu, E., Plane stress yield function for aluminum alloy sheets - part 1: theory. Int. J. Plasticity 19, (2003), 1297–1319.10.1016/S0749-6419(02)00019-0 ↗
2. Barlat, F., Aretz, H., Yoon, J.W., Karabin, M.E., Brem, J.C., Dick, R.E., Linear transformation-based anisotropic yield functions. Int. J. Plasticity 21, (2005), 1009–1039.10.1016/j.ijplas.2004.06.004 ↗
3. Bron, F., Besson, J., A yield function for anisotropic materials - Application to aluminum alloys. Int. J. Plasticity 20, (2004), 937–963.10.1016/j.ijplas.2003.06.001 ↗
4. Darrieulat, M., Montheillet, F., A texture based continuum approach for predicting the plastic behaviour of rolled sheet. Int. J. Plasticity 19, (2003), 517–546.10.1016/S0749-6419(01)00071-7 ↗
5. Lopes, A.B., Barlat, F., Gracio, J.J., Ferreira Duarte, J.F., Rauch, E.F., Effect of texture and microstructure on strain hardening anisotropy for aluminum deformed in uniaxial tension and simple shear. Int. J. Plasticity 19, (2003), 1–22.10.1016/S0749-6419(01)00016-X ↗
6. Méric, L., Poubanne, P., Cailletaud, G., Single crystal modeling for structural calculations - Part I: model presentation. J. Engng. Mater. Technol. 113, (1991), 162–170.10.1115/1.2903374 ↗
7. Sai, K., Cailletaud, G., Forest, S., Micro-mechanical modeling of the inelastic behavior of directionally solidified materials. Mechanics of Materials 38, (2006), 203–217.10.1016/j.mechmat.2005.06.007 ↗
8. Rousselier, G., Procédé pour déterminer un modèle polycristallin destiné à représenter le comportement d'un matériau solide soumis à une sollicitation mécanique. Demande de brevet d'invention n° 07 03215 du 4 mai 2007.