A new model for FLD prediction based on advanced constitutive equations

被引：15
作者：
Butuc, Marilena Carmen [1 ]
Barlat, Frederic [1 ,2 ]
Gracio, Jose J. [1 ]
da Rocha, Augusto Barata [3 ]
机构：
[1] Univ Aveiro, Ctr Tecnol Mecan & Automacao, P-3810193 Aveiro, Portugal
[2] Pohang Univ Sci & Technol POSTECH, Grad Inst Ferrous Technol GIFT, Mat Mech Lab MML, Pohang 790784, Gyeongbuk, South Korea
[3] Univ Porto, Dept Engn Mecan, P-4200465 Oporto, Portugal
来源：
INTERNATIONAL JOURNAL OF MATERIAL FORMING | 2010年 / 3卷 / 03期
关键词：
Forming limit; Plastic flow localization; Yield condition; Anisotropic material; Constitutive equations; Numerical simulation; FORMING LIMIT DIAGRAMS; LOCALIZED NECKING; YIELD FUNCTION; SHEET METALS; NUMERICAL-ANALYSIS; PLASTIC BEHAVIOR; STRAIN; SURFACE; STRETCHABILITY;
D O I：
10.1007/s12289-009-0667-6
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
An advanced sheet metal forming limit model is developed. Using the Marciniak-Kuczinsky analysis, this approach intends to join advantages of physics-based aspects of plasticity with advantages of phenomenological material description. It aims thus at connecting the most advanced physically-based hardening model accounting for the evolution of the anisotropic work hardening induced by the microstructural evolution at large strains of Teodosiu and Hu (1995) with the advanced phenomenological anisotropic yield criterion Yld2000-2d (Barlat et al. Int J Plast 19: 1297-1319, 2003). Two deep-drawing quality sheet metals are selected: a bake-hardening steel (BH) and AA6016-T4 aluminium alloy. Linear and complex strain paths are taken into account. By comparing the simulated and experimental results the model is validated.
引用
收藏
页码：191 / 204
页数：14
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