Finite element analysis of aluminum tube hydroforming based on non-quadratic yield function

被引：0

作者：

Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, WI 53226, United States ^{[1
]}

不详 ^{[2
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机构：

来源：

Int. J. Manuf. Technol. Manage. | 2008年 / 1-2卷 / 84-99期

关键词：

Anisotropy - Finite element method - Mathematical models - Polycrystalline materials - Textures;

D O I：

10.1504/IJMTM.2008.017487

中图分类号：

学科分类号：

摘要：

Although very accurate in representing the material anisotropy, finite element analysis based on direct use of a polycrystal model is CPU-intensive (Guan et al., 2006a). In the present study, this Taylor-type polycrystalline model was firstly used to predict the anisotropy coefficients of Yld96 yield function. Then this phenomenological anisotropic yield function was implemented into ABAQUS/Standard finite element code, using UMAT, for the hydroforming simulation of a 6061-T4 extruded aluminum tube. It was shown that compared with von Mises (1913) and Hill's (1948) yield function, the Yld96 material model's predictions are in better agreement with experimental data. Copyright © 2008 Inderscience Enterprises Ltd.

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