Macroscopic anisotropy in AA5019A sheets

被引：71

作者：

Choi, SH

Brem, JC

Barlat, F

Oh, KH

机构：

[1] Alcoa Tech Ctr, Alcoa Center, PA 15069 USA

[2] Seoul Natl Univ, Sch Mat Sci & Engn, Seoul 151742, South Korea

来源：

ACTA MATERIALIA | 2000年 / 48卷 / 08期

关键词：

aluminum alloys; mechanical properties (texture; constitutive equations; plastic); polycrystal modeling;

D O I：

10.1016/S1359-6454(99)00470-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The macroscopic anisotropy for typical texture components in aluminum alloys and AA5019A sheet samples (H48 and O temper conditions) were investigated. In order to simultaneously consider the effects of morphological texture and crystallographic texture on macroscopic anisotropy, predictions of plastic properties were carried our using a full-constraints Taylor model and a visco-plastic self-consistent (VPSC) polycrystal model. The yield stress and r-value (width-to-thickness plastic strain ratio in uniaxial tension) anisotropy predicted using the VPSC model were in good agreement with experimental data. (C) 2000 Acta Metallurgica Tnc. Published by Elsevier Science Ltd. An rights reserved.

引用

页码：1853 / 1863

页数：11

共 40 条

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CHOI SH, 1999, P ICOTOM, V12

[12] Blank shape design for a planar anisotropic sheet based on ideal forming design theory and fem analysis [J].