Texture evolution of FCC sheet metals during deep drawing process

被引：33
作者：
Choi, SH
Cho, JH
Oh, KH
Chung, KK
Barlat, F
机构：
[1] Seoul Natl Univ, Sch Mat Sci & Engn, Res Inst Adv Mat, Seoul 151742, South Korea
[2] Seoul Natl Univ, Dept Fiber & Polymer Sci, Seoul 151742, South Korea
来源：
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES | 2000年 / 42卷 / 08期
关键词：
texture; deep drawing; FEM; rate-sensitive polycrystal mode;
D O I：
10.1016/S0020-7403(99)00091-0
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The stability of ideal orientations and texture evolution was investigated for FCC sheet metals during deep drawing. Lattice rotation fields around ideal orientations were numerically predicted using a rate-sensitive polycrystal model with full constraint boundary conditions. In order to evaluate the strain path during deep drawing of an AA1050, simulations using a finite element analysis were carried out. The stability of orientations and texture formation was examined at sequential paths such as flange deformation, transition and wall deformation. Depending on the initial location in the blank, the deviation from the plane strain state in the flange deformation path decreased the orientation density around P {0 1 1}[8 11 <(11)over bar>] and shifted the final stable end orientation from P to Y-f near {1 1 1} [<(11)over bar> 2]. The texture evolution in AA1050 sheet metals during deep drawing was experimentally investigated. The change of orientation density around ideal orientations in the RD and TD samples was in good agreement with the rate-sensitive polycrystal model. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：1571 / 1592
页数：22
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