FINITE ELEMENT ANALYSIS OF DEFORMATION CHARACTERISTICS IN HEAVY SLAB ROLLING

被引：14
|
作者：
Ji, Yo-Han [1 ]
Park, Jong-Jin [1 ]
Moon, Chang-Ho [2 ]
Chun, Myung-Shik [2 ]
Park, Hae-Doo [2 ]
机构：
[1] Hongik Univ, Dept Mech & Syst Design Engn, Seoul 121791, South Korea
[2] POSCO, Tech Res Labs, Pohang 790785, Gyeongbuk, South Korea
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 2009年 / 23卷 / 6-7期
关键词：
Plastic deformation; rolling; pore closure; effective strain; finite element analysis;
D O I：
10.1142/S0217979209061317
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Plastic deformation that occurs in a heavy slab during plane-strain rolling was investigated by the finite element analysis. A cylindrical pore was assumed to be located along the transverse direction of a slab. The effective strain was found to be the largest at the sub-surface layer and the smallest at the middle layer, where the shear strain developed the least. Pore closure was most difficult at the middle layer. This is where hydrostatic stress in addition to effective strain developed the least. Rolling torques, rolling forces and pressure distributions at the roll/slab interface were investigated as well, under various conditions.
引用
收藏
页码：1591 / 1596
页数：6
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