中國有色金屬學(xué)報(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 7 No. 4 December 1997 |
COUPLED THERMO-MECHANICAL FEM ANALYSIS OF TWIST COMPRESSION DEFORMATION PROCESS
Xue Kemin; Zhang Zhengrong; Xia Yongjiang; Lu Yan
（Metal Forming Division; #435; Harbin Institute of Technology; Harbin 150001）
Abstract:D rigid viscoplastic FEM of compressible materials was applied to analyze the deformation behavior during twist compression forming of axisymmetrical body at high temperatures. When calculating the temperature fields, considering the thermo mechanical coupling effect between temperature and deformation, 2 D FEM and CNG methods were adopted, and the up winding technique was used to avoid the influences of numerical instability on calculated results.
Key words: twist compression rigid viscoplastic FEM thermo mechanical coupling
