A study of the application of upper bound method to the CONFORM process

A study of the application of upper bound method to the CONFORM process
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DOI:
10.1016/s0924-0136(99)00366-0
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发表时间:
2000-01-01
影响因子:
6.3
通讯作者:
Yoon, SS
Yoon, SS
中科院分区:
材料科学1区
文献类型:
--
作者:
Kim, YH;Cho, JR;Yoon, SS

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本文讨论稳态CONFORM过程所需功率的计算。为了实现这一目标,将相似性应用于等效侧挤压过程的CONFORM过程,并采用上限法推导出计算功率的方程。尽管真实的和简化的过程之间的整体流动特性并不相似,但两个过程的计算结果显示出良好的一致性。此外,有限元模拟进行了使用DEFORM商业程序,以验证理论结果。(C)2000 Elsevier Science S.A. All rights reserved.
This paper is concerned with the calculation of the powers required in the steady-state CONFORM process. For this goal, similarity is applied to the CONFORM process for an equivalent side extrusion process, to which the upper bound method is used to derive the equation for calculating the powers. Even though the global flow characteristics between the real and the simplified processes are not similar, the calculated results for both processes show good agreement. Furthermore, FEM simulation is carried out using the DEFORM commercial program in order to verify the theoretical results. (C) 2000 Elsevier Science S.A. All rights reserved.