English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 6507/11669
造訪人次 : 29720291      線上人數 : 427
RC Version 3.2 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
搜尋範圍 進階搜尋

請使用永久網址來引用或連結此文件: http://ir.ncue.edu.tw/ir/handle/987654321/13375

題名: Investigation into equal channel angular extrusion process of billet with internal defects
作者: Chen, Dyi-Cheng;Chen, Ching-Pin
貢獻者: 工業教育與技術學系 
關鍵詞: Equal channel angular (ECA) extrusion;Rigid-plastic finite element;Defective voids
日期: 2008-08
上傳時間: 2012-08-27T05:53:09Z
出版者: Elsevier B.V
摘要: The shear plastic deformation behavior of a material during equal channel angular (ECA) extrusion is governed primarily by the die geometry, the material properties, and the process conditions. This study uses the commercial DEFORM(TM) 2D (two-dimensional) rigid-plastic finite element code to investigate the plastic deformation behavior of materials with internal defective voids during 1- and 2-turn ECA extrusion processing. The present simulations investigate the damage factor distributions, the total velocity distributions, the rotation angle distributions, the void dimension, and the stress-strain distributions around the defective voids under various extrusion conditions. The mesh element increase of the billet mesh in the 2-turn ECA extrusion process is also investigated. The present numerical results provide valuable insights into the shear plastic deformation behavior of materials containing defective voids in the ECA extrusion process.
關聯: Journal of Materials Processing Technology, 204(1-3): 419-424
顯示於類別:[工業教育與技術學系] 期刊論文

文件中的檔案:

檔案 大小格式瀏覽次數
index.html0KbHTML621檢視/開啟


在NCUEIR中所有的資料項目都受到原著作權保護.

 


DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - 回饋