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International Journal of Engineering، جلد ۲۷، شماره ۳، صفحات ۴۲۵-۴۳۰
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عنوان انگلیسی Development of a Predictive Finite Element Model For Investigation of Phases Behavior After Cold Rolling Process
چکیده انگلیسی مقاله  One of the surface defects that arise in sheet metal working is when the part removes from the die. Since there are no external forces to make this defect, the origin of such fail is known as residual stress. Residual stress can develop in sheet metal forming due to non uniform deformation. In this paper, the workpiece is carbon steel with different volume fractions and arrangement of ferrite and pearlite. Due to different stress-strain curve of each phase, after cold rolling, one phase deforms elastically, whereas the other undergoes on elastic-plastic deformation. On unloading to zero applied stress, this effect can produce residual stress. Therefore, in order to reduce the surface defects in sheet metal forming, an intelligent predictive code using a validated elastic plastic finite element method is generated for a plain strain deformation of cold rolling process. Results obtained show that in regular arrangement of ferrite and pearlite, workpiece microstructure has great influence on the residual stress distribution and by decreasing the width of each strip; the fluctuation of residual stress is reduced. The purpose of this study is developing the state of the art instructions for arrangement of phases after hot rolling process which the total residual stress produced after cold rolling and sheet metal working will be minimized.
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نویسندگان مقاله Sareh Esmaeili |
Mechanical Engineering, University of Guilan

soheila sojodi |
Mechanical Engineering, University of Guilan

نشانی اینترنتی http://www.ije.ir/article_72270_affcb2c758690de0d90668ad2d3e40c3.pdf
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/409/article-409-2062765.pdf
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زبان مقاله منتشر شده en
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