Prediction of earing in deep drawing of anisotropic aluminum alloy sheet using BBC2003 yield criterion
Publish place: Journal of Computational and Applied Research in Mechanical Engineering، Vol: 6، Issue: 2
Publish Year: 1395
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JCARME-6-2_004
تاریخ نمایه سازی: 7 شهریور 1396
Abstract:
This paper investigates the earing phenomenon in deep drawing of AA3105 aluminum alloy, experimentally and numerically. Earing defect is mainly attributed to the plastic anisotropy of sheet metal. In order to control such defect, predicting the evolution of ears in sheet metal forming analyses becomes indispensable. In this regard, the present study implements the advanced yield criterion BBC2003. Based on this yield function and theassociated flow rule of plasticity, the constitutive model is derived. Accordingly, a user material VUMAT subroutine is developed and adopted in the commercial finite element software ABAQUS/Explicit. Several planestress loading problems are designed, through which, the accuracy of the developed subroutine is verified. In addition, cylindrical cups of AA3105 aluminum alloy are fabricated using a deep drawing die. The earing defectwas clearly observed on the recovered parts. Using the experimentally obtained constants of BBC2003 yield criterion for this alloy in VUMAT, deep drawing of the cylindrical cups was simulated. The results demonstrate that the earing profile can successfully be predicted using BBC2003 yield function.
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Authors
s Izadpanah
School of Mechanical Engineering, Shahrood University of Technology, Shahrood ۳۶۱۹۹۹۵۱۶۱, Iran
s.h Ghaderi
School of Mechanical Engineering, Shahrood University of Technology, Shahrood ۳۶۱۹۹۹۵۱۶۱, Iran
m Gerdooei
School of Mechanical Engineering, Shahrood University of Technology, Shahrood ۳۶۱۹۹۹۵۱۶۱, Iran