کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
832982 908128 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Variation of elastic modulus during plastic deformation and its influence on springback
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Variation of elastic modulus during plastic deformation and its influence on springback
چکیده انگلیسی

Inelastic recovery behavior of TRIP steels during unloading has been investigated by uniaxial tensile tests. Unloading stress–strain curves obtained under different plastic strain indicated that the percentage of inelastic recovery to the total recovery increased with plastic deformation. An empirical expression describing the relation of elastic modulus with plastic strain has been proposed. Then the expression was implemented into LS-DYNA software to simulate U-channel springback. Comparison showed that springback simulation with a varied elastic modulus was more precise than that with a constant elastic modulus. Inelastic recovery needs be considered in order to improve springback simulation precision.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials & Design - Volume 30, Issue 3, March 2009, Pages 846–850
نویسندگان
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