کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1576474 1514782 2013 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An analysis on necking effect and stress distribution in round cross-section specimens of pure copper with different diameters
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
An analysis on necking effect and stress distribution in round cross-section specimens of pure copper with different diameters
چکیده انگلیسی

The size dependence of the tensile properties and necking effect of pure copper exposed to various heat treatments are investigated in this paper using round bar cross-section specimens through experimental and 3D finite element methods (FEM). The results show that the total and post-necking elongation increased dramatically as the specimen diameter increased. The size effects on necking and stress distribution of different diameter specimens are analysed. These results show that the post-necking deformation length is only dependent on the diameter of the specimens and is independent of the specimen’s gauge length, which results in the size dependence of the post-necking elongation. Moreover, FEM simulations show that the size dependence of the tensile properties can be eliminated when the ratio of the gauge length to the diameter is larger than 10.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 561, 20 January 2013, Pages 183–190
نویسندگان
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