کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8153984 | 1524772 | 2018 | 24 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Feasibility study of determining axial stress in ferromagnetic bars using reciprocal amplitude of initial differential susceptibility obtained from static magnetization by permanent magnets
ترجمه فارسی عنوان
بررسی امکان سنجی تعیین استرس محوری در میله های فرو مغناطیسی با استفاده از دامنه متقابل حساسیت اولیه دیفرانسیل به دست آمده از مغناطیس استاتیک توسط آهنرباهای دائمی
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
چکیده انگلیسی
An electromagnetic method for determining axial stress in ferromagnetic bars is proposed. In this method, the tested bar is under the static magnetization provided by permanent magnets. The tested bar do not have to be magnetized up to the technical saturation because reciprocal amplitude of initial differential susceptibility (RAIDS) is adopted as the feature parameter. RAIDS is calculated from the radial magnetic flux density Br Loâ¯=â¯0.5 at the Lift-off Loâ¯=â¯0.5â¯mm, radial magnetic flux density Br Loâ¯=â¯1 at the Lift-off Loâ¯=â¯1â¯mm and axial magnetic flux density Bz Loâ¯=â¯1 at the Lift-off Loâ¯=â¯1â¯mm from the surface of the tested bar. Firstly, the theoretical derivation of RAIDS is carried out according to Gauss' law for magnetism, Ampere's Law and the Rayleigh relation in Rayleigh region. Secondly, the experimental system is set up for a 2-meter length and 20â¯mm diameter steel bar. Thirdly, an experiment is carried out on the steel bar to analyze the relationship between the obtained RAIDS and the axial stress. Experimental results show that the obtained RAIDS decreases almost linearly with the increment of the axial stress inside the steel bar in the initial elastic region. The proposed method has the potential to determine tensile axial stress in the slender cylindrical ferromagnetic bar.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 449, 1 March 2018, Pages 243-256
Journal: Journal of Magnetism and Magnetic Materials - Volume 449, 1 March 2018, Pages 243-256
نویسندگان
Dongge Deng, Xinjun Wu,