کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8157415 1524861 2014 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A nonlinear magnetoelectric model for magnetoelectric layered composite with coupling stress
ترجمه فارسی عنوان
یک مدل مغناطیس الکتریکی غیر خطی برای کامپوزیت لایه ای مگنتوالکتریک با استرس اتصال
کلمات کلیدی
اثر مغناطیسی، استرس اتصال، کامپوزیت لایه ای تغییر شکل انعطاف پذیر،
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
چکیده انگلیسی
Based on a linear piezoelectric relation and a nonlinear magnetostrictive constitutive relation, A nonlinear magnetoelectric (ME) effect model for flexural layered ME composites is established in in-plane magnetic field. In the proposed model, the true coupling stress and the equivalent piezomagnetic coefficient are taken into account and obtained through an iterative approach. Some calculations on nonlinear ME coefficient are conducted and discussed. Our results show that for both the flexural bilayer and trilayer composites, the true coupling stress in the composites first increase and then approach to a constant value with the increase of applied magnetic fields, affecting the nonlinear ME effect significantly. With consideration of the true coupling stress, the ME effect is smaller than that without consideration of the true coupling stress. Moreover, the proposed theoretical model predicts that the ME coefficient of the trilayer composite (does not generate the bending deflection) is much larger than that of bilayer composite (generates the bending deflection), which is in well agreement with the previous works. The influences of the applied magnetic field on the true coupling stress and fraction ratio corresponding to the extreme ME coefficients of layered structures are also investigated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 360, June 2014, Pages 131-136
نویسندگان
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