کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
760537 896547 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Wave propagation in piezoelectric/piezomagnetic layered periodic composites
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
Wave propagation in piezoelectric/piezomagnetic layered periodic composites
چکیده انگلیسی

This paper is concerned with the dynamic behaviors of wave propagation in layered periodic composites consisting of piezoelectric and piezomagnetic phases. The dispersion relations of Lamb waves are derived. Dispersion curves and displacement fields are calculated with different piezoelectric volume fractions. Numerical results for BaTiO3/CoFe2O4 composites show that the dispersion curves resemble the symmetric Lamb waves in a plate. Exchange between the longitudinal (i.e. thickness) mode and coupled mode takes place at the crossover point between dispersion curves of the first two branches. With the increase of BaTiO3 volume fraction, the crossover point appears at a lower wave number and wave velocity is higher. These findings are useful for magnetoelectric transducer applications.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Mechanica Solida Sinica - Volume 21, Issue 6, December 2008, Pages 483-490