فهرس المقالات Euler Bernoulli and Timoshenko beam theories حرية الوصول المقاله صفحة الملخص نص كامل 1 - Nonlinear Free Vibration Analysis of Functionally Graded Sandwich Beam with Magnetorheological Fluid Core Using Timoshenko Beam Theory Omid Miraliyari Saeed Jafari Mehrabadi Mohammad Mahdi Najafizadeh https://doi.org/10.60664/jsm.2023.1081713