فهرس المقالات Two-directional functionally graded material حرية الوصول المقاله صفحة الملخص نص كامل 1 - A Power Series Solution for Free Vibration of Variable Thickness Mindlin Circular Plates with Two-Directional Material Heterogeneity and Elastic Foundations M.M Alipour M Shariyat حرية الوصول المقاله صفحة الملخص نص كامل 2 - Stress Analysis of Two-directional FGM Moderately Thick Constrained Circular Plates with Non-uniform Load and Substrate Stiffness Distributions M.M Alipour M Shariyat