List of Articles Two-directional functionally graded material Open Access Article Abstract Page Full-Text 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 20.1001.1.20083505.2011.3.2.7.2 Open Access Article Abstract Page Full-Text 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 20.1001.1.20083505.2010.2.4.2.4