فهرس المقالات Longitudinal variations of elastic modulus حرية الوصول المقاله صفحة الملخص نص كامل 1 - Semi Analytical Analysis of FGM Thick-Walled Cylindrical Pressure Vessel with Longitudinal Variation of Elastic Modulus under Internal Pressure M Shariati H Sadeghi M Ghannad H Gharooni