شماره ركورد كنفرانس :
4703
عنوان مقاله :
Buckling and vibration analysis of functionally graded cylindrical shells with variable thickness resting on elastic foundation
عنوان به زبان ديگر :
Buckling and vibration analysis of functionally graded cylindrical shells with variable thickness resting on elastic foundation
پديدآورندگان :
Sirati Davoud davoud.sirati@gmail.com Karaj Branch, Islamic Azad University; , Khanahmadloo Alireza Alireza.Khanahmadloo@gmail.com Takestan Branch, Islamic Azad University; , Ajori Yaddollah sakineh.bayat@gmail.com Armament Industries Shohadaye Hadid; , Hamzezade Ramin sakineh.bayat@gmail.com Armament Industries Shohadaye Hadid; , Zargar Saber sakineh.bayat@gmail.com Armament Industries Shohadaye Hadid;
كليدواژه :
Buckling , Cylindrical Shell , FGM , Free Vibration , Variable Thickness
عنوان كنفرانس :
چهارمين كنفرانس ملي پژوهش هاي كاربردي در مهندسي برق، مكانيك و مكاترونيك
چكيده فارسي :
This paper investigates buckling and free vibration analysis of functionally graded cylindrical shells with variable thickness resting on elastic foundation (Winkler-Pasternak) using first-order shear deformation shell theory. Equations of motion are derived from Hamilton’s principle. The Navier-type solution is used for simply-supported boundary condition, and exact formulas are proposed for buckling and free vibration analysis. The material properties are graded in the thickness direction according to a power law. An accuracy of the present solutions is validated numerically by comparisons with some available results in the literature. Good agreement is observed. The parametric study is carried out to discuss the effects of gradient index, geometrical properties and elastic foundation constants on the buckling loads and frequency behavior of functionally graded cylindrical shell with variable thickness resting on elastic foundation.
چكيده لاتين :
This paper investigates buckling and free vibration analysis of functionally graded cylindrical shells with variable thickness resting on elastic foundation (Winkler-Pasternak) using first-order shear deformation shell theory. Equations of motion are derived from Hamilton’s principle. The Navier-type solution is used for simply-supported boundary condition, and exact formulas are proposed for buckling and free vibration analysis. The material properties are graded in the thickness direction according to a power law. An accuracy of the present solutions is validated numerically by comparisons with some available results in the literature. Good agreement is observed. The parametric study is carried out to discuss the effects of gradient index, geometrical properties and elastic foundation constants on the buckling loads and frequency behavior of functionally graded cylindrical shell with variable thickness resting on elastic foundation.
