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   Effect of External Pressures on Vibration of Thin-Walled Cylindrical Shell Supported Composed of Functionally Graded Materials  
   
نویسنده Isvandzibaei Mohammad Reza
منبع Journal Of Advanced Materials And Processing - 2018 - دوره : 6 - شماره : 1 - صفحه:58 -70
چکیده    This paper presents the study on influence external pressures on vibration of functionally graded materials thin-walled cylindrical shell supported. the functionally graded materials (fgms) properties are graded in the thickness direction of the shell. fgms are advanced composite materials, consisting of different types of materials, in which the properties shift continuously from one material on the one side to another material on the other side with a specific gradient. the fgm cylindrical shell supported equations with external pressure are established based on classical shell theory with beam functions as axial modal function. the governing equations of motion were employed, using energy functional and by applying the ritz method. the boundary conditions represented by end conditions of the fgm structure which are sliding-sliding, clamped- free and clamped-simply supported being considered. this problem was solved with computer programming using maple package. comparison results are carried out to verify the validity with published papers. the influence of the external pressures, loop support and effect of the different boundary conditions on natural frequencies of fgm thin-walled cylindrical shell are studied.
کلیدواژه External Pressure ,Fgm ,Loop Support ,Shell ,Thin-Walled
آدرس Islamic Azad University, Andimeshk Branch, Department Of Mechanical Engineering, Iran
پست الکترونیکی esvandzebaei@yahoo.com
 
     
   
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