E Bagherizadeh - Graduate student
Y Kiani - Graduate student
M.R Eslami - ,۴Professor, Department of Mechanical Engineering, Amirkabir University, Hafez street Tehran
M Sadighi. - Professor, Department of Mechanical Engineering, Amirkabir University, Hafez street Tehran

This research inspects the elastic buckling of FGM cylindrical shell, resting on two-parameters elastic foundation, subjected to external pressure load. Material properties of functionally graded cylindrical shell are graded in the thickness direction according to a power law direction. Theoretical formulations are derived based on the classical shell theory. The effects of shell geometry, volume fraction exponent, and foundation parameters on critical buckling load of FGM cylindrical shells are investigated. It is inferred from the results that the elastic foundation postpones the critical buckling load and swifts mode shapes of elastic buckling.

mechanical buckling, FGM cylindrical shell, Pasternak foundation, classic theory