TY - JFULL AU - M. Amiri PY - 2016/8/ TI - Investigation of Stability of Functionally Graded Material when Encountering Periodic Loading T2 - International Journal of Mechanical and Mechatronics Engineering SP - 1346 EP - 1353 VL - 10 SN - 1307-6892 UR - https://publications.waset.org/pdf/10005711 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 115, 2016 N2 - In this work, functionally graded materials (FGMs), subjected to loading, which varies with time has been studied. The material properties of FGM are changing through the thickness of material as power law distribution. The conical shells have been chosen for this study so in the first step capability equations for FGM have been obtained. With Galerkin method, these equations have been replaced with time dependant differential equations with variable coefficient. These equations have solved for different initial conditions with variation methods. Important parameters in loading conditions are semi-vertex angle, external pressure and material properties. Results validation has been done by comparison between with those in previous studies of other researchers. ER -