Based　on　the　classical　nonlinear　von　Karman　plate　theory,　axisymmetric　large　deflection　bending　of　a　functionally　graded　circular　plate　is　investigated　under　mechanical,　thermal　and　combined　thermal-mechanical　loadings,　respectively,　and　axisymmetric　thermal　post-buckling　behavior　of　a　functionally　graded　circular　plate　is　also　investigated.　The　mechanical　and　thermal　properties　of　functionally　graded　material　(FGM)　are　assumed　to　vary　continuously　through　the　thickness　of　the　plate,　and　obey　a　simple　power　law　of　the　volume　fraction　of　the　constituents.　Governing　equations　for　the　problem　are　derived,　and　then　a　shooting　method　is　employed　to　numerically　solve　the　equations.　Effects　of　material　constant　n　and　boundary　conditions　on　the　temperature　distribution,　nonlinear　bending,　critical　buckling　temperature　and　thermal　post-buckling　behavior　of　the　FGM　plate　are　discussed　in　details.　(C)　2003　Elsevier　Science　Ltd.　All　rights　reserved.