%0 Journal Article %T Nonlinear thermo %A Dang Thuy Dong %A Ho Duc Tuan %A Nguyen Thi Phuong %A Vu Hoai Nam %J Journal of Reinforced Plastics and Composites %@ 1530-7964 %D 2019 %R 10.1177/0731684419831650 %X This paper presents an analytical approach to investigate the nonlinear stability of multilayer-functionally graded plates stiffened by orthogonal and/or oblique functionally graded stiffeners subjected to axial compression and/or thermal load. The equilibrium equation system is established by using the first-order shear deformation plate theory taking into account the plate¨Cfoundation interaction, geometrical nonlinearity in von K¨¢rm¨¢n sense and initial geometrical imperfection. An improved Lekhnitskii¡¯s smeared stiffener technique is applied for oblique stiffeners with thermal terms and shear deformation of stiffeners. The governing equations are solved by Galerkin procedure to obtain the explicit expressions of buckling loads and postbuckling load¨Cdeflection curves. Results show the effects of material and geometrical properties, boundary conditions, elastic foundation parameters and initial imperfection on the buckling and postbuckling load-carrying capacity of plates %K Multilayer-FG plate %K thermo-mechanical stability %K FG stiffener %K elastic foundation %U https://journals.sagepub.com/doi/full/10.1177/0731684419831650