Hygro-Thermal Nonlinear Analysis of a Functionally Graded Beam

Nonlinear behaviour of a functionally graded cantilever beam is analyzed under non-uniform hygro-thermal effect. In the solution of problem, finite element method is used within plane solid continua. Total Lagrangian approach is used in the nonlinear kinematic relations. In nonlinear solution, Newton-Raphson method is used with incremental displacement. Comparison study is performed. Effects of material distribution, temperature and moisture changes on nonlinear deflections of the functionally graded beam are presented and discussed.