The static characteristics of an exponentially inhomogeneous plate under a transverse
uniform loading and exposed to hygrothermal conditions are studied. The elastic
coefficients, thermal coefficient and moisture expansion coefficient of the plate are
assumed to be exponentially graded in the thickness direction. The trigonometric
shear deformation theory solution is presented. In this solution, the initial terms of a
power series through the plate thickness are used for the displacements in addition to
other trigonometric terms. The effect due to transverse shear deformations is
included. A number of examples will be solved to illustrate the numerical
results concerning bending response of homogeneous and exponentially graded
rectangular plates subjected to hygrothermomechanical effects. The influences of
temperature, moisture concentration, transverse shear deformation, plate aspect
ratio, and the exponentially graded parameter on the bending response are
investigated.