The problem of buckling of general triangular anisotropic plates with
different boundary conditions subjected to combined in-plane loads is
considered. Solutions for plate buckling are obtained by using a Rayle
igh-Ritz method combined with a variational formulation. The Ritz func
tions consist of polynomials that include circulation functions that a
re used to impose various boundary conditions. Both classical laminate
d-plate theory and first-order shear-deformation theory are used. Nume
rical buckling results obtained for isotropic and anisotropic triangul
ar plates are compared with results from existing series solutions.