| In this paper, a stiffened composite laminated plate element formulation is deduced, which is based on the Mindlin first order shear effect theory. A study of buckling behavior for the stiffened composite laminated plates with delamination damage under compressive loading is presented. Form numerical results and discussion of some typical examples, it is clear that the effects of the distribution of the stiffener, configulation, location and length of the delamination on buckling characteristic and mode are significant. The numerical method and conclusions provided in the paper are useful for engineers of composite structures. |