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A constitutive model for composite laminated plates with the damage effect of the intra-layers and inter-laminar interface is presented.The model is based on the general six-degrees- of-freedom plate theory,the discontinuity of displacement on the interfaces are depicted by three shape functions,which are formulated according to solutions satisfying three equilibrium equa- tions.By using the variation principle,the three-dimensional non-linear equilibrium differential equations of the laminated plates with two different damage models are derived.Then,consid- ering a simply supported laminated plate with damage,an analytical solution is presented using finite difference method to obtain the inter-laminar stresses.
A constitutive model for composite laminated plates with the damage effect of the intra-layers and inter-laminar interface is presented. The model is based on the general six-degrees-of-freedom plate theory, the discontinuity of displacement on the interfaces is depicted by three shape functions, which are formulated according to solutions satisfying three equilibrium equa- tions. By using the variation principle, the three-dimensional non-linear equilibrium differential equations of the laminated plates with two different damage models are derived. ering a simply supported laminated plate with damage, an analytical solution is presented using finite difference method to obtain the inter-laminar stresses.