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INTERLAMINAR STRESS ANALYSIS IN A ROTATING COMPOSITE BEAM

Interlaminar stresses play an important role in the delamination failure of composite structures. In this study, a Third-Order Shear Deformation Beam Theory (TSDBT) is used to analyze interlaminar stresses in a generally laminated rotating composite beam. Equations of motion are obtained by assuming a suitable diplacement field and using Hamiltonʹs principle. Three dimensional stress field is determined by using Hookeʹs law and by integrating the local equations of motion. The results obtained within this theory are compared with those of a finite element analysis.