NONLINEAR STATIC AEROELASTIC BEHAVIOR OF COMPOSITE MISSILE FIN WITH INTERLAMINAR DAMAGE

Ozge OZKAYA and Altan KAYRAN

Nonlinear static aeroelastic behavior of a basic composite missile fin is analyzed by means of two-way coupled FSI simulation and the effects of composite damages are presented. The configuration has been simulated by coupling the two commercial solvers ANSYS CFX for the fluid mechanical simulation with ANSYS Mechanical for the structural simulation. 3D composite fin geometry is constructed using ANSYS ACP tool. Interlaminar damage cases were investigated and the influence of the damage locations on the static aeroelastic behavior is discussed. It is shown that for the cases investigated, leading and trailing edge delamination in the compressive zone of the composite laminate of the fin are more critical in terms of their effect on the static aeroelastic response of the composite missile fin under the flow conditions analyzed.

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