Development of an anisotropic co-rotational beam model including variable cross-section
Hyeongmin Moon, Haeseong Cho, Stephanos Theodossiades, Taeseong Kim
Abstract
The aim of this article is to expand the general approach of the flexible beam model to consider tapered geometry and anisotropic properties by updating the cross-sectional stiffness matrix. The advantage of this approach is that continuously variable cross-section, as well as irregular axes on the cross-sections, are considered simultaneously by the co-rotational method. Anisotropic and isotropic cantilevered beam cases are simulated. A static force or moment is applied as the external load. NREL 5 MW wind turbine blade is analyzed as a practical example. The results are compared against the existing literature and ABAQUS model, and they show excellent agreement.
Topics & Concepts
IsotropyAnisotropyCantileverBeam (structure)Cross section (physics)StiffnessTurbine bladeStructural engineeringBlade (archaeology)Moment (physics)Section (typography)Variable (mathematics)Stiffness matrixMaterials scienceTurbineEngineeringPhysicsMechanical engineeringMathematicsClassical mechanicsMathematical analysisComputer scienceOpticsOperating systemQuantum mechanicsStructural Load-Bearing AnalysisStructural Analysis and OptimizationVibration and Dynamic Analysis