Finite Element Analysis of Different Infill Patterns for 3D Printed Tidal Turbine Blade

The fabrication route for tidal turbine blades has been compounded with the appearance of additive manufacturing; use infill patterns, improvement mechanical strength and material reduction 3D printed parts can be obtained. Through finite element analysis three-point bend tests, optimal lattice pattern, viability shell–infill blade model as an alternative to conventional shell-spar was determined. Out a selection infills, best pattern determined hexagonal oriented in-plane. A representative volume modeled in ANSYS Material Designer, resulting homogenized properties in-plane lattice. After validation, were applied blade. based on final which had deflection 9.720% length. difference between spar cross-section 0.00125% maximum stress 170.3 MPa within tensile flexure carbon fiber onyx base material. Conclusively, suitable cross-section. orientation relative horizontal 0 degrees; however, lack trend made it inconclusive whether degrees absolute orientation.