Numerical simulation analysis for identification of areas of high stress-concentration in a turbine wind-blade-Reinforcements scenarios
Composite materials are the best consideration for harsh environment and deep sea wind turbine manufacturing.In this study,numerical simulation was implemented to predict stress distribution over a large wind turbine-blade and to determine areas with high stress concentration.This study leads existing scenarios and techniques which would provide new and better solutions for wind turbine blade designers.The root section and trailing edge were found to be critical zones in the wind turbine blade.The root section failure can be reduced by adjusting the thickness of the structure or increasing the number of plies in the composites laminate stacking.The material properties of the plies need to be optimized in order to withstand flap-wise bending-torsion coupling load.The trailing-edge failure can be prevented by adhesive bonding reinforcements.Adhesive materials are not easy to optimize,as they have isotropic behavior.Separation of the bonding material from composite blade components can lead to serious problems.Therefore attaching bonding and composite material by means of additional reinforcement would help to reduce the failure.The technique called stitching was considered and proved to improve the adhesive material damage.Finite Element Analysis was performed to address the behavior of trailing-edge of wind blades with reinforcements in the form of stitching.Numerical results prove that the adhesive bonding with stitching is highly advised to reinforce the bonding zones in the large-scale wind turbine blade.
Wind Turbine Blade Composite Materials Stitching Finite Element Analysis
Venkadesh RAMAN Monssef DRISSI-HABTI Aghiad KHADOUR
Institut de Recherche Technologique J.VERNE,44340 Bouguenais,France PRES LUNAM IFSTTAR,CS4 Route de Bouaye 44344 Bouguenais France
国际会议
新加坡
英文
1-8
2017-07-19（万方平台首次上网日期，不代表论文的发表时间）