Experimental demonstration of strain-based damage method for optimized fatigue testing of wind turbine blades

Castro, 2021, Optimized method for multi-axial fatigue testing of wind turbine blades, Compos Struct, 257, 10.1016/j.compstruct.2020.113358 Castro, 2021, Bending-moment-based approach to match damage-equivalent strains in fatigue testing, Eng Struct, 226, 10.1016/j.engstruct.2020.111325 Yoders J. Are four wind-turbine failures in five weeks too many for NextEra Energy? URL https://www.enr.com/articles/42352-are-four-wind-turbine-failures-in-five-weeks-too-many-for-nextera-energy. van Delft, 1988, Fatigue testing of a full scale steel rotor blade of the WPS-30 wind turbine, J Wind Eng Ind Aerodyn, 27, 1, 10.1016/0167-6105(88)90019-0 Musial, 1993, Test methodology and control of full-scale fatigue tests on wind turbine blades, Am Soc Mech Eng, Solar Energy Div (Publication) Sed, 14, 199 Hughes, 1999 White, 2004 Bürkner, 2011, Testing of rotor blades, 3511 Beckwith, 2013, Development of a dual-axis phase-locked excitation (PhLEX) resonant fatigue test method for wind turbine blades Beckwith, 2014 Snowberg, 2014 Post, 2016 Melcher, 2019, A novel rotor blade fatigue test setup with elliptical biaxial resonant excitation, Wind Energy Sci Discuss, 2019, 1 Offshore blades: bigger, better, and built for the future. The Siemens Gamesa B108 blade is now a reality, URL https://www.siemensgamesa.com/en-int/explore/journal/2021/03/siemens-gamesa-offshore-blades. IEC, 2014 DNV-GL, 2015 Melcher, 2020, Proof of concept: Elliptical biaxial rotor blade fatigue test with resonant excitation, IOP Conf Ser: Mater Sci Eng, 942, 10.1088/1757-899X/942/1/012007 IEC, 2019 Olsen Wings A/S, URL http://olsenwings.dk/. Moog, URL https://www.moog.com/. GANTNER, URL https://www.gantner.com/. IEC, 2015 Bertolini, 2019, Comparison of stress distributions between numerical cross-section analysis and 3D analysis of tapered beams