TY - RPRT TI - Efficient derivative computation for unsteady fatigue-constrained nonlinear aero-structural wind turbine blade optimization AU - Cardoza, Adam [Brigham Young University, Provo, UT (United States)] (ORCID:0009000653424028) AU - Ning, Andrew [Brigham Young University, Provo, UT (United States); National Laboratory of the Rockies (NLR), Golden, CO (United States)] (ORCID:000000032190823X) PY - 2026 DO - 10.5194/wes-11-1487-2026 UR - https://www.osti.gov/biblio/3362763 ID - 3362763 ER -