ULTIMATE FAILURE ANALYSIS OF 100-METER-CLASS BLADES BASED ON FULL-SCALE TESTING

Zhao Jian&#x02019;gang; Wang Bowen; Zhang Wenwei; Feng Xuebin; Deng Hang; Liu Penghui

doi:10.19912/j.0254-0096.tynxb.2024-0522

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (8) : 33-38. DOI: 10.19912/j.0254-0096.tynxb.2024-0522

ULTIMATE FAILURE ANALYSIS OF 100-METER-CLASS BLADES BASED ON FULL-SCALE TESTING

Zhao Jian’gang, Wang Bowen, Zhang Wenwei, Feng Xuebin, Deng Hang, Liu Penghui

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Abstract

To study the damage response of 100-meter-class wind turbine blades under combined ultimate loads, this paper conducted a full-size ultimate load capacity test on the TMT90m+ blade of Zhu Zhou Times New Material Technology Co., Ltd. The failure mechanism of the blade is investigated through test monitoring, strain data analysis, and nonlinear finite element simulation. The results show that structural nonlinearity and material nonlinearity lead to stress concentration in the local area of the blade when carrying high-level loads, which in turn promotes the occureence of local buckling. The early failure of the individual regions accelerates the weakening of local stiffness and stability by local buckling, thus leading to the final fracture failure of the blade.

Key words

wind turbine blades / composite material / finite element analysis / full-scale test / local buckling

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Zhao Jian’gang, Wang Bowen, Zhang Wenwei, Feng Xuebin, Deng Hang, Liu Penghui. ULTIMATE FAILURE ANALYSIS OF 100-METER-CLASS BLADES BASED ON FULL-SCALE TESTING[J]. Acta Energiae Solaris Sinica. 2025, 46(8): 33-38 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0522

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