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Fatigue Life of Megawatt-Scale Composite Wind Turbine Blades with Shallow-Angled Laminates

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Mechanics of Composite Materials Aims and scope

The fatigue life of megawatt-scale composite wind turbine blades implemented with shallow-angled laminates is investigated. Full dynamic simulations of a 5-MW 3-bladed horizontal-axis wind turbine were carried out to estimate the incident fatigue loads. The fatigue stress histories experienced by lay up materials were then computed using a finite-element model of the composite blade developed to ply-level details. Thereafter, the fatigue life of blade was estimated considering the 100% availability of the turbine for the site-specific annual wind distribution related to the wind turbine class IB. It is demonstrated that the application of shallow-angled laminates leads to a more durable design.

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Acknowledgement

This work was funded by the Higher Education Commission of Pakistan and Hanyang University, South Korea.

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Authors and Affiliations

  1. Department of Mechanical Engineering, the University of Lahore, Lahore, Pakistan

    K. Hayat

  2. Department of Mechanical Engineering, Hanyang University, Seoul, South Korea

    S. K. Ha

  3. Department of Mechanical Engineering, the University of Management & Technology, Lahore, Pakistan

    T. Sultan & Z. Ahmad

Authors
  1. K. Hayat
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  2. S. K. Ha
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  3. T. Sultan
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  4. Z. Ahmad
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Corresponding author

Correspondence to K. Hayat.

Additional information

Russian translation published in Mekhanika Kompozitnykh Materialov, Vol. 55, No. 4, pp. 697-714, July-August, 2019.

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Hayat, K., Ha, S.K., Sultan, T. et al. Fatigue Life of Megawatt-Scale Composite Wind Turbine Blades with Shallow-Angled Laminates. Mech Compos Mater 55, 483–494 (2019). https://doi.org/10.1007/s11029-019-09827-8

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  • DOI: https://doi.org/10.1007/s11029-019-09827-8

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