Damage Assessment of Hydrokinetic Composite Turbine Blades
Damage assessment of composite blades is investigated for hydrokinetic turbine applications in which lowvelocity impact damage is possible. The blades are carbon/epoxy laminates that are made using an out-of-autoclave process and the blade design is a hydrofoil with constant cross-section. Both undamaged and damaged blades are manufactured and instrumented with strain sensors. Water tunnel testing is conducted with varying flow velocities and for different blade angles. A theoretical simulation is included that is based on finite-element method. The influence of damage on the response characteristics is discussed as an indicator of structural health.
S. E. Watkins et al., "Damage Assessment of Hydrokinetic Composite Turbine Blades," SPIE Proceedings, SPIE, Jan 2013.
The definitive version is available at https://doi.org/10.1117/12.2009840
Electrical and Computer Engineering
Mechanical and Aerospace Engineering
Keywords and Phrases
Carbon; Composites; Epoxies; Sensors; Simulations; Water
Article - Conference proceedings
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