A Comprehensive Numerical Investigation on the Mechanical Performance of Hybrid Composite Tidal Current Turbine under Accidental Impact

Abstract

The composite tidal turbine nozzle can be exposed to impact loads during maintenance or installation operations, which may result in invisible damage. Therefore, it is very important to analyse the induced damage in order to conceive hybrid composite nozzles with better resistance to damage. The low-velocity impact behaviour (LVI) of a carbon/glass hybrid composite nozzle has been investigated based on this motivation. The configurations of stacking sequences were constituted of glass and carbon fibers. The results acquired were compared between five various laminated. Indeed, the impact was studied in the leading edge region of the nozzle. The damaged laminates were inspected by the finite element method (FEM) based on Hashin failure criterion using the ABAQUS software. The energy conservation of the nozzle was verified to validate the numerical model. Futhermore, the effect of accidental impact on dynamic response and the damage induced on a hybrid composite nozzle have been investigated. According to results, the formation of damage like matrix cracking on the external/internal surfaces and radial cracking may occur. In addition, the hybrid nozzle with CCC (carbon/carbon/carbon), and CGG (carbon/glass/glass) stacking has greater impact resistance compared to other configurations.

Assessment of Destructive Impact of Different Factors on Concrete Structures Durability

“…A similar reinforcing structure was used by the authors of [ 36 , 37 ], who carried out numerical calculations and then implemented tidal turbine reinforcement. In these cases, the execution of works under the sea was an additional difficulty.…”

Performance of wildlife fence systems under animal impact load

“…The impact problem extends beyond the specific case of grid structural systems affected by rockfall and animals. It encompasses a broad range of scenarios, including heavy objects falling on beam and plate structures [ 5 , 6 ] and the impact of storms on marine structures, such as tidal current turbines [ [7] , [8] , [9] , [10] ]. It is important to note that each case involves distinct properties of impactors and target structures, necessitating comprehensive studies tailored to the specific circumstances of each scenario.…”

Modal analysis of composite nozzle for an optimal design of a tidal current turbine

“…Two research works (Laaouidi et al, 2021, Laaouidi et al, 2020 have been conducted to analyze the response of a hybrid composite nozzle under impact during a maintenance operation. This can lead to complex damage modes in the nozzle, capable of harming their structural integrity.…”