Energy absorption characteristics in hybrid composite materials for marine applications under impact loading: Case of tidal current turbine

Abstract

Summary The tidal current turbine is the most efficient way to extract energy from the sea. This system can be prone to critical loads such as impact accidental in the installation and maintenance phase. Indeed, several complex modes of damage susceptible to harming the stability of the structure are studied to conceive hybrid composite nozzles with better resistance to damage. For this reason, two scenarios of low‐velocity impact of a hybrid composite nozzle (glass/carbon) were investigated. In both cases, the impact was realized in the region of the trailing edge of the nozzle, and the results obtained were compared between three different laminated. On the other hand, damage modeling was formulated using the finite element method based on the Hashin criteria. Energy conservation of the nozzle was verified to validate the numerical model. Also, the effects of the impact velocity and the panel's flexibility on the initiation and propagation of damage have been studied. Depending on the results, the stacking sequence significantly influences the formation of damage. However, the results show that the hybrid nozzle with CGG (carbon/glass/glass) stacking has a higher impact resistance compared to other laminates.

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.…”

A progressive damage model for pressurized filament-wound hybrid composite pipe under low-velocity impact

“…The effect of low-velocity impact on hybrid composite pipes structures is always stayed not perfectly understood and especially its numerical simulation is extremely complicated. Energy absorption characteristics in composites and hybrid composite materials used in marine energy under impact loading was investigated in [45][46][47][48]. Shi et al [49] proposed a damage evolution model for predicting different scenarios in a circular plate subjected to low-velocity impact, the experimental data confronted with the numerical model, the numerical results show the best agreement.…”

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.…”