Bird strike analysis on nanocomposite materials for aerospace applications
2022-26-1145
05/26/2022
- Event
- Content
- Over the years, bird strike has become a serious threat as it is inevitable and can be catastrophic. Several accidents occur due to the bird collision with wing leading edges, causing serious structural damage that may be permanent. Therefore, the failure induced by birds on the leading edge has persuaded much research interest. To heighten the impact resistance during bird strike with the leading edge of the wing, nanocomposite materials are proposed as it has improved characteristics like high surface-to-volume ratio, enhanced mechanical properties like high ductility, fracture toughness with no decrease of strength in structure. In order to achieve material constants of the nanocomposites, the finite-element method (FEM) and representative volume element (RVE) which is a micromechanical analysis approach will be considered. A comparative study will be done on different volume fractions of nanofillers impregnated with the composite material to find the optimum material properties like Young’s modulus, Shear modulus, Poisson’s ratio that has kinetic energy absorbing capability. These near-to-ideal material properties will then be used to perform the dynamic analysis to understand the impact-damage modes like fiber/matrix or compression/tension. The high-velocity impact on nanocomposite laminates will be studied using numerical methods. A parametric study of different sizes, shapes, and formations of nanofillers will be done to find the strength properties and fracture energy parameters. Furthermore, the modal frequency will be executed to understand the mass and stiffness characteristics of the dynamic structure. In conclusion, the strength and dynamic properties conjointly govern the impact damage resistance of nanocomposites under bird strike.
- Citation
- Neigapula, K., Anand, S., Devi, M., Tiwari, A. et al., "Bird strike analysis on nanocomposite materials for aerospace applications," SAE Technical Paper 2022-26-1145, 2022, .