STRESS AND ENERGY RELEASE RATE INFLUENCE ON ICE SHEDDING WITH RESONANT ELECTRO-MECHANICAL DE-ICING SYSTEMS
| Autor: | Gastaldo, Giulia, Palanque, Valerian, Budinger, Marc, Pommier-Budinger, Valerie |
|---|---|
| Přispěvatelé: | Institut Supérieur de l'Aéronautique et de l'Espace (ISAE-SUPAERO), ONERA / DMPE, Université de Toulouse [Toulouse], ONERA-PRES Université de Toulouse, Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT) |
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | ICAS 2022-33rd Congress of the International Council of the Aeronautical Sciences ICAS 2022-33rd Congress of the International Council of the Aeronautical Sciences, Sep 2022, Stockholm, Sweden |
| Popis: | International audience; Electromechanical resonant de-icing systems provide a low-power solution to avoid ice accretion on aircraft. These systems rely on actuators, e.g. piezoelectric transducers, which generate high level of stresses within the ice by inducing vibrations in the substrate. This ultimately leads to bulk or adhesive failure of the ice layer and eventually to ice shedding. In order to design an efficient ice protection system it is of utmost importance to evaluate fracture propagation mechanisms. Three key parameters play a role in this phenomenon: the tensile and shear strengths and the critical energy release rate. This paper proposes an evaluation of the influence of stress and energy release rate on cohesive and adhesive fracture propagation for both flexural and extensional modes through numerical analyses. The results are verified by experimental tests, highlighting the relevance of the numerical method proposed in this study. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|