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Research project title

ADVANCED CHARACTERIZATION OF ABRADABLE COATING WEAR PHENOMENA DURING BLADE-TIP/CASING CONTACTS IN AIRCRAFT ENGINES

Education level

Doctorate

Director/co-director

Director: Alain Batailly

Co-director(s): Sylvain Philippon (Université de Lorraine, France)

End of display

August 31, 2024

Areas of expertise

Mechanical engineering

Aerospace, aeronautical and automotive engineering

Modelling, simulation and finite element methods

Materials science and technology

Polymers and coatings

Primary sphere of excellence in research


Sustainable Transport and Infrastructures

Secondary sphere(s) of excellence in research

Innovative Materials

Unit(s) and department(s)

Department of Mechanical Engineering

Laboratory for Acoustics and Vibration Analysis (LAVA)

Université de Lorraine

Detailed description

In the framework of an international France-Canada project, LEM3 and LAVA plan to develop numerical models that take into account   the evolution of the microstructure of coatings (AlSi-PE abradable material) used in low-pressure aircraft engine compressors. The   project aim is to understand the influence on the material damage, and in particular the densification microstructure on the severity of   the loading on the blade tip. To this end, characterization tests for large ranges of strain rates and temperatures will be carried out at   LEM3, Université de Lorraine in France on materials whose porosity will be modified by a controlled compressive load. Based on these   results, a constitutive law will be proposed and implemented in numerical models developed at LAVA, Polytechnique Montréal in   Canada. The evolution of the blade dynamic response will be investigated to propose optimization criteria for the blade. The   experimental work will extend to other types of solicitation (shear and tensile) for the same abradable specimen in order to better   represent the real contact conditions between the blade and the turbojet casing.

Financing possibility

Funding available for the duration of the project.

Alain Batailly

Full Professor

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