PROPOSITION DE SUJET DE THESE Intitulé : Study and

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PROPOSITION DE SUJET DE THESE
Intitulé : Study and characterization of contact, friction, heating and
abrasion phenomena for metallic and organic matrix composite materials
Référence : MAS-DADS-2017-002
(à rappeler dans toute correspondance)
Laboratoire d’accueil à l’ONERA :
Branche :Matériaux et Structures
Lieu (centre ONERA) :
Centre de Lille
Département : Aeroelasticity and Structural Dynamics Department (DADS)
Unité : Conception et Résistance Dynamique
Tél. 03 20 49 69 36
Responsable ONERA : Eric Deletombe
Email : [email protected]
(Co-Directeur)
Directeur de thèse extérieur envisagé:
Nom : Pr Yannick Desplanques
Adresse :Ecole Centrale de Lille, Cité Scientifique, 59651 Villeneuve-d'Ascq
Tél.
Email : [email protected]
Subject: Aviation is one of the safest public transport means today. To reach such a performance,
aircraft safety mainly relies on experience feedback and a set of constantly evolving rules which
concern the flying products and operations. In the course of events which punctuate the aeronautics
history, aircraft certification rules progressively improved. This is especially the case in the field of
crash and survivability, which is identified as a specific topic for instance in the European CS 25 (large
civil aircraft) document. An advisory group was recently set up in the USA by FAA to address the
question of identifying beneficial research activities in the field of civil aircraft crashworthiness. Among
the objectives of this advisory group, one could find the evaluation of the interest and feasibility of
future regulation evolutions and the consideration of more representative crash scenarii, in particular
at the full scale level. In response to this renewed American interest for crash safety, some French
aircraft manufacturers proposed in 2013 to the French CORAC organization (Council for Civil Aviation
Research) to introduce a transverse “Crash and Survivability” theme in its roadmap. Considering this
C&S roadmap, several research subjects of transversal interest for the different French aircraft and
rotorcraft manufacturers have been identified to increase their capability to better understand, analyze
and improve aircraft resistance in crash situations.
For this purpose, a four years PHYSAFE 2015-04 research project funded by the French DGAC
started in August 2015. Part of the research aims at experimentally studying and characterizing
various phenomena which may have a noticeable influence on aircraft passengers’ safety in case of
crash. Among these experimental studies, the development of test means and facilities to
characterize the dynamic abrasion behavior of aircraft primary structure materials once in contact with
the ground was selected as being of common interest for aircraft and rotorcraft airframes.
The proposed PhD work will then focus on the study and characterization of contact, friction, heating
and abrasion phenomena for metallic and organic matrix composite materials (reference materials :
Aluminum, T700/M21) in aircraft crash situations. It will consist in establishing principles and
preliminary specifications of an experimental protocol (test bench, specimens, instrumentation, etc)
dedicated to the study of dynamic abrasion of materials in representative conditions, followed by a
feasibility study (development and set-up of a prototype experimental bench), and a final assessment
of the research results based on a first comparison of abrasion tests performed on metallic and
composite reference materials.
Collaborations extérieures : Ecole Centrale de Lille
PROFIL DU CANDIDAT
Formation : Ecole d'ingénieur / Master 2 Recherche
Spécificités souhaitées : Mécanique des milieux
dynamique des matériaux, expérimentation.
continus,
tribologie,
comportement
GEN-F-160-6(GEN-SCI-029)