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Last update, November 2002,
the 28th
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MEM
Department
Mechanical and Materials Engineering Department
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The activities of the Mechanical and Materials
Engineering department belong to the field of mechanics of materials
and structures. The main objective of MEM is the development
of theoretical, numerical and experimental tools for the design
of composite materials structures.
This aim implies three actions :
-
the development of specific experimental techniques, well
founded from a mechanical point of view, to characterise the
behaviour of materials and structures under complex loading,
either static or dynamic, accounting in particular for the
effects of temperature and humidity,
-
the development of optical techniques for strain measurements,
in order to characterise and yield an optimal exploitation
of the mechanical response of structures. These techniques
can be of the field type or locally distributed,
the creation and
use of assisting tools, either by finite elements or dedicated
softwares, to analyse and design structures, for the pre-dimensioning
of structural elements in composite materials.
TOPICS AND RESEARCH SUBJECTS
The research subjects
belong to four large themes :
characterisation and modelling
of the mechanical behaviour of organic and cement matrix composite
materials,
durability analysis of organic
or cement matrix composite materials,
design of experiments and
specific mechanical identification methods, including the development
of techniques for distributed or field measurements,
analysis and design of anisotropic
structures, monolithic or sandwiches.
SUBJECTS IN PROGRESS
Study of the mechanisms of deformation and fracture in reinforced
concrete beams in the vicinity of a composite reinforcement.
Methodology for the design and optimisation
of composite structures taking into account the manufacturing
constraints.
Scale effects and interaction between buckling
modes in sandwich structures. Internal stress calculations in
thick cylindrical composite tubes.
Thermomechanical modelling of the liquid
molding process for NCF reinforcements.
Experimental characterisation of flow and
reticulation phenomena in polymers using optical fibres.
Application to composite structures of optical
techniques for distributed measures.
TEACHING
First year :
Tutorials in Mechanics of continuous media (12h)
Personal Activity in Experimental Physics
(APPEX - 21h)
Second year
Finite element and structures axis
•
leading the specialisation "structures" structural mechanics
(21h) • finite element tutorials (12h)
• introduction to CAD (12h)
• supervision of FE projects and CAD projects
(40h)
Materials axis : mechanics of materials
- strength of materials (15h)
- Process
of materials axis - leading the "polymer-composites" module
(15h)
- supervision of projects (18h)
Third year
PhD (M.Sc degree) in Mechanics and
Materials Engineering, leading the optional courses Scale change
methods - homogenisation techniques (20h) and Polymer - Composites
(20h) for the DEA
Staff
DOMAINS OF EXPERTISE
Materials
polymers
wood-based materials
polymer matrix composites (thermosettings,
thermoplastics) reinforced by glass, carbon,of organic fibres
Optical metrology
moiré, grid, deflectometry
photoelasticimetry
fringe network analysis software
implementation of optical fibre sensors
Mechanical characterisation of materials
and structures
mechanical tests and strain gage extensometry
conditioning and ageing in temperature
and humidity
identification of anisotropic behaviour
models (hybrid methods)
Finite element computations and structure
design
CAD (ProEngineer, ANSYS, ABAQUS)
finite element computations for the analysis
and the design of joints and structures (ANSYS, ABAQUS and
in-house softwares)
MAIN FACILITIES
mechanical testing facility platform 3*2
m², equipped for statical and dynamical tests of structures
three testing machines, including two
dynamic servo-hydraulic MTS of ±10 and ±2 tons, and a ±2 tons
Adamel screw machine
various in-house testing machines, particularly
two torsion and a weight-drop impact machine
three climatic chambers controlled in temperature and humidity:
two chambers have 1 m3 in volume and the third
one is 0,1 m3 in volume and reaches [-70 °C, +250
°C] and can be placed on the ±10 tons MTS machine
an acoustic emission chain (PAC 3000 system)
various optical facilities, including
a Melles-Griot 2,5 x 1,5 m² table
vibration anlysers (particularly a bi-channel
dynamical analyser Bruel & Kjaer 2035)
large computations facilities (workstation
SUN SS712, 1 server SS1000, 1 server E 3000, 2 servers E450/4proc,
Raid 5 level storage array
finite element and CAD softwares, especially
: ANSYS 5.7, ABAQUS 6.2.1 and Pro/Eng v.2000i.
Partnerships
Industrials
Aérospatiale
Saint-Gobain
Angénieux
Compin
Hexcel
Ifremer
Alstom
Renault
SNCF
Universities and Schools
institut français
de mécanique avancée (IFMA, F)
institut supérieur
de l'automobile et des transports (ISAT, F)
conservatoire national
des Arts et Métiers (CNAM, Paris)
university Claude
Bernard Lyon I (F)
école nationale supérieure
des Arts et Métiers (Paris et Châlon en Champagne)
university of Kaiserslautern
(A)
free university of
Bruxelles (VUB, B)
university of Naples
(I)
university of Porto
(P)
polytechnic university
of Varsovie (PL)
university of Bath
(UK)
university of Bristol
(UK)
university Heriot-Watt
of Edinburgh (UK)
university of Loughborough
(UK)
university of Idaho
(USA)
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