Structural
mechanics

The Structural Mechanics department

In the current context, material strength, user safety, production cost and environmental impact are all major issues in the development of a new product.

Supporting our partners

Product lifecycle

All companies offering products are committed to increasingly high quality standards. They must be resistant, durable and safe for the end user.

 

We support our partner companies in the development of their products through research and expertise. We specialise in verifying the strength and mechanical resistance of structures by means of simulations and other tests. We also offer to make them smart by adding sensors. In addition, our teams can assist you in carrying out product lifecycle analyses using several software packages.

 

 

 

Thanks to numerical simulation, we can perform a multitude of tests on different materials and structures. Experimental tests allow us to characterise the properties and mechanical strength of materials.

 

To remain competitive, manufacturers must also optimise production costs. The Structural Mechanics department provides answers to material and topological optimisation problems. Monitoring the health of structures is also part of our expertise. This is a crucial issue to avoid unexpected failures throughout the life of the product.

Areas of expertise

Our team will advise and support you in the following areas of expertise:

  • Design and eco-design
  • Material and topological optimisation
  • Prototyping and 3D printing
  • Numerical modelling of multi-physical systems
  • Numerical simulation of the mechanical behaviour of materials and structures
  • Development of calculation codes for the analysis of materials and structures
  • Design of experimental systems and model validation
  • Development of laser machining processes
  • Multi-scale characterisation: mechanical, spectral and calorimetric of materials
  • Instrumentation for the prediction and detection of structural failure using external or integrated sensors
  • Product life cycle analysis
  • Carbon footprint

Vocational training

You can also train yourself and your teams in various skills through customised professional training:

  • Mechanical design
  • Prototyping and 3D printing
  • Strength of materials
  • Continuum mechanics
  • Mechanical behaviour of materials
  • Vibration mechanics
  • Fluid mechanics
  • Heat transfer
  • Numerical methods for engineers: finite element method
  • Physical chemistry of materials
  • Heat treatment
  • Spectroscopy
  • Laser machining
  • Tribology, friction and wear studies
  • Measurement uncertainties
  • Radiative transfer (radiosity method, Planck fraction method, Monte Carlo method)
  • Product lifecycle analysis

Research subjects

Do you have an innovative project aimed at designing and manufacturing a product?

Our research teams address scientific and technological challenges in the following areas:

  • digital and experimental optimisation of materials and structures
  • durability control and structural health monitoring,
  • optimisation of environmental impacts.

They apply to the industrial, building, aerospace, automotive and health sectors.

Services

  • Design and eco-design of mechanical systems
  • Material and topological optimisation for mass and cost reduction
  • Retro design
  • Design of diffractive optical elements (modification of the refractive index)
  • Design of phase masks (inscription of Bragg gratings inside optical fibres)
  • Stress analysis of parts
  • Dimensioning of mechanical systems using the finite element method
  • Vibration analysis of embedded systems, balancing of rotating machines
  • Studies and modelling of thermal transfers
  • Thermal simulation of laser-matter interaction
  • Studies and modelling in fluid mechanics
  • Metallographic study
  • Study of the effects of heat treatment on materials
  • Study of the thermal properties of materials
  • Study of surface tensions
  • Viscometry study
  • Study of the optical properties of materials
  • X-ray diffractometry
  • Thin film deposition
  • Modelling and dimensioning of energy systems
  • Characterisation of the mechanical properties of materials (behaviour law, modulus of elasticity, yield point, breaking point)
  • Characterisation of the thermal properties of materials (conductivity, heat capacity, latent heat, contact resistance and conductance)
  • Instrumentation and embedding of sensors to monitor mechanical stresses in parts
  • Ultrasonic characterisation of metallic materials (defects, welding, etc.)
  • Product lifecycle analysis

Projects

Whatever your project, our team will assist you in its experimentation and development.

 

  • Developing and instrumenting an experimental rocket
  • Developing a test bench to measure stresses
  • Designing and building a 3D printing machine by selective laser sintering
  • Automating the black body furnace bench device for the calibration of optical pyrometers
  • Dimensioning, designing and building an additive manufacturing bench with a solar concentrator
  • Simulating the mechanical behaviour of a greenhouse under extreme climatic conditions
  • 3D modelling the Muesberg site and simulating energy losses for several thermal renovation scenarios

 

Equipment

MACHINES

  • Shimadzu tensile and compression testing machine, 5 kN and 100 kN
  • Mitutoyo micro Vickers hardness testing machine, 0.2 to 20 N
  • Buehler macro Vickers hardness testing machine, 1 to 50 N
  • Taber abrasion tester
  • Netzsch differential scanning calorimeter -40 to 600°C
  • Netzsch dilatometer operating up to 1,600°C
  • Agilent UV-Vis spectrometer
  • PerkinElmer FT-IR spectrometer with ATR measurement and by transmission
  • Bruker X-ray diffractometer
  • Buehler metallography equipment, including a manual cutter, ATM precision cutter, ATM mounting system and Escil polisher
  • Olympus transmission/reflection microscopes, polarising filtre, magnification x 5 up to x 100 with operating software
  • 3 Nabertherm furnaces with a heating capacity of up to 1,280°C
  • Nabertherm oil and water quench baths with adjustable temperature
  • Ubbelohde & Brookfield-type viscometres
  • Krüss tensiometer for measuring surface tension according to the Wilhelmy plate method and Du Noüy ring method
  • Krüss tensiometer for the measurement of contact angles and surface tension by the hanging drop method and forward/backward contact angle
  • Instron Pendulum Impact Tester with 1.5 J, 5 J and 25 J hammers for Charpy test EN ISO 148 and 5J hammer for Izod test EN ISO 148
  • VTC-50 spin coater, variable speed up to 8000 rpm, accepting samples up to 102 mm
  • Centrifugal blower fan, 9,000 m3/h
  • Ultimaker 3 3D printer (215 x 215 x 200 mm, 20 µm Z-axis resolution, dual extrusion)
    60 W CO2 laser cutter (engraving on all materials, wood and PMMA cutting)
  • SiteScan D 50 portable ultrasonic device with 45°, 60° and 70° translators

 

SOFTWARE

  • SolidWorks
  • Autodesk Inventor Suite,
  • Nastran, Revit
  • RDM7
  • Matlab, Scilab
  • Archiwizard

As a Doctor of Mechanical Engineering, I am specialised in the designing, dimensioning and optimisation of mechanical systems. At ECAM Strasbourg-Europe, my role is to help companies develop their products using simulation and prototyping tools. We also propose to make them smart by integrating sensors that allow us, via data collection, to monitor the health of products and improve them.

Marcelin Bilasse - Head of the Structural Mechanics department