The teaching unit is optional

The teaching unit is taught in English.

Outline of teaching unit

3 ECTS / 30 h

 Lectures : 6 courses of 3h

Tutorials : 4 courses of 1h30

Practical works : 1 course of 4h

Team

Coord. Gilles Regnier (gilles.regnier@ensam.eu, ENSAM Paris)

Objectives

Show the distinctive features of polymer processing (viscoelastic behavior, kinetics of state transitions, influence of micro- and nanofillers).

Have an overview of the induced micro- and nanostructure to better understand properties.

Know application field and limits of industrial process simulation codes.

Targets

rganic materials and composites are taking an increasing part in manufactured products. Their processing optimisation needs simulations on specific codes based on several hypothesis. The predictions are highly dependent on these hypothesis and the lectures aim to show what can bring an intensive use of codes like REM3D or Moldflow for injection molding simulation. The present limits linked to the complexity of induced microstructures will be discussed.

Exemples of 4-months Master projects :

Thermoforming simulation of aeronautical PMMA windows (Saint-Gobain 2008).

Debindering simulation of injection molded ceramic parts (Snecma 2007).

Thermoelastic properties of injection molded polymers reinforced by fibers (Legrand 2006, Bosch 2008).

Rheology of polymers reinforced by carbon nanotubes (2007).

Viscoelastic properties of a PE reinforced by nanoclay particles (2007).

• Aeronautics :
• Génie électrique / Automobile :
• Nanotechnologies :

Topics

Rheothining visqueux behavior.

Viscoelasticity in flow.

Induced microstructures.

Kinetic modelling.

• Polymer processing - L 3h
• Rheology in the liquid state - L 3h, T 3h
• Crystallisation - L 1h30, T 1h30
• Microscopic or nanometric fillers (fibers, carbon nanotubes, …) and nanostructuration - L 6h
• Induced thermoelastic behavior - L 1h30, T 1h30
• Injection molding - L 3h
• Injection molding simulation of thermoplastics on MOLDFLOW® code - TP 4h

Marking

Personal work : Analysis of scientific papers / experimental or computing work. Two formatted A4 pages + oral presentation (15 min).

BibliographY

• Agassant J.F. et al., La mise en forme des matières plastiques, Tech & Doc, 1996.
• Etienne S., David L., Introduction à la physique des polymères, Dunod, 2002.
• Macosko C., Rheology: principles, measurement and applications, VCH publishers, 1994.
• Ward I.M., Structure and Properties of oriented polymers, Chapman & Hall, 1997.