Processing of multi layered polymers structures can induced residual stress or initiate damages that endanger the use of the final part. This study focus on such a structure (thin multilayer multimaterial plaques) that will have to experience complex thermomechanical loading during use. Main scientific objectives are :
- Analysing how and when residual stresses are built up during the processing, which involves extrusion, calandring and aneealing,
- Estimating the level of residual stress in the final structure,
- Characterising the abbility in forming cracks.
Three main aspects will be of interest :
- Polymers processing,
- Thermal dilation and stabilities of materials,
- Visco elasticity.
In parallel mechanical behaviour of materials will be address with a particular attention to visco elasticity and crack propagation.
send your CV and covering letter by email to Noëlle BILLON:
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Presentation of the establishment and the laboratory of reception :
CEMEF, which stands for Centre de Mise en Forme des Matériaux, or Centre for Material Forming, is a leading research centre in the field of material forming. It was created in 1974 and is located in the Sophia Antipolis science park, near Nice in the south of France. It is a research laboratory of Mines ParisTech and has been associated with CNRS, the French National Science Foundation since 1979.
CEMEF develops global approaches in material forming (polymers, bio-polymers, elastomers, metals, alloys...), combining physics, physical chemistry, mechanics, thermics, modelling, numerical simulation (finite element methods, meshing, fluid-structure coupling...).
The scientific developments are applied to forming processes: injection molding, extrusion, forging, machining, rolling, welding... It has about 160 people, including 70 PhD students.