Characterisation of the dilatational stress relaxation for viscoelastic Polyurethane materials

Angélique Consil (1) , Noëlle Billon (2) , Lucien Laiarinandrasana (1)

1 CDM - Centre des Matériaux
2 CEMEF - Centre de Mise en Forme des Matériaux

This contribution deals with three grades of polyurethane (PU) devoted to ensure sealing of filter cartridge endplate. PU is an amorphous polymer whose microstructure depends on the supplier processing. During service, the endplates are submitted to complex thermo-mechanical loading consisting of an applied pressure with a continuous increase of the temperature. The inner diametrical dilatation is the key parameter that has to be controlled. The main loading deals then with transient thermal expansion as well as hydrostatic pressure.

Mots clés: stress; viscoelasticity; Polyurethane

Domaines: Matériaux

Angélique Consil, Noëlle Billon, Lucien Laiarinandrasana. Characterisation of the dilatational stress relaxation for viscoelastic Polyurethane materials. 14th International Conference on Experimental Mechanics (ICEM 14), Jul 2010, Poitiers, France. Article Number 03004 - 2 p., ⟨10.1051/epjconf/20100603004⟩. ⟨hal-00579510⟩