Finite element and automatic remeshing methods for the simulation of complex blow molded polymer components

Michel Bellet (1) , Andrès Rodriguez-Villa (2) , Jean-François Agassant (1)

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

This paper presents a three dimensional finite element model of the extrusion blow molding process. The code Tform3 has the following characteristics: membrane formulation, linear triangle elements, updated Lagrangian implicit formulation, viscoelastic differential constitutive equations. The paper presents a brief recall of the formulation and then addresses three key issues of the simulation: automatic identification of constitutive equation parameters, automatic remeshing, coupling between gas pressure and inflation. An example of application to the extrusion blow molding of a bottle is presented.

Mots clés: finite element : remeshing; simulation; polymer components

Domaines: Matériaux

Michel Bellet, Andrès Rodriguez-Villa, Jean-François Agassant. Finite element and automatic remeshing methods for the simulation of complex blow molded polymer components. 6th International Conference on Numerical Methods in Industrial Forming Processes (NUMIFORM 98), Jun 1998, Enschede, Netherlands. pp.Pages 489-494. ⟨hal-00573684⟩