| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Laure, Patrice
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (23/23 displayed)
- 20233D real time and in situ observation of the fibre orientation during the plane strain flow of concentrated fibre suspensionscitations
- 2022Cellularization modeling of a rubber compound in injection molding conditions
- 2022Cellularization modeling of a rubber compound in injection molding conditions
- 2022Foamability of linear and branched polypropylenes by physical extrusion foaming - Input of the thermomechanical analysis of pressure drop in the die
- 2022Extrusion foaming of linear and branched polypropylenes - Input of the thermomechanical analysis of pressure drop in the die
- 2022Analysis and Modelling of Extrusion Foaming Behaviour of Polyolefins using Isobutane and CO2
- 2021Analysis and Modelling of Extrusion Foaming Behaviour of Low-Density Polyethylene using Isobutane and CO2
- 2021Short fiber composite reinforcementscitations
- 2021Microscale modelling of the cellularization of a rubber compound in injection moulding conditions
- 2019Fibre kinematics in dilute non-Newtonian fibre suspensions during confined and lubricated squeeze flow: direct numerical simulation and analytical modellingcitations
- 2016On the Numerical Modeling of Fiber-reinforced Composites:Towards Industrial Applications
- 2016On the Numerical Modeling of Fiber-reinforced Composites:Towards Industrial Applications
- 2016Multiphysics for simulation of forming processes
- 20163D real-time and in situ characterisation of fibre kinematics in dilute non-Newtonian fibre suspensions during confined and lubricated compression flowcitations
- 2015Direct Numerical Simulation of a rheology model for fibre-reinforced composites
- 2015Direct Numerical Simulation of a rheology model for fibre-reinforced composites
- 2015Numerical Modelling of Molding Compression Of Fibre-Reinforced Composites for Industrial applications
- 2015Numerical Modelling of Molding Compression Of Fibre-Reinforced Composites for Industrial applications
- 2015Numerical Implementation of a Rheology Model for Fiber-Reinforced Composite and Viscous Layer Approach for Friction Studycitations
- 2012A new three-dimensional mixed finite element for direct numerical simulation of compressible viscoelastic flows with moving free surfacescitations
- 2007Injection molding simulation : Taking into account the process history to predict the anisotropy in the end-use propertiescitations
- 2005Simulations numériques d'écoulements de fluides complexes à l'échelle microscopique : un nouvel outil de rhéologie
- 2004Direct Calculation of the motion of rigid fibres in a viscous fluidcitations
Places of action
| Organizations | Location | People |
|---|
conferencepaper
Microscale modelling of the cellularization of a rubber compound in injection moulding conditions
Abstract
The objective of this work was to develop a microscale model allowing to describe the growth of gas bubbles during the foaming of a rubber matrix in injection moulding conditions. The description of the foaming at the level of the bubble is based on a model first proposed by Amon and Denson [1]. The model describes the growth of numerous cells in closed proximity of one another. Each one is formed by a bubble enveloped by a spherical fluid shell that contains a finite amount of dissolved gas homogenously distributed throughout its mass. The gas concentration gradient between the bubble/polymer boundary and the outside of the polymer shell cell will induce a gas diffusion towards the bubble (Fick law) and subsequently a gas pressure increase, which will induce the growth of the bubble. The bubble grows up to the moment when no more gas is available. By applying the conservation of momentum, mass and energy principles to this process, one can obtain a set of equations describing the evolution of the bubble radius, the pressure, and the concentration gradient inside the polymer. In addition to initial and boundary conditions (initial gas concentration, bubble density, temperature, pressure in the surrounding medium), different physical parameters need to be determined or estimated: the diffusivity, the Henry’s constant, the surface tension between the fluid and the gas, the matrix viscosity, density and heat capacity.As the rubber is vulcanizing during the molding step, the viscosity increase due to the vulcanization was implemented in the model. A chemo-rheological model developed by Castro and Macosko [2] was used to introduce a state of cure dependency into the viscosity term. The state of cure evolution was predicted by means of a Kamal-Sourour autocatalytic kinetic model [3]. In addition, one considers the coupling with kinetic reaction generating the gas from a chemical foaming agent (OBSH).The bubble growth kinetics will be first described and discussed in view of the gas concentration evolution and the ...