Sahputra, Iwan Halim and Alexiadis, Alessio and Adams, Michael J. (2020) A Coarse Grained Model for Viscoelastic Solids in Discrete Multiphysics Simulations. ChemEngineering, 4 (2). NA. ISSN 2305-7084
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Abstract
Viscoelastic bonds intended for Discrete Multiphysics (DMP) models are developed to allow the study of viscoelastic particles with arbitrary shape and mechanical inhomogeneity that are relevant to the pharmaceutical sector and that have not been addressed by the Discrete Element Method (DEM). The model is applied to encapsulate particles with a soft outer shell due, for example, to the partial ingress of moisture. This was validated by the simulation of spherical homogeneous linear elastic and viscoelastic particles. The method is based on forming a particle from an assembly of beads connected by springs or springs and dashpots that allow the sub-surface stress fields to be computed, and hence an accurate description of the gross deformation. It is computationally more expensive than DEM, but could be used to define more effective interaction law.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Kelvin-Voigt viscoelastic bonds; coarse grained model; particle method; viscoelastic particles; inhomogeneous particles |
| Subjects: | T Technology > TJ Mechanical engineering and machinery T Technology > TP Chemical technology |
| Divisions: | Faculty of Industrial Technology > Industrial Engineering Department |
| Depositing User: | Admin |
| Date Deposited: | 04 May 2020 18:11 |
| Last Modified: | 17 Feb 2023 08:13 |
| URI: | https://repository.petra.ac.id/id/eprint/18773 |
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