Particulate Composite Materials: Numerical Modeling of a Cross-Linked Polymer Reinforced With Alumina-Based Particles

0398717 - ÚFM 2014 RIV GB eng J - Článek v odborném periodiku
Máša, Bohuslav - Náhlík, Luboš - Hutař, Pavel
Particulate Composite Materials: Numerical Modeling of a Cross-Linked Polymer Reinforced With Alumina-Based Particles.
Mechanics of Composite Materials. Roč. 49, č. 4 (2013), s. 421-428. ISSN 0191-5665. E-ISSN 1573-8922.
[Mechanics of Composite Materials. Riga, 28.05.2013-01.06.2012]
Grant CEP: GA ČR GD106/09/H035; GA MŠMT(CZ) ED1.1.00/02.0068
Institucionální podpora: RVO:68081723
Klíčová slova: particulate composite * cross-linked polymer * FEM * damage model * hyperelasticity
Kód oboru RIV: JL - Únava materiálu a lomová mechanika
Impakt faktor: 0.451, rok: 2013
http://link.springer.com/article/10.1007%2Fs11029-013-9358-y

The contribution deals with an estimation of macroscopic mechanical properties of a particulate composite under uniaxial tensile loading. Composite studied consists of polymer matrix in a rubbery state (polymethylmethacrylate - PMMA) and alumina based particles (Al2O3). Numerical modelling based on the finite element method (FEM) was performed to determine stress-strain behaviour of the particulate composite. Numerical simulations took into account hyperelastic properties of cross-linked polymer matrix, described by the three parameter Mooney-Rivlin material model. Representative volume element (RVE) model was chosen for FE analyses as an approach modelling a microstructure of the composite. Various compositions of particles, their different shape and orientation have been considered in the study. Various directions of loading of RVE have also been investigated. The progressive damage model has been implemented into the numerical models. Mechanical properties obtained from computations, which included damage model, have been compared with experimental data and good agreement has been found. The procedure presented can be used for estimation of mechanical properties of new particulate composites with cross-linked polymer matrix and contributes to the clarification of damage development and failure of studied type of particulate composite.
Trvalý link: http://hdl.handle.net/11104/0226207