Teilprojekt P8 - Fracture in Polymer Composites: Meso to Macro (GRK2423 - P8)
Third Party Funds Group - Sub project
Acronym: GRK2423 - P8
Start date : 02.01.2019
End date : 30.06.2023
Extension date: 31.12.2027
Website: https://www.frascal.research.fau.eu/home/research/p-8-fracture-in-polymer-composites-meso-to-macro/
Overall project details
Overall project
Fracture across Scales: Integrating Mechanics, Materials Science, Mathematics, Chemistry, and Physics (FRASCAL) (GRK 2423 FRASCAL)
Jan. 1, 2019 - Dec. 31, 2027
Overall project speaker:
Project details
Short description
Short description
The mechanical properties and the fracture toughness of polymers can be increased by adding silica nanoparticles. This increase is mainly caused by the development of localized shear bands, initiated by the stress concentrations due to the silica particles. Other mechanisms responsible for the observed toughening are debonding of the particles and void growth in the matrix material. The particular mechanisms depend strongly on the structure and chemistry of the polymers and will be analysed for two classes of polymer-silica composites, with highly crosslinked thermosets or with biodegradable nestled fibres (cellulose, aramid) as matrix materials.
The aim of the project is to study the influence of different mesoscopic parameters, as particle volume fraction, on the macroscopic fracture properties of nanoparticle reinforced polymers.
Scientific Abstract
The mechanical properties and the fracture toughness of polymers can be increased by adding silica nanoparticles. This increase is mainly caused by the development of localized shear bands, initiated by the stress concentrations due to the silica particles. Other mechanisms responsible for the observed toughening are debonding of the particles and void growth in the matrix material. The particular mechanisms depend strongly on the structure and chemistry of the polymers and will be analysed for two classes of polymer-silica composites, with highly crosslinked thermosets or with biodegradable nestled fibres (cellulose, aramid) as matrix materials.
The aim of the project is to study the influence of different mesoscopic parameters, as particle volume fraction, on the macroscopic fracture properties of nanoparticle reinforced polymers.
Involved:
Julia Mergheim
Project Leader
Dirk Zahn
Project Leader
Paras Kumar
Project Member
Maurice Rohracker
Project Member
Contributing FAU Organisations:
Professur für Theoretische Chemie
Zentralinstitut für Scientific Computing (ZISC)
Graduiertenkolleg 2423 Skalenübergreifende Bruchvorgänge: Integration von Mechanik, Materialwissenschaften, Mathematik, Chemie und Physik
Lehrstuhl für Technische Mechanik (LTM)
