Teilprojekt P8 – Fracture in Polymer Composites: Meso to Macro
Teilprojekt P8 - Fracture in Polymer Composites: Meso to Macro
(Drittmittelfinanzierte Gruppenförderung – Teilprojekt)
Titel des Gesamtprojektes: Skalenübergreifende Bruchvorgänge: Integration von Mechanik, Materialwissenschaften, Mathematik, Chemie und Physik (FRASCAL)
Projektleitung: ,
Projektbeteiligte: ,
Projektstart: 2. Januar 2019
Projektende: 30. Juni 2023
Akronym: GRK2423 - P8
Mittelgeber: DFG / Graduiertenkolleg (GRK)
URL: https://www.frascal.research.fau.eu/home/research/p-8-fracture-in-polymer-composites-meso-to-macro/
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.
Publikationen
- , :
Size Effects in Computational Homogenization of Polymer Nano-Composites
In: Proceedings in Applied Mathematics & Mechanics 2021
DOI: 10.1002/pamm.202000047
URL: https://onlinelibrary.wiley.com/doi/abs/10.1002/pamm.202000047 - , , :
A comparative assessment of different adaptive spatial refinement strategies in phase-field fracture models for brittle fracture
In: Forces in Mechanics 10 (2023), S. 100157
ISSN: 2666-3597
DOI: 10.1016/j.finmec.2022.100157
URL: https://www.sciencedirect.com/science/article/pii/S2666359722000853