Teilprojekt P12 – Postdoctoral Project: Quantum-to-Continuum Model of Thermoset Fracture

Teilprojekt P12 - Postdoctoral Project: Quantum-to-Continuum Model of Thermoset Fracture

(Third Party Funds Group – Sub project)

Overall project: Skalenübergreifende Bruchvorgänge: Integration von Mechanik, Materialwissenschaften, Mathematik, Chemie und Physik (FRASCAL)
Project leader: , ,
Project members:
Start date: 2. January 2019
End date: 30. June 2023
Acronym: GRK2423 - P12
Funding source: DFG / Graduiertenkolleg (GRK)
URL: https://www.frascal.research.fau.eu/home/research/p-12-postdoctoral-project-quantum-to-continuum-model-of-thermoset-fracture/


Fracture is an inherently multiscale process in which processes at all
length- and timescales can contribute to the dissipation of energy and
thus determine the fracture toughness. While the individual processes
can be studied by specifically adapted simulation methods, the interplay
between these processes can only be studied by using concurrent
multiscale modelling methods. While such methods already exist for
inorganic materials as metals or ceramics, no similar methods
have been established for polymers yet.

The ultimate goal of this postdoc project is to develop a concurrent
multiscale modelling approach to study the interplay and coupling of
process on different length scales (e.g. breaking of covalent bonds,
chain relaxation processes, fibril formation and crazing at
heterogeneities,…) during the fracture of an exemplary thermoset and its
dependence on the (local) degree of cross-linking. In doing so, this
project integrates results as well as the expertise developed in the
other subprojects and complements their information-passing approach.