Teilprojekt P2 - Atomistics of Crack-Heterogeneity Interactions

Third Party Funds Group - Sub project

Overall project details

Overall project: Fracture across Scales: Integrating Mechanics, Materials Science, Mathematics, Chemistry, and Physics (FRASCAL)

Overall project speaker:
Prof. Dr.-Ing. Paul Steinmann (Lehrstuhl für Technische Mechanik)

Project Details

Project leader:
Prof. Dr.-Ing. Erik Bitzek
Prof. Dr.-Ing. Sigrid Leyendecker

Contributing FAU Organisations:
Chair of Applied Dynamics
Professur für Werkstoffwissenschaften (Simulation und Werkstoffeigenschaften)
Zentralinstitut für Scientific Computing (ZISC)

Funding source: DFG / Graduiertenkolleg (GRK)
Acronym: GRK2423 - P2
Start date: 02/01/2019
End date: 30/06/2023

Abstract (technical / expert description):

The fracture of a brittle solid is crucially determined by material
heterogeneities directly at the crack front where the stress field
diverges and the usual homogenization strategies are no longer
applicable. While this problem has attracted significant interest,
currently no consistent theory that relates local changes in properties
to the local fracture behavior and macroscopic failure criteria exists.
In contrast to the long-range elastic interactions, the direct
interaction of the crack front with heterogeneities cannot be described
by continuum methods but requires an atomistic treatment.

The aim of this project is to study the influence of various types of
heterogeneities on the energy dissipation mechanisms in different
classes of materials.

Last updated on 2019-15-05 at 13:34