Teilprojekt P2 - Atomistics of Crack-Heterogeneity Interactions (GRK2423 - P2)

Third Party Funds Group - Sub project


Acronym: GRK2423 - P2

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-2-atomistics-of-crack-heterogeneity-interactions/


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

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heterogeneities directly at the crack front where the stress field diverges and the usual homogenization strategies are no longer applicable.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.

Scientific Abstract

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heterogeneities directly at the crack front where the stress field diverges and the usual homogenization strategies are no longer applicable.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.

Involved:

Contributing FAU Organisations:

Funding Source