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

Third Party Funds Group - Overall project

Project Details

Project leader:
Prof. Dr.-Ing. Paul Steinmann

Project members:
Prof. Dr. Bernd Meyer
Prof. Dr.-Ing. Erik Bitzek
Prof. Dr. Dirk Zahn
Prof. Dr. Thorsten Pöschel
Prof. Dr. Michael Zaiser
Dr.-Ing. Sebastian Pfaller
Dr. Paolo Moretti
PD Dr. Julia Mergheim
Prof. Dr.-Ing. Sigrid Leyendecker
Prof. Dr.-Ing. Paul Steinmann
Prof. Dr. Michael Stingl
Prof. Dr. Ana-Suncana Smith

Contributing FAU Organisations:
Chair of Applied Dynamics
Lehrstuhl für Multiscale Simulation of Particulate Systems
Lehrstuhl für Technische Mechanik
Lehrstuhl für Werkstoffsimulation
Professur für Computational Chemistry
Professur für Mathematische Optimierung
Professur für Theoretische Chemie
Professur für Theoretische Physik
Professur für Werkstoffwissenschaften (Simulation und Werkstoffeigenschaften)
Zentralinstitut für Scientific Computing (ZISC)

Funding source: DFG / Sonderforschungsbereich / Integriertes Graduiertenkolleg (SFB / GRK)
Acronym: GRK 2423 FRASCAL
Start date: 01/01/2019
End date: 30/06/2023

Abstract (technical / expert description):

The RTG aims to improve understanding of fracture in brittle heterogeneous materials by developing simulation methods able to capture the multiscale nature of failure. With i) its rooting in different scientific disciplines, ii) its focus on the influence of heterogeneities on fracture at different length and time scales as well as iii) its integration of highly specialised approaches into a “holistic” concept, the RTG addresses a truly challenging cross-sectional topic in mechanics of materials. Although various simulation approaches describing fracture exist for particular types of materials and specific time and length scales, an integrated and overarching approach that is able to capture fracture processes in different – and in particular heterogeneous – materials at various length and time resolutions is still lacking. Thus, we propose an RTG consisting of interdisciplinary experts from mechanics, materials science, mathematics, chemistry, and physics that will develop the necessary methodology to investigate the mechanisms underlying brittle fracture and how they are influenced by heterogeneities in various materials. The insights obtained together with the methodological framework will allow tailoring and optimising materials against fracture. The RTG will cover a representative spectrum of brittle materials and their composites, together with granular and porous materials. We will study these at length and time scales relevant to science and engineering, ranging from sub-atomic via atomic and molecular over mesoscale to macroscopic dimensions. Our modelling approaches and simulation tools are based on concepts from quantum mechanics, molecular mechanics, mesoscopic approaches, and continuum mechanics. These will be integrated into an overall framework which will represent an important step towards a virtual laboratory eventually complementing and minimising extensive and expensive experimental testing of materials and components. Within the RTG, young researchers under the supervision of experienced PAs will perform cutting-edge research on challenging scientific aspects of fracture. The RTG will foster synergies in research and advanced education and is intended to become a key element in FAU‘s interdisciplinary research areas “New Materials and Processes” and “Modelling–Simulation–Optimisation”.

FAU Key Research Priorities
New Materials and Processes

Sub projects:

Teilprojekt P1 – Chemistry at the Crack Tip
Teilprojekt P2 - Atomistics of Crack-Heterogeneity Interactions
Fracture in Polymer Composites: Nano to Meso
Teilprojekt P4 - Fragmentation in Large Scale DEM Simulations
Teilprojekt P5 - Compressive Failure in Porous Materials
Teilprojekt P6 - Fracture in Thermoplastics: Discrete-to-Continuum
Teilprojekt P7 - Collective Phenomena in Failure at Complex Interfaces
Teilprojekt P8 - Fracture in Polymer Composites: Meso to Macro
Teilprojekt P10 - Configurational Fracture/Surface Mechanics
Teilprojekt P11 - Fracture Control by Material Optimization
Teilprojekt P12 - Postdoctoral Project: Quantum-to-Continuum Model of Thermoset Fracture
Teilprojekt P9 - Adaptive Dynamic Fracture Simulation

Last updated on 2018-10-08 at 11:32