Teilprojekt P9 - Adaptive Dynamic Fracture Simulation

Drittmittelfinanzierte Gruppenförderung - Teilprojekt

Details zum übergeordneten Gesamtprojekt

Titel des Gesamtprojektes: Skalenübergreifende Bruchvorgänge: Integration von Mechanik, Materialwissenschaften, Mathematik, Chemie und Physik (FRASCAL)

Sprecher/in des Gesamtprojekts:
Prof. Dr.-Ing. Paul Steinmann (Lehrstuhl für Technische Mechanik)

Details zum Projekt

Prof. Dr.-Ing. Sigrid Leyendecker
Prof. Dr. Thorsten Pöschel

Beteiligte FAU-Organisationseinheiten:
Lehrstuhl für Multiscale Simulation of Particulate Systems
Lehrstuhl für Technische Dynamik
Zentralinstitut für Scientific Computing (ZISC)

Mittelgeber: DFG / Graduiertenkolleg (GRK)
Akronym: GRK2423 - P9
Projektstart: 02.01.2019
Projektende: 30.06.2023

Abstract (fachliche Beschreibung):

In the simulation of continuum mechanical problems of materials with
heterogeneities caused e.g. by a grained structure on a smaller scale
compared to the overall dimension of the system, or by the propagation
of discontinuities like cracks, the spatial meshes for finite element
simulations are typically consisting of coarse elements to save
computational costs in regions where less deformation is expected, as
well as finely discretised areas to be able to resolve discontinuities
and small scale phenomena in an accurate way. For transient problems,
spatial mesh adaption has been the topic of intensive research and many
strategies are available, which refine or coarsen the spatial mesh
according to different criteria. However, the standard is
to use the same time step for all degrees of freedom and adaptive time
step controls are usually applied to the complete system.

The aim of this project is to investigate the kinetics of heterogeneous,
e.g. cracked material, in several steps by developing suitable
combinations of spatial and temporal mesh adaption strategies.

Zuletzt aktualisiert 2018-16-08 um 14:24