Teilprojekt P9 - Adaptive Dynamic Fracture Simulation

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. Sigrid Leyendecker
Prof. Dr. Thorsten Pöschel

Project members:
Dhananjay Phansalkar

Contributing FAU Organisations:
Chair of Applied Dynamics
Graduiertenkolleg 2423 Skalenübergreifende Bruchvorgänge: Integration von Mechanik, Materialwissenschaften, Mathematik, Chemie und Physik
Lehrstuhl für Multiscale Simulation of Particulate Systems
Zentralinstitut für Scientific Computing (ZISC)

Funding source: DFG / Graduiertenkolleg (GRK)
Acronym: GRK2423 - P9
Start date: 02/01/2019
End date: 30/06/2023

Research Fields

structure preserving simulation and optimal control
Chair of Applied Dynamics

Abstract (technical / expert description):

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.

Last updated on 2019-02-09 at 11:06

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