Skip to main content

Research Repository

Advanced Search

An investigation into the methods for modelling pre-existing cracks in phase field problems

Sims, B.; Bird, R.E.; Giani, S.; Coombs, W.M.

An investigation into the methods for modelling pre-existing cracks in phase field problems Thumbnail


Authors

Profile Image

Bradley Sims bradley.sims@durham.ac.uk
PGR Student Doctor of Philosophy

Dr Robert Bird robert.e.bird@durham.ac.uk
PDRA in Computational Solid Mechanics



Abstract

Phase field (PF) models are an increasingly popular method of numerically modelling fracture problems. While research has focused on the practical applications and computational efficiency of PF methods, little discussion exists around the merits of different methods of prescribing initial cracks in PF fracture problems. This paper presents a comparison of three methods for modelling pre-existing cracks, through Dirichlet-type PF boundary conditions, an initial strain history term, and through physical discontinuities in the mesh. The comparison is made using the load-displacement responses for a common tensile benchmark fracture problem.

Citation

Sims, B., Bird, R., Giani, S., & Coombs, W. (2023). An investigation into the methods for modelling pre-existing cracks in phase field problems.

Conference Name UKACM 2023
Conference Location Warwick, UK
Start Date Apr 19, 2023
End Date Apr 21, 2023
Acceptance Date Feb 28, 2023
Publication Date 2023
Deposit Date Jul 12, 2023
Publicly Available Date Jul 12, 2023
Public URL https://durham-repository.worktribe.com/output/1133575
Publisher URL https://sites.google.com/view/ukacm2023conference

Files




You might also like



Downloadable Citations