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An optimization-based phase-field method for continuous-discontinuous crack propagation

Author
Geelen, R.; Liu, Y.; Dolbow, J.; Rodriguez-Ferran, A.
Type of activity
Journal article
Journal
International journal for numerical methods in engineering
Date of publication
2018-10-05
Volume
116
Number
1
First page
1
Last page
20
DOI
https://doi.org/10.1002/nme.5911 Open in new window
Repository
http://hdl.handle.net/2117/123200 Open in new window
URL
https://onlinelibrary.wiley.com/doi/abs/10.1002/nme.5911 Open in new window
Abstract
A new continuous-discontinuous strategy for the computational modeling of crack propagation within the context of phase-field models of fracture is presented. The method is designed to introduce and update a sharp crack surface within an evolving damage band, and to enhance the kinematics of the finite element approximation accordingly. The proposed approach relies on three key elements. First, we propose the use of a crack length functional to provide a trigger for initiating a continuous to di...
Citation
Geelen, R., Liu, Y., Dolbow, J., Rodriguez-Ferran, A. An optimization-based phase-field method for continuous-discontinuous crack propagation. "International journal for numerical methods in engineering", 5 Octubre 2018, vol. 116, núm. 1, p. 1-20.
Keywords
X-FEM, crack propagation, finite elements, optimization, phase-field approach
Group of research
LACÀN - Numerical Methods for Applied Sciences and Engineering

Participants