A phase‐field model for brittle fracture of anisotropic materials

Summary In the present work, a phase field damage model is developed to address the numerical simulation of brittle fracture. This model successfully captures some important aspects of crack propagation, including crack branching and bifurcation. In addition, the proposed phase field model has been...

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Bibliographic Details
Published in:International journal for numerical methods in engineering 2020-08, Vol.121 (15), p.3362-3381
Main Authors: Gmati, Hela, Mareau, Charles, Ammar, Amine, El Arem, Saber
Format: Article
Language:English
Subjects:
anisotropic elasticity
Bifurcations
Brittle fracture
Computer simulation
Crack propagation
Crystallography
Damage assessment
damage‐gradient model
Engineering Sciences
finite elements
Mathematical models
phase field method
Stiffness
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Summary:Summary In the present work, a phase field damage model is developed to address the numerical simulation of brittle fracture. This model successfully captures some important aspects of crack propagation, including crack branching and bifurcation. In addition, the proposed phase field model has been developed in the general framework of anisotropic elasticity. It can thus be used for the simulation of brittle fracture in polycrystalline materials, for which crack propagation is impacted by crystallographic orientation because of the anisotropic character of stiffness properties.
ISSN:0029-5981
1097-0207
DOI:10.1002/nme.6361