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Frontiers of Structural and Civil Engineering

, Volume 13, Issue 2, pp 380–396 | Cite as

A FEniCS implementation of the phase field method for quasi-static brittle fracture

  • Hirshikesh
  • Sundararajan NatarajanEmail author
  • Ratna Kumar AnnabattulaEmail author
Research Article
  • 452 Downloads

Abstract

In the recent years, the phase field method for simulating fracture problems has received considerable attention. This is due to the salient features of the method: 1) it can be incorporated into any conventional finite element software; 2) has a scalar damage variable is used to represent the discontinuous surface implicitly and 3) the crack initiation and subsequent propagation and branching are treated with less complexity. Within this framework, the linear momentum equations are coupled with the diffusion type equation, which describes the evolution of the damage variable. The coupled nonlinear system of partial differential equations are solved in a ‘staggered’ approach. The present work discusses the implementation of the phase field method for brittle fracture within the open-source finite element software, FEniCS. The FEniCS provides a framework for the automated solutions of the partial differential equations. The details of the implementation which forms the core of the analysis are presented. The implementation is validated by solving a few benchmark problems and comparing the results with the open literature.

Keywords

phase field method FEniCS brittle fracture crack propagation variational theory of fracture 

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Copyright information

© Higher Education Press and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Integrated Modeling and Simulation Lab, Department of Mechanical EngineeringIndian Institute of Technology MadrasChennaiIndia

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