Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6925522 | Finite Elements in Analysis and Design | 2018 | 17 Pages |
Abstract
In this work, brittle fracture and thermo-mechanical induced cracks are simulated using a phase field model in 2D and 3D continua in homogeneous and heterogeneous materials. The phase field model for fracture has specific regulations regarding the finite element mesh size. Therefore, a mesh refinement algorithm by adopting a predictor-corrector mesh refinement strategy is used in both applications of mechanical and thermo-mechanical fracture models. Several mechanical and thermo-mechanical examples are presented in this work to prove the capability of the proposed numerical implementation. The multi-field problems are solved using a staggered solution algorithm with and without the parallelization of the system equations. The simulation times of the tested specimens are compared for different meshing criteria, adaptive refinement, pre-refinement of the expected crack path, and the global refinement of the specimen.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Science Applications
Authors
Hojjat Badnava, Mohammed A. Msekh, Elahe Etemadi, Timon Rabczuk,