Adaptive phase field simulation of quasi-static crack propagation in rocks

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Zhou, S.; Zhuang, X.: Adaptive phase field simulation of quasi-static crack propagation in rocks. In: Underground Space 3 (2018), Nr. 3, S. 190-205. DOI:

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Sum total of downloads: 314

In this study, we present an adaptive phase field method (APFM) for modeling quasi-static crack propagation in rocks. Crack initiation due to positive strains is considered, and a numerical simulation is implemented using a commercial software, COMSOL Multi-physics. Two benchmark tests are first examined, namely, a single-edge-notched square plate subjected to respective tension and shear loadings. The crack propagation in Brazil splitting tests, 2D notched semi-circular bend (NSCB) tests, and 3D NSCB tests are subsequently simulated and analyzed. All the numerical examples indicate that the propagation of the cracks is autonomous and external fracture criteria are not required for phase field modeling. Furthermore, the adaptive remeshing scheme reduces unnecessary global mesh refinement and exhibits good adaptability for fracture modeling. The simulations are in good agreement with the experimental observations, and thereby indicate the feasibility and practicability of the APFM in rocks (even in 3D cases)
License of this version: CC BY-NC-ND 4.0 Unported
Document Type: article
Publishing status: publishedVersion
Issue Date: 2018
Appears in Collections:Fakultät für Maschinenbau

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pos. country downloads
total perc.
1 image of flag of Germany Germany 91 28.98%
2 image of flag of United States United States 57 18.15%
3 image of flag of China China 33 10.51%
4 image of flag of India India 16 5.10%
5 image of flag of Korea, Republic of Korea, Republic of 13 4.14%
6 image of flag of Russian Federation Russian Federation 12 3.82%
7 image of flag of No geo information available No geo information available 10 3.18%
8 image of flag of Singapore Singapore 9 2.87%
9 image of flag of Brazil Brazil 9 2.87%
10 image of flag of United Kingdom United Kingdom 7 2.23%
    other countries 57 18.15%

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