Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 190-205 |
| Seitenumfang | 16 |
| Fachzeitschrift | Underground Space (China) |
| Jahrgang | 3 |
| Ausgabenummer | 3 |
| Frühes Online-Datum | 18 Juni 2018 |
| Publikationsstatus | Veröffentlicht - Sept. 2018 |
Abstract
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 Multiphysics. 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).
ASJC Scopus Sachgebiete
- Ingenieurwesen (insg.)
- Tief- und Ingenieurbau
- Erdkunde und Planetologie (insg.)
- Geotechnik und Ingenieurgeologie
- Ingenieurwesen (insg.)
- Bauwesen
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in: Underground Space (China), Jahrgang 3, Nr. 3, 09.2018, S. 190-205.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Adaptive phase field simulation of quasi-static crack propagation in rocks
AU - Zhou, Shuwei
AU - Zhuang, Xiaoying
N1 - Funding information: The authors gratefully acknowledge financial support provided by the Sino-German (CSC-DAAD) Postdoc Scholarship Program 2016 .
PY - 2018/9
Y1 - 2018/9
N2 - 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 Multiphysics. 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).
AB - 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 Multiphysics. 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).
KW - Adaptive scheme
KW - Crack propagation
KW - Phase field
KW - Rock
UR - http://www.scopus.com/inward/record.url?scp=85054170879&partnerID=8YFLogxK
U2 - 10.1016/j.undsp.2018.04.006
DO - 10.1016/j.undsp.2018.04.006
M3 - Article
AN - SCOPUS:85054170879
VL - 3
SP - 190
EP - 205
JO - Underground Space (China)
JF - Underground Space (China)
SN - 2096-2754
IS - 3
ER -