Finite element modeling of rock cutting and its fragmentation process
Abstract
Rock cutting is a challenging problem from a modeling perspective. The challenges come from the complexity of the physics from the tool-rock interaction to the fracture process and propagation of the quasibrittle rocks. This study was aimed at developing a finite element procedure that was capable of providing reasonable estimates of cutting forces and, at the same time, capturing the essential characteristics of the fragmentation process. Published laboratory rock scratch tests were used as modeling targets since these tests encompass all essential characteristics of rock. Both shallow cuts and deep cuts from a rectangular cutter were analyzed first, and followed by modeling of shallow cuts from a disc cutter. It was concluded that rock cutting could be reasonably modeled by using a plasticity model, an element erosion scheme that remove an element when its energy release equals fracture energy, together with a proper selection of modeling parameters.
- Authors:
-
- Univ. of Pittsburgh, PA (United States). Dept. of Civil and Environmental Engineering
- Pennsylvania State Univ., University Park, PA (United States). Dept. of Geosciences
- Univ. of Pittsburgh, PA (United States). Dept. of Civil and Environmental Engineering and Dept. of Mechanical Engineering and Materials Science
- National Energy Technology Lab. (NETL), Pittsburgh, PA, (United States)
- Publication Date:
- Research Org.:
- National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)
- Sponsoring Org.:
- USDOE Office of Fossil Energy (FE)
- OSTI Identifier:
- 1239137
- Alternate Identifier(s):
- OSTI ID: 1422679
- Report Number(s):
- NETL-PUB-20219
Journal ID: ISSN 1365-1609
- Resource Type:
- Accepted Manuscript
- Journal Name:
- International Journal of Rock Mechanics and Mining Sciences
- Additional Journal Information:
- Journal Volume: 80; Journal Issue: C; Journal ID: ISSN 1365-1609
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 02 PETROLEUM; 03 NATURAL GAS
Citation Formats
Jaime, Maria C., Zhou, Yaneng, Lin, Jeen-Shang, and Gamwo, Isaac K. Finite element modeling of rock cutting and its fragmentation process. United States: N. p., 2015.
Web. doi:10.1016/j.ijrmms.2015.09.004.
Jaime, Maria C., Zhou, Yaneng, Lin, Jeen-Shang, & Gamwo, Isaac K. Finite element modeling of rock cutting and its fragmentation process. United States. https://doi.org/10.1016/j.ijrmms.2015.09.004
Jaime, Maria C., Zhou, Yaneng, Lin, Jeen-Shang, and Gamwo, Isaac K. Wed .
"Finite element modeling of rock cutting and its fragmentation process". United States. https://doi.org/10.1016/j.ijrmms.2015.09.004. https://www.osti.gov/servlets/purl/1239137.
@article{osti_1239137,
title = {Finite element modeling of rock cutting and its fragmentation process},
author = {Jaime, Maria C. and Zhou, Yaneng and Lin, Jeen-Shang and Gamwo, Isaac K.},
abstractNote = {Rock cutting is a challenging problem from a modeling perspective. The challenges come from the complexity of the physics from the tool-rock interaction to the fracture process and propagation of the quasibrittle rocks. This study was aimed at developing a finite element procedure that was capable of providing reasonable estimates of cutting forces and, at the same time, capturing the essential characteristics of the fragmentation process. Published laboratory rock scratch tests were used as modeling targets since these tests encompass all essential characteristics of rock. Both shallow cuts and deep cuts from a rectangular cutter were analyzed first, and followed by modeling of shallow cuts from a disc cutter. It was concluded that rock cutting could be reasonably modeled by using a plasticity model, an element erosion scheme that remove an element when its energy release equals fracture energy, together with a proper selection of modeling parameters.},
doi = {10.1016/j.ijrmms.2015.09.004},
journal = {International Journal of Rock Mechanics and Mining Sciences},
number = C,
volume = 80,
place = {United States},
year = {Wed Sep 30 00:00:00 EDT 2015},
month = {Wed Sep 30 00:00:00 EDT 2015}
}
Web of Science
Figures / Tables:
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Works referencing / citing this record:
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