In this paper, chip formation process during mechanical cutting of rock is simulated by using an explicit finite element code, LS-DYNA. In the simulation, the work-piece material properties have been modeled using the damage constitute material model. This model simulates the separation of the chip from the work-piece and the simultaneous breakage of the chip into multiple fragments. In the simulation, a rigid steel tool was moved at various sliding velocities, namely 1, 4, 10, 50 and 100 mm/s against a stationary rock material. For a given sliding velocity, the simulations were carried out for various cutting depths, namely 1, 2, 3 and 4 mm. The variation of stresses and the amount of chip formation at different depths of cut and velocities have been investigated. Overall, the results indicate that the explicit FEM is a powerful tool for simulating rock cutting and chip formation. More specifically, the separation of chip from the work-piece at different depths of cut was distinctly shown using this numerical model.
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ASME/STLE 2009 International Joint Tribology Conference
October 19–21, 2009
Memphis, Tennessee, USA
Conference Sponsors:
- Tribology Division
ISBN:
978-0-7918-4895-1
PROCEEDINGS PAPER
Finite Element Modeling of Discontinuous Chip Formation During Rock Cutting
Pradeep L. Menezes,
Pradeep L. Menezes
University of Wisconsin-Milwaukee, Milwaukee, WI
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Michael R. Lovell,
Michael R. Lovell
University of Wisconsin-Milwaukee, Milwaukee, WI
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Jeen-Shang Lin,
Jeen-Shang Lin
University of Pittsburgh, Pittsburgh, PA
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C. Fred Higgs, III
C. Fred Higgs, III
Carnegie Mellon University, Pittsburgh, PA
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Pradeep L. Menezes
University of Wisconsin-Milwaukee, Milwaukee, WI
Michael R. Lovell
University of Wisconsin-Milwaukee, Milwaukee, WI
Jeen-Shang Lin
University of Pittsburgh, Pittsburgh, PA
C. Fred Higgs, III
Carnegie Mellon University, Pittsburgh, PA
Paper No:
IJTC2009-15197, pp. 463-465; 3 pages
Published Online:
February 16, 2010
Citation
Menezes, PL, Lovell, MR, Lin, J, & Higgs, CF, III. "Finite Element Modeling of Discontinuous Chip Formation During Rock Cutting." Proceedings of the ASME/STLE 2009 International Joint Tribology Conference. ASME/STLE 2009 International Joint Tribology Conference. Memphis, Tennessee, USA. October 19–21, 2009. pp. 463-465. ASME. https://doi.org/10.1115/IJTC2009-15197
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