TY - GEN
T1 - Numerical modelling of indenter/rock interaction under various indenter profiles
AU - Tiryaki, N.
AU - Williams, D. J.
AU - Alehossein, H.
AU - Ünver, B.
PY - 2010
Y1 - 2010
N2 - Investigation of indentation by the indenter/cutter of a mechanical excavation machine is important to explain the mechanics of rock cutting, and to improve tunnelling performance in mining and civil engineering applications. In this paper, an attempt is made to investigate indenter/rock interaction under various indenter profiles to understand the stress distribution and crack propagation in rock, as a function of indenter profile. The indenter/cutter profile is a primary parameter for rock cutting research. Numerical modelling is carried out using FRANC2D to determine the resulting stress distribution and discrete crack propagation, and to allow a comparison of the stress intensity factors (K I ) in front of the crack tips. In addition, rock chipping induced by two neighbouring constant cross-section (CCS) disc cutters is modelled for different cutter spacings. The numerical models of cutter spacing are validated by comparison with field data supplied from an ongoing tunnelling project.
AB - Investigation of indentation by the indenter/cutter of a mechanical excavation machine is important to explain the mechanics of rock cutting, and to improve tunnelling performance in mining and civil engineering applications. In this paper, an attempt is made to investigate indenter/rock interaction under various indenter profiles to understand the stress distribution and crack propagation in rock, as a function of indenter profile. The indenter/cutter profile is a primary parameter for rock cutting research. Numerical modelling is carried out using FRANC2D to determine the resulting stress distribution and discrete crack propagation, and to allow a comparison of the stress intensity factors (K I ) in front of the crack tips. In addition, rock chipping induced by two neighbouring constant cross-section (CCS) disc cutters is modelled for different cutter spacings. The numerical models of cutter spacing are validated by comparison with field data supplied from an ongoing tunnelling project.
UR - https://www.scopus.com/pages/publications/84860135822
UR - https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=performanshacettepe&SrcAuth=WosAPI&KeyUT=WOS:000290917200092&DestLinkType=FullRecord&DestApp=WOS_CPL
M3 - Conference contribution
AN - SCOPUS:84860135822
SN - 9780415586542
T3 - Rock Mechanics in Civil and Environmental Engineering - Proceedings of the European Rock Mechanics Symposium, EUROCK 2010
SP - 413
EP - 416
BT - Rock Mechanics in Civil and Environmental Engineering - Proceedings of the European Rock Mechanics Symposium, EUROCK 2010
T2 - European Rock Mechanics Symposium, EUROCK 2010
Y2 - 15 June 2010 through 18 June 2010
ER -