caa a22 4500 463174887 CHVBK 20180406164823.0 cr unu---uuuuu 170326e20070401xx s 000 0 eng 10.1007/s00603-006-0091-x doi (NATIONALLICENCE)springer-10.1007/s00603-006-0091-x Numerical Modelling of the Heterogeneous Rock Fracture Process Using Various Test Techniques [Elektronische Daten] [H. Y. Liu, S. Q. Kou, P.-A. Lindqvist, C. A. Tang] Summary: A series of numerical tests including both rock mechanics and fracture mechanics tests are conducted by the rock and tool (R-T2D) interaction code coupled with a heterogeneous masterial model to obtain the physical-mechanical properties and fracture toughness, as well as to simulate the crack initiation and propagation, and the fracture progressive process. The simulated results not only predict relatively accurate physical-mechanical parameters and fracture toughness, but also visually reproduce the fracture progressive process compared with the experimental and theoretical results. The detailed stress distribution and redistribution, crack nucleation and initiation, stable and unstable crack propagation, interaction and coalescence, and corresponding load-displacement curves can be proposed as benchmarks for experimental study and theoretical research on crack propagation. It is concluded that the heterogeneous material model is reasonable and the R-T2D code is stable, repeatable and a valuable numerical tool for research on the rock fracture process. Springer-Verlag, 2006 Keywords: Numerical modelling, fracture process, heterogeneity, fracture toughness, failure nationallicence Liu H. Y. Department of Civil and Environmental Engineering, Luleå University of Technology, Luleå, Sweden aut Kou S. Q. Department of Civil and Environmental Engineering, Luleå University of Technology, Luleå, Sweden aut Lindqvist P.-A Department of Civil and Environmental Engineering, Luleå University of Technology, Luleå, Sweden aut Tang C. A. Department of Engineering Mechanics, Dalian University of Technology, Dalian, P.R. China aut Rock Mechanics and Rock Engineering Springer-Verlag 40/2(2007-04-01), 107-144 0723-2632 40:2<107 2007 40 603 https://doi.org/10.1007/s00603-006-0091-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00603-006-0091-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Liu H. Y. Department of Civil and Environmental Engineering, Luleå University of Technology, Luleå, Sweden aut NATIONALLICENCE 700 1- Kou S. Q. Department of Civil and Environmental Engineering, Luleå University of Technology, Luleå, Sweden aut NATIONALLICENCE 700 1- Lindqvist P.-A Department of Civil and Environmental Engineering, Luleå University of Technology, Luleå, Sweden aut NATIONALLICENCE 700 1- Tang C. A. Department of Engineering Mechanics, Dalian University of Technology, Dalian, P.R. China aut NATIONALLICENCE 773 0- Rock Mechanics and Rock Engineering Springer-Verlag 40/2(2007-04-01), 107-144 0723-2632 40:2<107 2007 40 603 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer