...SELECTING ADVANCED CONSTITUTIVE MODELS: AN OVERVIEW A. O. Sfriso * University of Buenos Aires and SRK Consulting Buenos Aires, Argentina (* Corresponding author: asfriso@srk.com.ar) Innovations in Applied and Theoretical Rock Mechanics Editors Hassani, Hadjigeorgiou, Archibald ©2015...

... loading condition rock mechanics isrm13 MPa constitutive model strain rate ANALYSIS OF THE VISCOPLASTIC BEHAVIOUR OF UNDERGROUND OPENINGS IN ROCKSALT *M. Aubertin École Polytechnique de Montréal Dept. Civil, Geological and Mining Engineering CP 6079, Station Centre-Ville Montreal, QC, Canada H3C...

... were determined by iterative procedure and in order to perform this procedure, constitutive model was modified to fit the experimental condition. The anisotropic ratios of elastic constants were evaluated and the applicability of the methodology was assessed. Apparent Brazilian tensile strength profile...

... organic-rich chalk Upstream Oil & Gas Reservoir Characterization 13th international congress geometry mechanical property moduli constitutive model porosity normalized stiffness factor kerogen rock mechanics isrm13 Feinstein mishash formation fraction bulk modulus volumetric fraction...

... is important in the design of near surface/ deep geotechnical works (mining excavation, dam foundation, power plants, underground caverns, and slopes). In last 40 years, many constitutive models are developed to predict shear strength of rock joints under CNL conditions (Patton 1966; Landanyi and Archambault...

.... It is assumed in the algorithm that caved materials fully fill the stope voids after every major caving. Figure 5 shows a flowchart for the numerical modelling of longwall mining. Numerical simulation code FLAC3D was used for the work. A strain softening constitutive model was used to simulate the mechanical...

... ABSTRACT A particular elastic-plastic-brittle constitutive model based on considering the heterogeneity of rock and the features of deep engineering is presented in this paper. In this model, the multiple yield criteria based on stress space and the ductile failure criteria based on strain...

... of the basic tasks in design, stability analysis, prediction and control of failure for rock engineer- ing, such as constitutive modeling, risk modeling, hazard modeling, etc. Besides of the mechanical response of rocks to stress can be highly nonlinear, the influence of differ- ent engineering and geological...

... ABSTRACT Constitutive model of rock-like brittle material, which is necessary for studying blasting mechanism, stress wave propagation, destruction effect analysis of underground structure, is always one of the most important aspects in the study of rock mechanics. On the basis of damage...

... related to rock mechanical properties, but the mechanism is still not clear. Therefore, it is necessary to explore the mechanical properties of these weak rocks and construct an adequate constitutive model to predict their behaviors. In this paper, we first introduce the deformation characteristics...

... of the behaviour of the rock mass during the tunnel's construction stages, as well as in the long term, require numerical modelling with the use of appropriate constitutive models. In this paper, current models which are based on the viscoplasticity coupled to the damage theory are presented. They enable...

... In this paper, we present a sensitivity study for the numerical modelling of hydromechanical coupling around a shaft in partially saturated claystone. Two representative constitutive models have been used: an elastoplastic damage model (IDEPLML) and an elastic perfect plastic model based...

... Upstream Oil & Gas mechanism slope failure hybrid finite-discrete-element Continuum failure surface fracture constitutive model Randa rockslide deformation 275 Eberhardt, E., Stead, D., Coggan, J.S., Willenberg, H., Hybrid finite-/discrete-element modelling of progressive failure in massive...

.... By integrating short-term and long-term strength, dilatancy, damage and healing into the newly extended Hou/Lux constitutive model for rock salt, it is possible to treat the tertiary creep, to identify the EDZ around underground facilities and to predict the time-dependent development of the EDZ in rock salt...

... laboratories in order to obtain direct measurements of the tensile strength. It seems interesting to explore the use of the proposed method as a standard procedure. Upstream Oil & Gas failure criterion procedure shear strength Rock Mech strength laboratory general report constitutive model...

... and old stresses, are of sufficient quality to render the technique Immediately useful as a standalone constitutive model. However to further extend their usefulness a method of integration of the artificial neural network constitutive model into FLAC is shown. FLAC is particularly suited to the strategy...

... code is briefly described. A failure criterion is proposed and is shown to fit well the direct shear test data obtained for sawtooth concrete-rock interfaces. The predictive performance of the constitutive model is assessed and typical results are presented in this paper. RESUME: Cette communication...

... reservoir geomechanics Proc Desai Symp Reservoir Characterization strength num stress-strain behaviour Artificial Intelligence Rock mechanics discontinuity meth constitutive model deformation rock mass Analyt Upstream Oil & Gas Rotterdam Balkema rock material Rock Mech...

...Constitutive modeling of salt behavior - State of the technology· Modelisation constitutive du comportement du sel- Situation actuelle de la technologie Konstitutive Beschreibung von Steinsalz - Stand der Technik~ , D. E. MUNSON &W R.WAWERSIK, Sandia National laboratories, Albuquerque, N. Mex., USA...

... Oil & Gas horizontal closure predictive technology determination flow potential excavation constitutive model Munson deformation underground excavation Development 'and validation of a predictive technology for creep closure of - underground rooms' in salt ' ," J ' Entwicklung und...