... & gas specimen displacement hydraulic fracturing simulation fracture strips engineering munjiza platen knight tensile strength interface propagation paraview tension test rougier national laboratory new mexico ARMA 22 465 Concrete Fracture and Stress Analysis using the Combined...

... fracture closure platen engineering ARMA 22-805 Experiments and Modeling of Proppant Embedment and Fracture Conductivity for the Caney Shale, Oklahoma, USA Katende, A., Allen, C., Massion, C., Awejori, A. G, Xiong, F., Radonjic. M*, Hydraulic Barrier and Materials Characterization Laboratory, 126, 127...

... & gas reservoir geomechanics permeability seismicity research group university expansion coefficient platen container experimental determination rock xuejun zhou reservoir geomechanic granite utah ARMA 22 2137 Experimental Determination of Poroelastic Properties of Utah FORGE Rocks Xuejun...

... property cement chemistry platen mine tailings application raw material tensile strength strain level geopolymer molar concentration room temperature cement formulation zhang strength strain gauge strain value compressive strength strain concentration ARMA 21 1795 Evaluation of tensile...

... anisotropy as well as imparting roughness consistent with field and laboratory observations. hydraulic fracturing Fluid Dynamics mesh planar fracture Modeling & Simulation fracture characterization platen geometry flow in porous media Upstream Oil & Gas frash random mesh Reservoir...

... experimental measures of peak stress as a function of confining pressure. Upstream Oil & Gas platen flow in porous media element method finite-discrete element simulation maximum shear stress experiment shear stress viswanathan fracture unconventional reservoir Fluid Dynamics frash...

... laboratory testing apparatus mechanism thb Upstream Oil & Gas platen Laboratory Scale roorda quarry horizontal stress vertical load failure mechanism constant vertical load apparatus lateral displacement numerical model lateral load 1. INTRODUCTION Buckling failure (pop-up) is one...

... it expensive and time-consuming. This study investigated the impact of biaxial stress state on the failure response of intact rock using a simple and cost-effective design. The apparatus consists of two platens that apply biaxial compressive stress on a cubical specimen when placed inside the uniaxial testing...

... at the bottom platen of the model to study the influence of transient wave motion on failure in a controlled fashion. Our results show that the external vibration can advance the formation of the upcoming large local failure events and delay or advance the final catastrophic failure depending on the vibrational...

... 3 ) which represent insitu conditions very close to reality. historical development Rock mechanics specimen Reservoir Characterization strength rigid platen application Upstream Oil & Gas platen triaxial testing machine apparatus loading reservoir geomechanics testing machine...

... in Colorado and Utah that have caused injuries or disruption of the mining activities. reservoir geomechanics reservoir characterization fragment platen upstream oil & gas kinetic energy metals & mining strain burst compressive strength rock burst rock specimen specimen strength...

... reservoir geomechanics Peak Load Reservoir Characterization displacement experiment np 15 free surface coefficient Upstream Oil & Gas platen specimen hydraulic fracturing Simulation loading platen sensor surface instability test numerical model deformation end platen...

... and preliminary application in quantifying damage during laboratory testing discussed. Reservoir Characterization fracture pattern Brazilian hydraulic fracturing UC test platen reservoir geomechanics strength numerical simulation compressive strength Upstream Oil & Gas Simulation Rock...

... of thin steel plate was installed between the platen and C in some cases. Platen 15cm 15cm 15 cm Loading Permanent Lining (C) 30cm 30 cm A dd iti on al Li ni ng (L ) A dd iti on al Li ni ng (R ) Spacer (Thin steel plate) Fig. 2. Outline of the tests. Two series of experiments were used as shown in Figure...

... shapes against the occurrence of rockburst. The rectangular tunnel produced the highest magnitudes of the rockburst indicators and proved to be the most unstable of the three geometries which were tested. platen failed zone rectangular tunnel rockburst tunnel shape UC test specimen finite...

... elastic platens each measuring 1 m in height. The combined system of platens and specimen is shown in Figure 1. Fig. 1. Uniaxial compressive strength test configuration in FLAC3D model. The elastic modulus of the platens was controlled between tests and spanned the range of 2 to 100 GPa. The coal specimen...

.... This testing method is referred to as the split-platen compression test. The method used for this test involves placing a cylindrical sample of material between a set of eight concentric steel rings and the solid platen of a compression testing machine. Strain gauges are bonded to the outer surface...

...; illustrations may not be copied. The abstract must contain conspicuous acknowledgement of where and by whom the paper was presented. ABSTRACT: In this study we investigate unstable compressive failure of rock using numerical modeling. An unconfined compression test with variable platen stiffness is modeled...

... Apparatus, was designed and built based on a passive stiff-frame concept [8]. The biaxial device (U.S. Patent 5,063,785) is unique because it allows the failure plane to develop and propagate in an unrestricted manner. By placing the upper platen on a low friction linear bearing, the prismatic specimen...

... with different configurations. The specimens were tested under tuniaxial loading conditions by applying a uniformly distributed load through a loading platen placed at the top of specimen. Teflon sheets were placed at the top and bottom of the rock mass specimen to reduce the end friction. Deformations...