• No results found

fracture propagation

Isogeometric analysis of fracture propagation in saturated porous media due to a pressurised non-Newtonian fluid

Isogeometric analysis of fracture propagation in saturated porous media due to a pressurised non-Newtonian fluid

... the fracture was assumed to be continuous, thus effectively precluding the modelling of fluid-pres- surised fracture ...ture propagation in a saturated poroelastic medium induced by a pressurised ...

13

The role of rock joint frictional strength in the containment of fracture propagation

The role of rock joint frictional strength in the containment of fracture propagation

... Whereas fracture propagation is constrained by joints of low frictional resistance, in non- frictional joints, the unrestricted sliding of the joint plane increases the tendency for reinitiation and ...

24

Hydraulic Fracture Propagation Under Varying In-situ Stress Conditions of Reservoirs

Hydraulic Fracture Propagation Under Varying In-situ Stress Conditions of Reservoirs

... the propagation behavior of hydraulic ...hydraulic fracture propagation are predominantly controlled by the in-situ stress state of ...hydraulic fracture propagation and containment ...

9

Water Injection Fracture Pressure and Fracture Propagation Investigating in Poorly Consolidated Sandstone - Volume 9 Number 2 (Apr. 2018) - IJCEA

Water Injection Fracture Pressure and Fracture Propagation Investigating in Poorly Consolidated Sandstone - Volume 9 Number 2 (Apr. 2018) - IJCEA

... of fracture initiation and propagation pressure are an essential prerequisite to determine reasonable injection pressure for poorly consolidated ...and fracture initiation pressure by adopting the ...

7

Hydraulic fracture propagation in a heterogeneous stress field in a crystalline rock mass

Hydraulic fracture propagation in a heterogeneous stress field in a crystalline rock mass

... stimulated fracture sys- tem (Maxwell et ...hydraulic fracture or a fracture ...the fracture tip, (2) the stress concen- tration at the fracture tip causing shear slip along suitably ...

28

Leak   Induced Fracture Propagation Modeling

Leak Induced Fracture Propagation Modeling

... The degenerate faces of the fluid mesh along the crack propagation path open up as the structure deforms due to pressure and as the crack propagates.. The originally degenerat[r] ...

8

Effect of Pressure on the Fracture of Compacted Argillaceous Particles

Effect of Pressure on the Fracture of Compacted Argillaceous Particles

... Works ® . The powder compaction simulation process has been studied by several authors [3-5]. The industrial us- ability of these simulations to determine density gradi- ents in compacted powder parts for different ...

6

Effect of Needle Punching Process on a Chopped Strand Mat Composite with an Open Hole

Effect of Needle Punching Process on a Chopped Strand Mat Composite with an Open Hole

... in fracture propagation behavior were investigated by using video of the area around the hole recorded during tensile ...during fracture propagation and after break ...the fracture ...

14

Strengths and strain energies of volcanic edifices: implications for eruptions, collapse calderas, and landslides

Strengths and strain energies of volcanic edifices: implications for eruptions, collapse calderas, and landslides

... This paper has three main aims. The first is to explain why, in comparison with basaltic edifices (shield volcanoes), stratovolcanoes can maintain steeper slopes and appear to be less frequently subject to large-scale ...

18

Investigating the Possibility of Using only Water and Proppants as Hydraulic Fracturing Fluid to Preventing Environmental Impact of Fracking Additives

Investigating the Possibility of Using only Water and Proppants as Hydraulic Fracturing Fluid to Preventing Environmental Impact of Fracking Additives

... 765psi, fracture initiation pressure of 850 psi, fracture propagation pressure of 780 psi and instantaneous shut-in pressure of 776 ...psi, fracture initiation pressure of 818psi, ...

7

Fracture Dynamic Propagation Model of High-Energy Gas Fracturing for Casing Perforated Well

Fracture Dynamic Propagation Model of High-Energy Gas Fracturing for Casing Perforated Well

... total fracture propagation length driven by the high-energy gas, L1(t) is the injection length of the high-energy gas in the fracture, and L 0 is the initial fracture length with a value equal ...

12

Analysis of Fatigue Crack Initiation and Propagation in Cold Forging Tools by Local Approach of Fracture

Analysis of Fatigue Crack Initiation and Propagation in Cold Forging Tools by Local Approach of Fracture

... of fracture based on continuum damage mechanics (CDM) combined with the finite element method (FEM) was applied to establish a more precise method of estimation of service life of cold forging tools by simulating ...

8

Effective Toughness of Heterogeneous Materials

Effective Toughness of Heterogeneous Materials

... ation fracture model follows the spirit of Griffith’s theory in brittle frac- ture [ 37 ...variation fracture model Gamma-converges to a sum of elastic energy and fracture energy [ 1 ...variation ...

125

Compression Compression Fatigue and Fracture Behaviors of Zr50Al10Cu37Pd3 Bulk Metallic Glass

Compression Compression Fatigue and Fracture Behaviors of Zr50Al10Cu37Pd3 Bulk Metallic Glass

... the fracture part. The blunting and re-sharpening of the crack propagation is not significant, ...fast- fracture regions under the tension-tension ...sponding fracture morphologies are the ...

6

The Analysis of Light-duty Truck Diesel Engine Crankshaft Failure

The Analysis of Light-duty Truck Diesel Engine Crankshaft Failure

... evaluated the fracture analysis of some crankshafts of four-cylinder diesel engine. FEM results revealed that the most vulnerable point of fracture is on the fillet of the last crankpin (closest to the ...

7

Microstructures and Mechanical Properties of Spark Plasma Sintered Al2O3 Co Composites Using Electroless Deposited Al2O3 Co Powders

Microstructures and Mechanical Properties of Spark Plasma Sintered Al2O3 Co Composites Using Electroless Deposited Al2O3 Co Powders

... sintered composites was identified using an X-ray diffrac- tometer (XRD, D/MAX-250, Rigaku, Japan) with CuK radiation ( ¼ 0:154056 nm). FE-SEM (Sirion, FEI, Nether- lands) and TEM (JEM 2010, JEOL, Japan) techniques were ...

5

Estimation of Fracture path in the Structures and the Influences of Non-singular term on crack propagation

Estimation of Fracture path in the Structures and the Influences of Non-singular term on crack propagation

... In the present research, a fully Automatic crack propagation as one of the most complicated issues in fracture mechanics is studied whether there is an inclusion or no inclusion in the structures. In this ...

21

3d dynamic fracture and fragmentation of agr graphite brick slices using xczm

3d dynamic fracture and fragmentation of agr graphite brick slices using xczm

... dynamic fracture of graphite and the PSC mechanism in graphite brick slices using a multiple crack algorithm developed for use with the XCZM crack propagation ...

10

Recent advancements on the phase field approach to brittle fracture for heterogeneous materials and structures

Recent advancements on the phase field approach to brittle fracture for heterogeneous materials and structures

... of fracture events in heterogenous media and thin film-substrate ...[43], fracture phenomena were analyzed based on the variational approach of fracture via a numeri- cal approach denominated as ...

29

Design and Vibratory Analysis of High Pressure Steam Turbine Moving Blade

Design and Vibratory Analysis of High Pressure Steam Turbine Moving Blade

... ABSTRACT: In this paper addresses the issue of steam turbine efficiency by discussing the overhaul design of high pressure steam turbine blades. A specific focus on blade profile, material used in the production of steam ...

8

Show all 8033 documents...

Related subjects