Arrest Mechanisms of Buoyant Hydraulic Fractures

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This article investigates the effects of voids, joint geometry, and test conditions on the quasi-static Mode I fracture performance of thick adhesive Double Cantilever Beam (DCB) joints such as those prevailing in wind industry and shipbuilding. The specim ...

Modeling the 3D internal crack under compression entails complex fracture mechanics (mode I-II-III fracture), resulting in substantial computational costs and challenges in characterizing fracture morphology characterization for Phase Field Method (PFM) si ...

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Hydraulic fractures are driven by an internal fluid pressure exceeding the minimum compressive stress, propagating in a direction perpendicular to the latter. This class of tensile fractures has gained interest over the last fifty years due to the developm ...

Whether used to enhance the hydrocarbon production from low permeability rocks or to measure the minimum in-situ principal stress in rock formations, height growth of a hydraulic fracture above the formation of interest is a key metric for the design of su ...

Hydraulic fractures are tensile fractures that occur in solid materials due to the natural intrusion or anthropogenic injection of a viscous fluid into a fracture channel. The deliberate creation of hydraulic fractures is part of an industrial technology h ...

The influence of voids on the quasi-static Mode I fracture performance of thick adhesive joints was investigated in this article. Double Cantilever Beam (DCB) joints were manufactured with glass fiber reinforced epoxy adherends and SikaPower®-830 epoxy adh ...

Solid particulate additives are sometimes used to promote the uniform growth of multiple hydraulic fractures in horizontal oil and gas wells. The principle is that solid particulates block, accumulate, and form larger porous plugging zones preferentially a ...

We investigate the fluid-driven growth of a shear crack along a frictional discontinuity and its transition to hydraulic fracturing (sometimes referred to as hydraulic jacking) under plane-strain conditions. We focus on the case of a constant friction coef ...

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In impermeable media, a hydraulic fracture can continue to expand even without additional fluid injection if its volume exceeds the limiting volume of a hydrostatically loaded radial fracture. This limit depends on the mechanical properties of the surround ...

Many recent works have shown that the capacity of pultruded glass fiber-polymer structural members is governed by interlaminar failure. However, there is still a lack of information regarding the fracture properties associated and the best techniques to be ...

Hydraulic stimulation of enhanced deep geothermal reservoirs commonly targets pre-existing joint networks with the goal of increasing reservoir permeability. Here, we study the permeability and strength of joint-free and jointed Buntsandstein sandstones fr ...

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The stress state is an important parameter in terms of both earthquake nucleation and rupture. Here, a new stimulation technique is proposed for Enhanced Geothermal Systems (EGSs), which have previously been burdened with a number of high-profile incidence ...

Earthquakes are natural phenomena that cause ground shaking and damage to people and infrastructures. Despite significant progress achieved in understanding how earthquakes start, propagate, and arrest, many aspects of their physics and mechanics remain no ...

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Residual stresses in hot-rolled wide flange steel cross sections may lead to premature yielding, accelerated corrosion and brittle fracture of steel members. The above phenomena lead to a loss of a steel member's stiffness and resistance under mechanical l ...

Arrest Mechanisms of Buoyant Hydraulic Fractures

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Mode I fracture of thick adhesively bonded GFRP composite joints for wind turbine rotor blades

An adaptive phase field approach to 3D internal crack growth in rocks

Two-dimensional quasi-static delamination in composite laminates under Mode-I and Mode-II conditions

Water weakening and the compressive brittle strength of carbonates: Influence of fracture toughness and static friction

Estimation of the bar stress based on crack width measurements in reinforced concrete structures

Propagation of planar three-dimensional buoyant hydraulic fractures

Elongated hydraulic fracture emerging from layers of alternating fracture toughness

Three-dimensional hydraulic fracture propagation in homogeneous and heterogeneous media

INFLUENCE OF VOIDS ON THICK DCB JOINT BEHAVIOR

Modeling of solids particle diversion to promote uniform growth of multiple hydraulic fractures

Shearing and opening of a pre-existing discontinuity in response to fluid injection

Non-volatile data storage medium and system

Three-dimensional buoyant hydraulic fractures: finite volume release

Mode I and Mode II fracture behavior in pultruded glass fiber-polymer - Experimental and numerical investigation

Reactivation of variably sealed joints and permeability enhancement in geothermal reservoir rocks

A hybrid Selective Laser Sintering based process for the additive manufacturing of architectured composites

Single-Well Pore Pressure Preconditioning for Enhanced Geothermal System Stimulation

Nucleation, propagation, and scale dependence of laboratory frictional ruptures; implications for earthquake mechanics

Laterally unconfined neutral or negative buoyancy inflow into a quiescent ambient over sloping bottom

Proposed residual stress model for hot‐rolled wide flange steel cross sections