Results 61 to 70 of about 486,844 (378)
Advanced Biology, EarlyView.In this study, a new type of bioactive glass fiber ‐based composite magnesium phosphate bone cement is prepared and verified that its mechanical strength and biological properties. In addition, the cement may have played a biologically active role in the Notch and HIF signaling pathways.
Yuzheng Lu +12 more
wiley +1 more source
A multiscale flux basis for mortar mixed discretizations of reduced Darcy-Forchheimer fracture models [PDF]
Computer Methods in Applied Mechanics and Engineering 354
(2019)16-36, 2018 In this paper, a multiscale flux basis algorithm is developed to efficiently solve a flow problem in fractured porous media. Here, we take into account a mixed-dimensional setting of the discrete fracture matrix model, where the fracture network is represented as lower-dimensional object.
arxiv +1 more source
Embedded Fracture Model for Coupled Flow and Geomechanics [PDF]
arXiv, 2020 Fluid injection and production cause changes in reservoir pressure, which result in deformations in the subsurface. This phenomenon is particularly important in reservoirs with abundant fractures and faults because the induced slip and opening of the fractures may significantly alter their hydraulic properties. Modeling strongly coupled poro-mechanical
arxiv
Fractures in complex fluids: the case of transient networks [PDF]
, 2013 We present a comprehensive review of the current state of fracture phenomena in transient networks, a wide class of viscoelastic fluids. We will first define what is a fracture in a complex fluid, and recall the main structural and rheological properties of transient networks.
arxiv +1 more source
Tracer dispersion in two-dimensional rough fractures [PDF]
Phys. Rev. E, 63, 056104 (2001), 2000 Tracer diffusion and hydrodynamic dispersion in two-dimensional fractures with self-affine roughness is studied by analytic and numerical methods. Numerical simulations were performed via the lattice-Boltzmann approach, using a new boundary condition for tracer particles that improves the accuracy of the method. The reduction in the diffusive transport,
arxiv +1 more source
Mechanism of upward mixed crack propagation in long wall working face
Meikuang Anquan, 2021 In order to reveal the development mechanism of upward fracture in longwall face mining, based on mixed mode fracture extension theory in fracture mechanics, fracture mechanics is applied to analyze the stress state of strata on the top of the upward ...
CAO Jian, GAO Bin, HUANG Qingxiang
doaj +1 more source
Finite volume discretisation of fracture deformation in thermo-poroelastic media [PDF]
arXiv, 2020 This paper presents a model where thermo-hydro-mechanical processes are coupled to a deformation model for preexisting fractures. The model is formulated within a discrete-fracture-matrix framework where the rock matrix and the fractures are considered as individual subdomains, and interaction between them takes place on the matrix-fracture interfaces.
arxiv
Estimating Un-propped Fracture Conductivity and Fracture Compliance from Diagnostic Fracture Injection Tests [PDF]
SPE Journal, 23(05):1648-1668, 2018 Fractures are ubiquitous in the subsurface. The flow and mechanical properties of these fractures are controlled by its compliance or stiffness. Characterizing fracture compliance and conductivity is crucial in applications such as fault zone studies, underground CO2 sequestration, nuclear waste repositories, geothermal energy exploitation and ...
arxiv +1 more source
Fracture Mechanics Characterization of an AnisotropicGeomaterial [PDF]
, 2012 Argillites are considered worldwide as potential host rock for high level radioactive waste given the low permeability and strong adsorption potential.
Barpi, Fabrizio +4 more
core +1 more source
Introducing platform surface interior angle (PSIA) and its role in flake formation, size and shape.
PLoS ONE, 2020 Four ways archaeologists have tried to gain insights into how flintknapping creates lithic variability are fracture mechanics, controlled experimentation, replication and attribute studies of lithic assemblages.
Shannon P McPherron +12 more
doaj +2 more sources