Results 41 to 50 of about 1,205,198 (248)

Membrane finite element method for simulating fluid flow in porous medium

open access: yesWater Science and Engineering, 2009
A new membrane finite element method for modeling fluid flow in a porous medium is presented in order to quickly and accurately simulate the geo-membrane fabric used in civil engineering.
Mei-li Zhan   +4 more
doaj   +1 more source

A Framework for Nonconforming Mixed Finite Element Method for Elliptic Problems in ℝ3

open access: yesJournal of Applied Mathematics, 2020
In this paper, we suggest a new patch condition for nonconforming mixed finite elements (MFEs) on parallelepiped and provide a framework for the convergence.
Gwanghyun Jo, J. H. Kim
doaj   +1 more source

Simulation‐Based Analysis of Insert Pull‐Out in Nickel‐Polyurethane Hybrid Foams Using CT‐Derived Geometries

open access: yesAdvanced Engineering Materials, EarlyView.
CT‐based finite element simulations combined with in situ X‐ray computed tomography are used to analyze insert pull‐out in nickel‐coated polymer foams. Despite variations in material parameters, deformation consistently concentrates within a narrow annular region around the insert.
Yannik Bautz   +4 more
wiley   +1 more source

The two-fold singularity of discontinuous vector fields [PDF]

open access: yes, 2009
When a vector field in 3 dimensions is discontinuous on a smooth codimension one surface, it may be simultaneously tangent to both sides of the surface at generic isolated points (singularities).
M. R. Jeffrey   +4 more
core   +1 more source

On Interaction Between Mode III Crack and a Nonideal Bimaterial Interface

open access: yesEngineering Transactions, 2015
Behaviour of a stress field in a neighbourhood of a crack tip placed near a nonideal interface is investigated. Along the interface tractions are continuous, but displacements are assumed to be discontinuous, and proportional to the tractions ...
G.S. Mishuris
doaj   +1 more source

Rapidly Solidified High‐Strength Invar 36 Prepared by Planar‐Flow Melt Spinning

open access: yesAdvanced Engineering Materials, EarlyView.
The Invar 36 alloy was rapidly solidified using the planar‐flow melt‐spinning technique. Ribbon samples with thicknesses ranging from 20 to 160 mm were produced. As the grain size of the ribbon decreased to sub‐micron levels, the hardness increased by more than 2 times.
Bekir Akgül, Mehmet Kul
wiley   +1 more source

On a nonlinear degenerate parabolic transport-diffusion equation with a discontinuous coefficient

open access: yesElectronic Journal of Differential Equations, 2002
We study the Cauchy problem for the nonlinear (possibly strongly) degenerate parabolic transport-diffusion equation $$ partial_t u + partial_x (gamma(x)f(u))=partial_x^2 A(u), quad A'(cdot)ge 0, $$ where the coefficient $gamma(x)$ is possibly ...
John D. Towers   +2 more
doaj  

Study on Failure Mechanisms and Mechanical Properties of Rock Masses with Discontinuous Joints Based on 3D Printing Technology

open access: yesApplied Sciences
Within natural rock masses, discontinuous joints are more prevalent than continuous joints. Discontinuous joints refer to non-persistent structural planes separated by intact rock bridges and can be quantified by the continuity coefficient KA.
Yanshuang Yang   +3 more
doaj   +1 more source

Supporting AI Readiness Through Digital Workflows in Materials Science

open access: yesAdvanced Engineering Materials, EarlyView.
Digitalization drives innovation in materials science by connecting data silos and turning heterogeneous processes into reusable research pipelines. Across 13 MaterialDigital projects, digital workflows reveal complementary pathways toward AI‐ready materials research, founded on structured data, persistent artifacts, executable orchestration, and ...
Marian Bruns   +67 more
wiley   +1 more source

Third-order operator-differential equations with discontinuous coefficients and operators in the boundary conditions

open access: yesElectronic Journal of Differential Equations, 2013
We study a third-order operator-differential equation on the semi-axis with a discontinuous coefficient and boundary conditions which include an abstract linear operator.
Araz R. Aliev, Nazila L. Muradova
doaj  

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