Results 61 to 70 of about 63,838 (312)

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

open access: yesAdvanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Transient Flows of Newtonian Fluid through a Rectangular Microchannel with Slip Boundary

open access: yesAbstract and Applied Analysis, 2014
We study the transient flow of a Newtonian fluid in rectangular microchannels taking into account boundary slip. An exact solution is derived by using the separation of variables in space and Fourier series expansion in time.
Benchawan Wiwatanapataphee   +2 more
doaj   +1 more source

MHD Casson fluid flow with Navier's and second order slip due to a perforated stretching or shrinking sheet.

open access: yesPLoS ONE, 2022
The present work discusses the laminar boundary layer flow of an electrically conducting Casson fluid due to a horizontal perforated sheet undergoing linear shrinking/stretching with mass transpiration.
Jitender Singh   +3 more
doaj   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

open access: yesAdvanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

The effect of slip distribution on flow past a circular cylinder

open access: yes, 2014
A slip boundary has been shown to have a significant impact on flow past bluff bodies. In this work and using a circular cylinder as a model system, the effects of various slip configurations on the passing flow are investigated.
Xia ZH   +9 more
core   +1 more source

On the modelling of isothermal gas flows at the microscale [PDF]

open access: yes, 2008
This paper makes two new propositions regarding the modelling of rarefied (non-equilibrium) isothermal gas flows at the microscale. The first is a new test case for benchmarking high-order, or extended, hydrodynamic models for these flows.
Reese, Jason M., Lockerby, Duncan A.
core   +1 more source

First-order analysis of slip flow for micro and nanoscale applications

open access: yesFlow
An existing approach for deriving analytical expressions for slip-flow properties of Stokes flow is generalised and applied to a range of micro and nanoscale applications.
Duncan A. Lockerby
doaj   +1 more source

Effect of patterned slip on micro- and nanofluidic flows [PDF]

open access: yesPhysical Review E, 2005
We consider the flow of a Newtonian fluid in a nano or microchannel with walls that have patterned variations in slip length. We formulate a set of equations to describe the effects on an incompressible Newtonian flow of small variations in slip, and solve these equations for slow flows.
Hendy, S. C., Jasperse, M., Burnell, J.
openaire   +3 more sources

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

open access: yesAdvanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich   +3 more
wiley   +1 more source

Numerical Analysis of a Journal Bearing with Chemical Roughness [PDF]

open access: yes, 2012
In this paper, performances of an oil-lubricated journal bearing are investigated with special attention paid to slip occurrence. The chemical roughness at which slip occurs is introduced.
M, Muchammad   +3 more
core  

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