Results 21 to 30 of about 2,146,941 (285)

Rheological Properties of Cement Mortar with Fly Ash and Silica Fume for 3D Printing [PDF]

open access: yesEPJ Web of Conferences
This study examines the rheological behavior of cement-based mortar mixes designed for 3D printing by varying fly ash (FA) and silica fume (SF) contents and testing at different resting times.
Alhanafy Israa   +4 more
doaj   +1 more source

A curve shortening flow rule for closed embedded plane curves with a prescribed rate of change in enclosed area [PDF]

open access: yes, 2015
Motivated by a problem from fluid mechanics, we consider a generalization of the standard curve shortening flow problem for a closed embedded plane curve such that the area enclosed by the curve is forced to decrease at a prescribed rate.
Dallaston, MC, McCue, SW
core   +2 more sources

A Traction (Friction) Curve Is Not a Flow Curve

open access: yesLubricants, 2022
With the uncertainty regarding the global energy future, the ability to lubricate concentrated contacts with sufficiently thick liquid films while minimizing friction is of extreme importance.
Scott Bair
doaj   +1 more source

The Back Extrusion Test as a Technique for Determining the Rheological and Tribological Behaviour of Yield Stress Fluids at Low Shear Rates

open access: yesApplied Rheology, 2011
A new method is developed to determine the rheological and tribological behaviour of viscoplastic fluids using a back extrusion test. In back extrusion geometry, the material is forced to flow in the gap between the inner and the outer cylinder.
Perrot Arnaud   +4 more
doaj   +1 more source

Design of a specific MATLAB code for processing of standard tensile test data for sheet metal forming simulations

open access: yesHittite Journal of Science and Engineering, 2015
In order to obtain proper and sufficiently precise results from metal forming simulations, accurate material data should be input to the simulation software.
Barış Çetin   +2 more
doaj   +1 more source

Dispersive geometric curve flows [PDF]

open access: yesSurveys in Differential Geometry, 2014
The Hodge star mean curvature flow on a 3-dimension Riemannian or pseudo-Riemannian manifold, the geometric Airy flow on a Riemannian manifold, the Schrodingier flow on Hermitian manifolds, and the shape operator curve flow on submanifolds are natural non-linear dispersive curve flows in geometric analysis.
openaire   +2 more sources

Constitutive Analysis of the Anisotropic Flow Behavior of Commercially Pure Titanium

open access: yesApplied Sciences, 2020
Plastic anisotropy is an important issue for metals possessing a hexagonal close-packed structure. This study investigated the anisotropic deformation characteristics of commercially pure titanium with basal texture.
Daehwan Kim, Taekyung Lee, Chong Soo Lee
doaj   +1 more source

Flow-volume curve analysis for predicting recurrence after endoscopic dilation of airway stenosis [PDF]

open access: yes, 2019
The flow-volume curve is a simple test for diagnosing upper airway obstruction. We evaluated its use to predict recurrence in patients undergoing endoscopic dilation for treatment of benign upper airway ...
Andreetti, Claudio   +11 more
core   +1 more source

FepiM: A Novel Inverse Piecewise Method to Determine Isothermal Flow Curves for Hot Working

open access: yesMetals, 2021
In forming simulations, flow curves are cardinal inputs to predict features, such as forming forces and material flow. The laboratory-scale experiments to determine them, like compression or tensile tests, are affected by deformation heating, restricting
Aditya Vuppala   +3 more
doaj   +1 more source

Ductile Compressive Behavior of Biomedical Alloys

open access: yesMetals, 2019
The mechanical properties of ductile metals are generally assessed by means of tensile testing. Compression testing of metal alloys is usually only applied for brittle materials, or if the available specimen size is limited (e.g., in micro indentation ...
Christian Affolter   +4 more
doaj   +1 more source

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