Results 21 to 30 of about 158,433 (303)

Rheological model for viscous flow densification during supersolidus liquid phase sintering [PDF]

open access: yesScience of Sintering, 2006
A model is derived for the viscous flow densification of prealloyed powders heated to just over the solidus temperature, a process termed supersolidus liquid phase sintering.
German R.M.
doaj   +1 more source

Mathematical Model for Establishing the Time-Dependent Behavior of Rocks by the Gradient Method

open access: yesApplied Sciences, 2022
In the underground activity domain, most problems related to mining pressure and mining stability need to be solved by taking into account the time behavior of rocks through an approach of the interaction amidst the rock massif, support system, time ...
Mihaela Toderas
doaj   +1 more source

The analytical dependence of the resistance force to digging with a bulldozer blade on the main influencing factors [PDF]

open access: yesE3S Web of Conferences, 2023
The criteria for the similarity of the process of digging soil with a bulldozer blade are determined based on the use of the principles of the theory of similarity and modeling. When determining the similarity criteria, a rheological model of the process
Khankelov T.K.   +2 more
doaj   +1 more source

Study of bearing capacity of vibratory pile applying acceleration record

open access: yesJournal of Civil Engineering and Management, 2014
The article focuses on the method for evaluation of ultimate bearing capacity for a vibratory pile having acceleration data recorded during the tests. The simulation vibratory pile installation test was performed in the testing stand.
Kęstutis Kelevišius   +4 more
doaj   +1 more source

Rheological Behavior of Rockmass Supported with Rockbolts Based on Viscoelastic Analysis Method

open access: yesMathematics, 2018
In this paper, we present the viscoelastic solutions for rockmass supported with discretely mechanically or frictionally coupled (DMFC) rockbolts to reveal the coupling rheological mechanisms.
Gang Wang   +4 more
doaj   +1 more source

Vom Berg and Hahn–Eyring Drilling Fluid Rheological Models

open access: yesEnergies, 2022
This article presents rheological models of fluids used in the drilling practice. It discusses the principles of determining drilling fluid rheological parameters based on data acquired from measurements by means of viscometers used in the drilling ...
Rafał Wiśniowski   +2 more
doaj   +1 more source

A new ANN rheological model of a comply polymer in temperature spectrum [PDF]

open access: yesArchives of Civil Engineering, 2023
The article presents modelling using artificial neural networks (ANN) of the phenomenon of creep of comply polymer SIKA PS which can be used in various applications in civil engineering. Data for modelling was gathered in compressive experiments conveyed
Anna M. Stręk
doaj   +1 more source

Analysis of Rheological Models of Selected Cement Slurries [PDF]

open access: yesActa Montanistica Slovaca, 2004
Cement slurries become more and more widely applicable in reinforcing and strengthening the rock mass. The processes taking place in fresh cement slurries were presented and their complex character analysed. The equations describing rheological models, e.
Stryczek Stanislaw   +2 more
doaj  

MODELING OF THE PROCESS OF CUTTING MINERAL GROUNDS BY PASSIVE WORKING DRAWNER DURING THE CONSTRUCTION OF CLOSED DRAINAGE

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2019
Objectives. The article describes an electronic model of the soil to study its rheological properties and study the process of cutting passive working bodies (knives) of mineral soils with trench-less method of building a closed drainage.Method.
E. Z. Batmanov   +2 more
doaj   +1 more source

Influence of Phosphorus on the Fluid Variability Characteristics of Sediment-laden Flow

open access: yesShuitu Baochi Xuebao
[Objective] This study aims to explore the effect of phosphorus on the fluid variability characteristics of sediment-laden flows. [Methods] A self-made double vertical tube rheometer was used to study the influence of phosphorus on fluid types ...
ZHANG Yuanyuan   +5 more
doaj   +1 more source

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