Results 91 to 100 of about 4,483 (226)

Study on the Bearing Capacity of Deep Circular Foundation Considering the Axisymmetric Compaction Deformation of Sand Ground

工程科学与技术, 2017
:Due to the effects of foundation embedded depth and characteristic of axisymmetric deformation of sand have not been considered simultaneously on the failure mechanism,the Berezantzev's theory for predicting the bearing capacity of a deep circular ...
LIU Guanfei, LEI Shengyou
doaj  

Vibrational Transportation of Deformable Axisymmetric Particles

A particle on a substrate supporting a surface acoustic wave can experience horizontal drift excited by the dry friction force. The effect is referred to as vibrational transportation, or as a surface acoustic wave motor. A traditional theory of vibrational transportation considers a particle as a material point moving on a rigid substrate.
Terzi, Marina E., Aleshin, Vladislav V., Ghesqui`ere, Jules, Tournat, Vincent   +3 more
openaire   +2 more sources

Agglomeration Behavior of Nonmetallic Particles on the Surface of Si‐Killed Liquid Steel Using HT‐CSLM: An In Situ Investigation

steel research international, EarlyView.
The in situ agglomeration behavior of semisolid Al–silicate inclusions in Si‐killed steel is studied using high‐temperature confocal scanning laser microscopy. Particle motion and interparticle forces at the steel/argon interface are quantified and compared with a modified capillary interaction model.
Suwam Kumar, Muhammad Nabeel, Angshuman Podder, Andre B. Phillion, Neslihan Dogan   +4 more
wiley   +1 more source

Influence of Excavation Radius on Behavior of Circular Foundation Pits Supported by Prefabricated Recyclable Structures: Full-Scale Experimental and Numerical Analysis

Buildings
A foundation pit’s excavation area, which is determined by its radius in a circular foundation pit, exerts a considerable influence on the pit’s behavior.
Lichao Chen, Chengchao Guo, Yanhui Pan, Huqing Liang, Mengxiong Tang, Kejie Zhai   +5 more
doaj   +1 more source

Damage Investigation of the Preform Operations for the Production of Rings for Ring Rolling

steel research international, EarlyView.
Void evolution during the preforming operations of two industrial ring rolling process routes is investigated by combining metallographic characterization with a two‐scale finite element simulation approach. The results reveal that, despite differing initial void conditions, the preforming operations can be designed to effectively influence void ...
Laurenz Kluge, Johannes Weninger, André Hundertmark, Bastian Kettler, Heiko Manz, David Bailly, Junhe Lian   +6 more
wiley   +1 more source

Finite Plastic Deformations of Orthotropic Circular Plates Under Gaussian Impulse

Engineering Transactions, 1978
The permanent deflection of an orthotropic circular plate subjected to impulse loading is presented. The impulse is assumed to impart a transverse axisymmetric velocity having spatially a general Gaussian distribution.
S. Anantha Ramu, K. Janardhana Iyengar
doaj  

A Dual‐Frequency Sensitivity Model for Optical Fibre Ultrasonic Sensors in Power Transformer Partial Discharge Detection

High Voltage, EarlyView.
ABSTRACT The detection of partial discharges (PD) on the power transformer tank demands higher sensitivity in ultrasonic detection. To target the detection frequency band for sensor optimisation and enhance sensitivity, this paper presents a dual‐frequency sensitivity model for optical fibre ultrasonic sensors.
Sihan Wang, Jihang Sun, Jialin Wang, Bin Wei, Guoming Ma   +4 more
wiley   +1 more source

A Thermal‐Dependent Conductivity Coating for Surface Charge and Electric Field Mitigation Under Electrothermal Coupling Field

High Voltage, EarlyView.
ABSTRACT The problem of gas–solid interface charge accumulation is an important reason for distorting the surface electric field and then inducing surface discharge. The temperature gradient distribution formed on the spacer during the operation of a gas‐insulated transmission line (GIL) will aggravate the surface charge accumulation, further ...
Jianyi Xue, Bowen Xing, Weiming Wang, Jianzhao Sang, Ning Yang, Tao Wen, Lijian Ding   +6 more
wiley   +1 more source

In situ mapping of iron oxidation in laminar metal fuel flames using X‐ray absorption spectroscopy

Journal of Synchrotron Radiation, EarlyView.
For the first time an iron metal flame has been mapped by in situ X‐ray absorption spectroscopy. Strong gradients in oxidation state and phase composition across the metallic core and the flame front were found with FeO peaking at the visible flame front and Fe3O4 forming further beyond.Metal fuels such as iron are promising carbon‐free energy carriers
Lukas Braun, Fabian P. Hagen, Michal Fedoryk, Malte Seitz, Björn Stelzner, Dimosthenis Trimis, Jan-Dierk Grunwaldt, Dmitry E. Doronkin   +7 more
wiley   +1 more source

4D imaging of a porous carbonate rock under triaxial loading: quantitative correlation between local porosity and strain

Journal of Synchrotron Radiation, EarlyView.
A 4D X‐ray computed tomography experimental campaign was carried out on a porous carbonate rock to investigate the link between initial porosity and deformation modes. This paper presents the experiment and the methods used to explore this relationship.The study of the mechanical behaviour of carbonate rocks has benefited from the evolution of ...
Catherine Doré-Ossipyan, Adriana Quacquarelli, Michel Bornert, Jean Sulem, Alexandre Dimanov, Patrick Aimedieu, Vincent De Greef, Andrew King   +7 more
wiley   +1 more source