Results 71 to 80 of about 1,749,278 (327)

Dynamic Precipitation during High‐Pressure Torsion of a Magnesium–Manganese Alloy

open access: yesAdvanced Engineering Materials, EarlyView.
An ultrafine‐grained alloy is produced by high‐pressure torsion of solutionized Mg–1.35 wt% Mn. Precipitation of nanometer‐scale Mn particles during deformation provides pinning sites. This prevents the formation of a bimodal grain structure and results in a finer grain size than for pure Mg.
Julian M. Rosalie, Anton Hohenwarter
wiley   +1 more source

FINITE ELEMENT MODELLING OF AN ULTRASONIC ROTARY MOTOR [PDF]

open access: yesFiabilitate şi Durabilitate, 2014
This paper tackles the use of ultrasonic motors with three degrees of freedom in view of various applications. In nanotechnology, due to their high precision values, fast speeds and response, the piezo positioning systems have become a key component in
OANA CHIVU, DAN DOBROTA, CLAUDIU BABIS
doaj  

Analysis of Very Fast Transients Using Black Box Macromodels in ATP-EMTP

open access: yesEnergies, 2020
Modelling for very fast transients (VFTs) requires good knowledge of the behaviour of gas insulated substation (GIS) components when subjected to high frequencies. Modelling usually takes the form of circuit-based insulation coordination type studies, in
Jonathan James   +4 more
doaj   +1 more source

A Computational Method for Acoustic Interaction with Large Complicated Underwater Structures Based on the Physical Mechanism of Structural Acoustics

open access: yesAdvances in Materials Science and Engineering, 2022
A numerical coupling approach is proposed to fast predict the acoustic radiation from a vibrating large-complicated underwater structure. In this study, the physical mechanism of sound radiation from underwater large target is used for the first time to ...
Yongzhuang Tang   +3 more
doaj   +1 more source

Validation of a wide plate finite element model using digital image correlation [PDF]

open access: yes, 2011
To investigate the influence of global plastic deformations on girth weld defect tolerance in pipelines, a parametric finite element model has been developed. This paper provides an experimental validation of the model.
De Keyser, Karel   +5 more
core   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

open access: yesAdvanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt   +8 more
wiley   +1 more source

Non-linear 3D finite element analysis of the anchorage zones of pretensioned concrete girders and experimental verification

open access: yes, 2018
This paper focuses on the modelling of the anchorage zone of a pretensioned girder. The finite element software Abaqus was used to create a 3D non-linear finite element model (FEM). This analysis was performed on a full-scale pretensioned girder with end
Boel, Veerle   +3 more
core   +1 more source

Understanding the Effect of Resistance Temperature Detector Temperature Controllers on Microstructural Alignment in Magnetic Freeze Casting

open access: yesAdvanced Engineering Materials, EarlyView.
The effect of temperature controllers that are commonly used in freeze‐casting is investigated in this work. Temperature controllers are observed to generate a voltage in the slurry. Microstructural alignment and ultimate compressive strength data show this voltage to interfere with the ability to align the microstructure using magnetic fields ...
Maddie A. Schmitz, Steven E. Naleway
wiley   +1 more source

Use of component method in the analysis of timber-steel connections

open access: yesGrađevinar, 2015
The use of component method for determining the moment resistance of an innovative beam-to-beam timber-steel connection is presented in the paper. The calculation of resistance of steel components is conducted based on EN 1993-1-8.
Alfonsas Daniūnas, Tomas Gečys
doaj   +1 more source

Modeling material failure with a vectorized routine [PDF]

open access: yes, 1984
The computational aspects of modelling material failure in structural wood members are presented with particular reference to vector processing aspects.
Cramer, S. M., Goodman, J. R.
core   +1 more source

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