Results 151 to 160 of about 13,293,543 (349)

Investigation and modelling of rubber friction [PDF]

open access: yes, 2010
PhDThe friction between a rubber surface in contact with a rigid surface is still not fully understood. Unlike other materials, friction behaviour in rubber is significantly dependent upon a variety of parameters due to its viscoelastic nature. The aim
Gabriel, Philip
core  

Field Report from Collaborative Research Center 1625: Heterogeneous Research Data Management Using Ontology Representations

open access: yesAdvanced Engineering Materials, EarlyView.
A unified research data management framework for heterogeneous materials data is presented. The system integrates multimodal datasets using ontologies and knowledge graphs, enabling interoperability and FAIR (findable, accessible, interoperable, reusable) data principles. By linking data across scales and workflows, it supports reproducible, Artifitial
Doaa Mohamed   +6 more
wiley   +1 more source

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

Optimization of Wear Parameters in AISI 4340 Steel

open access: yesAl-Khawarizmi Engineering Journal, 2014
This study investigated the optimization of wear behavior of AISI 4340 steel based on the Taguchi method under various testing conditions. In this paper, a neural network and the Taguchi design method have been implemented for minimizing the wear rate in
Abbas Khammas Hussein
doaj  

Slip Localization Intensification Mediated by Grain Boundary Sliding in a Polycrystalline Nickel‐Based Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
The temperature dependence of fatigue behavior in nickel‐based superalloys is investigated through high‐resolution measurements of plastic localization. While increasing temperature reduces localization and enhances fatigue performance in René 88DT, Inconel 718 exhibits a sharp degradation at intermediate temperature due to intensified slip ...
M. Calvat   +5 more
wiley   +1 more source

TORQUE RIPPLE RATE REDUCTION OF 6/4 SWITCHED RELUCTANCE MOTOR USING SLIDING MODE LEARNING CONTROLS [PDF]

open access: yes
This paper presents a sliding mode control for reducing the torque ripple of a 6/4 switched reluctance motor. Several types of sliding mode control based on the current variable are implemented: conventional sliding mode control, learning sliding mode ...
Zahraa Razaq Mohammed   +1 more
core   +1 more source

Optimization of Wear Parameters in AISI 4340 Steel

open access: yesAl-Khawarizmi Engineering Journal, 2017
This study investigated the optimization of wear behavior of AISI 4340 steel based on the Taguchi method under various testing conditions. In this paper, a neural network and the Taguchi design method have been implemented for minimizing the wear rate in
Abbas Khammas Hussein
doaj  

THE INFLUENCE OF SINTERING TEMPERATURE, SLIDING SPEED, AND SLIDING TIME ON THE WEAR RATE OF YTTRIUM-TETRAGONAL ZIRCONIA POLYCRYSTALS (3Y-TZP) FOR DENTAL APPLICATION

open access: yesMağallaẗ Al-kūfaẗ Al-handasiyyaẗ
In this thesis, the samples of dental zirconia were sintered to various temperatures (1250,1350, and 1450) °C, and subjected to friction between them in saliva at two different sliding speeds (200 and 400 revolutions per minute) and in various periods ...
Karrar A. Mzedawee, Iman J. Abed
doaj   +1 more source

Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
A 27.3Ta‐27.3Mo‐27.3Ti‐8Cr‐10Al (at.%) refractory high‐entropy alloy with precipitation‐strengthened A2‐B2 microstructure was studied by creep tests at 1030°C, which demonstrate a transition in deformation mechanisms in the range of 100–150 MPa applied stress. This is associated with changes in dislocation–precipitate interactions. Relevant deformation
Liu Yang   +10 more
wiley   +1 more source

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