Results 141 to 150 of about 305,280 (307)

Influence of Geometric Design on Mechanical Performance of Auxetic Metastructure

open access: yesAdvanced Engineering Materials, EarlyView.
Strategic geometric reinforcement transforms auxetic performance. This study evaluates 3D‐printed arrowhead metastructures, revealing that a modified design with local ring reinforcement suppresses premature failure to achieve superior energy absorption and structural efficiency.
Muhammad Gulzari   +3 more
wiley   +1 more source

Analysis of Relevant Influence Factor of the High-speed Meshing Gear Body Temperature

open access: yesJixie chuandong, 2017
In order to analyze the influence of the related factors on the body temperature of high-speed gear in the meshing process,taking the standard involute gear as study object,based on the finite element analysis of temperature field and using the control ...
Wang Chunhua, Han Chong, An Da
doaj  

Experimental and Numerical Modal Analysis of Composite Sandwich Structures Using Surfboards as Model Systems

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents an experimental and numerical modal investigation of composite sandwich structures using surfboards as model systems. By comparing different core materials and reinforcement strategies, the study demonstrates how local stiffeners influence vibrational response and introduce characteristic modal features, highlighting modal ...
Brett Connellan   +4 more
wiley   +1 more source

Starspots as tracers of differential surface rotation. [PDF]

open access: yes, 2002
Differential rotation is a key ingredient in theories of stellar magnetic field generation. The solar surface differential rotation was initially discovered via the simple method of tracking the rotation rates of individual starspots at different ...
Cameron, Andrew Collier
core  

Mathematical model of the formation of cyclic and channel surfaces based on nonlinear rotation

open access: yesОмский научный вестник
This work is a continuation of the series of works by the authors devoted to the issues of shaping surfaces of nonlinear rotation. The geometric scheme for the formation of surfaces of this class includes: an axis of nonlinear rotation, which is a smooth,
K. L. Panchuk   +2 more
doaj   +1 more source

Triple Junctions as Dislocation‐Like Defects: The Role of Grain Boundary Crystallography Revealed by Experiment and Atomistic Simulation

open access: yesAdvanced Engineering Materials, EarlyView.
Grain boundary triple junctions are an essential ingredient of the microstructure of polycrystalline materials. In this study, a triple junction is observed using atomic‐resolution scanning transmission electron microscopy and characterized. Computer simulations reveal that the junction has a dislocation character that is determined by the joining ...
Tobias Brink   +4 more
wiley   +1 more source

The Solar Surface Differential Rotation from Disk-Integrated Chromospheric Fluxes [PDF]

open access: yes, 2007
Disk-integrated solar chromospheric Ca II K-line (3933.68 A) fluxes have been measured almost daily at Sacramento Peak Observatory since 1977. Using observing windows selected to mimic seasonal windows for chromospheric measurements of lower main ...
Steven L. Keil   +2 more
core  

Characterisation of starspot structure and differential rotation of Kepler-411

open access: yesAstronomy & Astrophysics
Context. Starspots and their movements on stellar surfaces enable the mechanisms of stellar magnetic activity to be investigated. Information on the spot distribution and differential rotation provide important constraints for the behaviour of stellar ...
Tuomi Mikko   +2 more
doaj   +1 more source

WHICH REFERENCE SURFACE? ROTATIONAL OR TRIAXIAL ELLIPSOID

open access: yesSGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings, 2011
15th International Multidisciplinary Scientific Geoconference (SGEM) -- JUN 18-24, 2015 -- Albena ...
openaire   +2 more sources

Advanced Electron Microscopy and Microcomputed Tomography Analysis of Single‐Crystal Ni‐Base Superalloys After Short‐Term Multiaxial Creep

open access: yesAdvanced Engineering Materials, EarlyView.
This work studies the anisotropic behavior of circular notched tensile specimens of Ni‐base superalloy single crystals during high‐temperature tensile creep along [001], [110], and [111]. Correlative scale‐bridging imaging of specimens reveals early rupture along [110] because 1) plastic deformation proceeds faster at notch center; 2) more (brittle ...
Leonardo Agudo Jácome   +6 more
wiley   +1 more source

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