Results 61 to 70 of about 427,457 (296)

Titania-doped tantala/silica coatings for gravitational-wave detection [PDF]

open access: yes, 2006
Reducing thermal noise from optical coatings is crucial to reaching the required sensitivity in next generation interferometric gravitational-wave detectors.
Abernathy, Matthew R.   +25 more
core   +2 more sources

Internal Friction in Solids II. General Theory of Thermoelastic Internal Friction [PDF]

open access: yesPhysical Review, 1938
Stress inhomogeneities in a vibrating body give rise to fluctuations in temperature, and hence to local heat currents. These heat currents increase the entropy of the vibrating solid, and hence are a source of internal friction. The general theory of this internal friction is here developed.
openaire   +2 more sources

Characterization of Nitinol Produced by Laser Powder Bed Fusion for Mechanical Metamaterial Applications

open access: yesAdvanced Engineering Materials, EarlyView.
Stabilization of L‐PBF Ni50.7Ti49.3 under low‐cycle loading was investigated. Recoverable strain after cycling was dependent on the amount of applied load. Recovery ratio was 53.4% and 35.1% at intermediate and high load, respectively. The maximum total strain reached 10.3% at a high load of 1200 MPa.
Ondřej Červinek   +5 more
wiley   +1 more source

Effect of Oxygen Content on Surface and Subsurface Integrity During Turning of Ti–6Al–4V

open access: yesAdvanced Engineering Materials, EarlyView.
This study examines how oxygen content in the ambient atmosphere affects the surface and subsurface properties of Ti–6Al–4V during turning. Results show that oxygen does not influence surface roughness. However, machining in an extremely high vacuum‐adequate atmosphere increases surface hardness by up to 7.8% and induces compressive residual stresses ...
Benjamin Bergmann   +3 more
wiley   +1 more source

EXPERIMENTAL IDENTIFICATION OF THE MEASURE OF INTERNAL FRICTION IN PLATES WITH A TWO-DIMENSIONAL AUXETIC STRUCTURE

open access: yesInternational Journal for Computational Civil and Structural Engineering
The analysis of relaxation processes occurring in metals, alloys and composites is an important problem of modern materials science. This paper presents the results of experiments to determine the measure of internal friction by impulse excitation ...
Marina Shitikova   +2 more
doaj   +1 more source

Modeling and estimation of internal friction in cloth [PDF]

open access: yes, 2013
Force-deformation measurements of cloth exhibit significant hysteresis, and many researchers have identified internal friction as the source of this effect. However, it has not been incorporated into computer animation models of cloth.
Bickel, Bernd   +8 more
core   +1 more source

Assessing Altered Coating Adhesion on Plasma‐Deoxidized Surfaces Under Oxygen‐Free Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates the effectiveness of atmospheric pressure plasma pretreatment in modifying silicon and stainless steel surfaces to improve adhesion. Argon‐hydrogen plasma increases surface roughness and improves adhesion strength, whereas pure argon results in smoother surfaces and structural changes.
Selina Raumel   +6 more
wiley   +1 more source

Analiza Drgań Samowzbudnych Wirnika o Dwóch Stopniach Swobody

open access: yesEngineering Transactions, 1973
In the paper stationary, self-excited vibrations of rotor with two degrees of freedom, excited by the action of internal friction within the material of the rotor are analyzed. The characteristics of elasticity and internal friction are assumed to be non-
A. Muszyńska
doaj  

Professor Robert Schaller: Zener Medalist

open access: yesArchives of Metallurgy and Materials, 2016
The following is the text of an oral presentation delivered at the Zener Medal Award ceremony in Hefei on 23 September 2015.
Mari D.
doaj   +1 more source

Locomotive and reptation motion induced by internal force and friction

open access: yes, 2011
We propose a simple mechanical model of locomotion induced by internal force and friction. We first construct a system of two elements as an analog of the bipedal motion.
Hidetsugu Sakaguchi   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy