Results 11 to 20 of about 31,845 (302)

Dynamic nanoindentation testing: is there an influence on a material’s hardness?

open access: yesMaterials Research Letters, 2017
Modern nanoindentation devices are capable of dynamic experimentations, which allow us to exploit instrumented hardness tests extensively. Beside the assets of recording mechanical properties continuously over displacement, there are ongoing debates ...
A. Leitner, V. Maier-Kiener, D. Kiener
doaj   +2 more sources

Static and Dynamic Tensile Mechanical Behavior of Polyvinyl Chloride Elastomers with Different Shore Hardness

open access: yesShock and Vibration, 2021
An experiment on the static and dynamic tensile mechanical properties of polyvinyl chloride (PVC) elastomers is conducted using an Instron-5943 universal testing machine and an improved Split Hopkinson Tensile Bar to study the dynamic tensile mechanical ...
Jingfa Lei   +5 more
doaj   +2 more sources

To the Problem of Hardness Coating Determination with the Help of Dynamic Indentation Method

open access: yesНаука и техника, 2003
Theoretical evaluation of a scale factor influence on thermal (depending on deformation rate) and athermanous (quasi-static) hardness components in dynamic indentation has been made.
V. A. Roudnitsky, V. V. Minchenya
doaj   +2 more sources

Determination of the dynamic hardness of greases as a characteristic of deformation properties in a tribocontact

open access: yesПроблеми трибології, 2022
The efficiency of plastic oil is determined by the duration of its retention on the surface. Evaluation of the effectiveness of plastic lubricants depends on their mechanical properties.
O. Dykha   +3 more
doaj   +1 more source

Hard-Sphere-like Dynamics in a Non-Hard-Sphere Liquid [PDF]

open access: yesPhysical Review Letters, 2005
The collective dynamics of liquid Gallium close to the melting point has been studied using Inelastic X-ray Scattering to probe lengthscales smaller than the size of the first coordination shell. %(momentum transfers, $Q$, $>$15 nm$^{-1}$). Although the structural properties of this partially covalent liquid strongly deviate from a simple hard ...
SCOPIGNO, TULLIO   +5 more
openaire   +5 more sources

Escape dynamics of many hard disks [PDF]

open access: yesPhysical Review E, 2014
Many-particle effects in escapes of hard disks from a square box via a hole are discussed in a viewpoint of dynamical systems. Starting from $N$ disks in the box at the initial time, we calculate the probability $P_{n}(t)$ for at least $n$ disks to remain inside the box at time $t$ for $n=1,2,\cdots,N$. At early times the probabilities $P_{n}(t)$, $n=2,
Taniguchi, Tooru   +2 more
openaire   +3 more sources

Hard diffraction with dynamic gap survival [PDF]

open access: yesJournal of High Energy Physics, 2016
30 pages, 13 figures.
Rasmussen, Christine O.   +1 more
openaire   +3 more sources

Research and Development of Metrological Assurance Elements for Leeb Hardness Measurements

open access: yesInventions, 2021
This article is devoted to contemporary topics of ensuring the uniformity of Leeb hardness measurements. The analysis of the physical principles of the Leeb hardness test is carried out, and the influence of the measuring transducer parameters on the ...
Vladimir Syasko, Artem Nikazov
doaj   +1 more source

Dynamics of a Hard Sphere Granular Impurity [PDF]

open access: yesPhysical Review Letters, 2006
v3: Minor changes; to be published in ...
Santos, A., Dufty, J. W.
openaire   +3 more sources

Hardness identification of rock based on multi-sensor information fusion during the process of roadway tunnelling [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2020
In this paper, a new dynamic model was proposed for identifying the rock hardness during the process of roadway tunnelling, thereby regulating the speed of the driving motor and the torque of the cutting head.
H. Wang, S. Lu, M. Huang, X. Zhao
doaj   +1 more source

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