Results 21 to 30 of about 8,589,378 (319)

Nonlinear vibrations of fluid transporting pipelines on a viscoelastic foundation

open access: yesИнженерно-строительный журнал, 2019
The article presents the results of a study of vibration process in pipelines conveying fluid or gas. A mathematical model pipeline was used in the form of cylindrical shell and a viscoelastic foundation in the form of two-parameter model of the ...
Bakhtiyar Khudayarov, Fozil Turaev
doaj   +1 more source

Resonant Microcantilevers for the Determination of the Loss Modulus of Thin Polymer Films [PDF]

open access: yes, 2011
The increasing interest in polymer materials creates the need for accurate tools to characterize their mechanical properties. Due to energy dissipation in polymers during deformation, these materials exhibit viscoelastic behavior.
Ayela, Cedric   +3 more
core   +4 more sources

Experimental Study on Mechanical Properties of Small Size Viscoelastic Damper [PDF]

open access: yesE3S Web of Conferences, 2021
Long span roofs are very likely to oscillate when subjected to wind load that can lead to structure fatigue and endanger structures safety. Dampers have been used for long time to dissipate wind and earthquake induced energy in structures.
Han Miao   +2 more
doaj   +1 more source

The measurement of dilational properties of liquid surfaces [PDF]

open access: yes, 1983
For measurements of viscoelastic properties of monolayer covered interfaces, the longitudinal wave technique is used. The longitudinal wave is generated in the plane of the interface, using a horizontal oscillating barrier.
Houkes, Z.   +3 more
core   +7 more sources

Enhancing the Viscoelastic Performance of Carbon Fiber Composites by Incorporating CNTs and ZnO Nanofillers

open access: yesApplied Sciences, 2019
Carbon fiber reinforced plastic composites (CFRPs) possess superior elastic mechanical properties. However, CFRPs lack sufficient viscoelastic performance, such as damping and creep resistance.
Suma Ayyagari, Marwan Al-Haik
doaj   +1 more source

Rheology at the micro-scale: new tools for bio-analysis [PDF]

open access: yes, 2013
We present a simple and non-invasive experimental procedure to measure the linear viscoelastic properties of cells by passive particle tracking microrheology.
Carlsson, A.   +6 more
core   +1 more source

Viscoelastic modeling of the stress relaxation behavior for the bionic extracellular matrix polymer scaffold

open access: yesMedicine in Novel Technology and Devices, 2022
Viscoelasticity of the extracellular matrix (ECM) plays a critical part in controlling cell behavior. However, the structure-related viscoelasticity of the synthetic ECM and its mechanism are rarely reported.
Yanqin Wang   +3 more
doaj   +1 more source

Local viscoelasticity of living cells measured by rotational magnetic spectroscopy

open access: yesNature Communications, 2016
Cells are recognized as having viscoelastic properties, but whether the cytoplasm resembles a viscoelastic liquid or an elastic gel is still debated.
J.-F. Berret
doaj   +1 more source

Determination of macroscopic viscoelastic properties as well as macroscopic thermal deformation and cure-shrinkage properties of fiber reinforced plastics in consideration of cure process

open access: yesNihon Kikai Gakkai ronbunshu, 2019
This study presents a method of determining the macroscopic viscoelastic properties as well as the macroscopic coefficients of thermal expansion and cure-shrinkage of fiber-reinforced plastics (FRP) in consideration of the dependence of the viscoelastic ...
Risa SAITO   +5 more
doaj   +1 more source

Stress intensity factor for a small radial crack located on external edge of a rotating viscoelastic cylinder subjected to internal pressure and temperature distribution [PDF]

open access: yesمهندسی مکانیک شریف, 2021
In this research, stress intensity factor of a small radial crack in a rotating thick cylinder made of viscoelastic materials subjected to internal pressure and radial temperature distribution is investigated. The radial crack is assumed to be located at
R. Nikpour, H. Mahbadi
doaj   +1 more source

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