Results 21 to 30 of about 246,882 (302)

Elastic Modulus of Polypyrrole Nanotubes

open access: yesPhysical Review Letters, 2000
The first measurements of the tensile elastic modulus of polypyrrole nanotubes are presented. The nanotubes were mechanically tested in three points bending using atomic force microscopy. The elastic tensile modulus was deduced from force-curve measurements on different nanotubes with outer diameter ranging between 35 and 160 nm.
Cuenot, Stéphane   +2 more
openaire   +3 more sources

The Physical Characteristics of Nanofiller and Interfacial Regions in Nanocomposites with Polymer/Carbon Nanotubes and Elastomeric Vitreous Matrix

open access: yesКонденсированные среды и межфазные границы, 2019
Purpose. The purpose of this study is to separately defi ne the elasticity modulus of nanocomposites with polydicyclopentadiene/multilayer carbon nanotubes, specifi cally, of the nanofi ller and interfacial regions.
Luiza В. Atlukhanova   +2 more
doaj   +1 more source

Elastic modulus of viral nanotubes

open access: yesPhysical Review E, 2008
We report an experimental and theoretical study of the radial elasticity of tobacco mosaic virus (TMV) nanotubes. An atomic force microscope tip is used to apply small radial indentations to deform TMV nanotubes. The initial elastic response of TMV nanotubes can be described by finite-element analysis in 5nm indentation depths and Hertz theory in 1.5nm
Zhao, Yue, Ge, Zhibin, Fang, Jiyu
openaire   +4 more sources

Foam pads properties and their effects on posturography in participants of different weight [PDF]

open access: yes, 2015
Background: Foam pads are increasingly used on force platforms during balance assessments in order to produce increased instability thereby permitting the measurement of enhanced posturographic parameters.
Fagan, Michael, Gosselin, Guy
core   +2 more sources

modulus of elasticity

open access: yes, 2014
Citation: 'modulus of elasticity' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.M03966 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
  +4 more sources

Evaluation of Modulus of Elasticity in Standing Trees and Sawn Wood in Populous deltoids using Nondestructive Stress Wave Testing [PDF]

open access: yesIranian Journal of Wood and Paper Industries, 2014
The aim of this paper was to evaluate relationship between dynamic modulus of elasticity (MOEd) in healthy standing trees of Populus deltoides and static modulus of elasticity (MOEs) of sawn lumber from the same standing trees, using nondestructive ...
Mehrab Madhoushi, Soheila Daneshvar
doaj  

A Study on Correlation between Ultrasonic Pulse Velocity Method and Coarse Aggregate for Estimating Residual Modulus of Elasticity of Concrete Exposed to High Temperatures

open access: yesApplied Sciences, 2022
In this study, the mechanical properties of normal concrete (NC) and lightweight concrete (LC) were measured upon exposure to high temperatures (20, 100, 200, 300, 500, and 700 °C).
Wonchang Kim   +3 more
doaj   +1 more source

Elastic bending modulus of monolayer graphene [PDF]

open access: yesJournal of Physics D: Applied Physics, 2009
A new formula for elastic bending modulus of monolayer graphene is derived analytically from an empirical potential for solid-state carbon-carbon bonds. Two physical origins are identified for the non-vanishing bending modulus of the atomically thin graphene sheet, one due to the bond angle effect and the other resulting from the bond order term ...
Lu, Q, Arroyo Balaguer, Marino, Huang, R
openaire   +5 more sources

Determination of Physical and Mechanical Properties of Waste Paper Boards Supported by Wood Chips and Chopped E-glass Fiber

open access: yesDrvna Industrija, 2022
Today, legal regulations, along with social awareness, have made waste management a necessity. Depending on the type of waste, technological developments have enabled an increase in the number of approaches, e.g., reusing, recycling, and manufacturing of
Eser Sözen
doaj   +1 more source

Estimation of the static modulus of elasticity of wood from the dynamic modulus of elasticity

open access: yesForest Systems
Aim of study: Analyze the behavior and predictive capacity of different non-destructive testing (NDT) methods—ultrasound, longitudinal and transverse vibrations, and static bending— for estimating the MOEGTO in two species of great forestry interest in ...
Xuxan Rosas-Ramos   +6 more
doaj   +1 more source

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