Results 1 to 10 of about 48,963 (173)

Thermodynamic Restrictions in Linear Viscoelasticity. [PDF]

open access: yesMaterials (Basel), 2022
The thermodynamic consistency of linear viscoelastic models is investigated. First, the classical Boltzmann law of stress–strain is considered. The kernel (Boltzmann function) is shown to be consistent only if the half-range sine transform is negative definite. The existence of free-energy functionals is shown to place further restrictions.
Morro A.
europepmc   +3 more sources

Effect of filler type on non-linear viscoelastic characteristics of asphalt mastic [PDF]

open access: yesArchives of Civil Engineering, 2021
This article discusses the rheological tests and analyses based on the Schapery non-linear viscoelasticity model that were performed to study asphalt mastic behaviour under high shear stresses.
Grzegorz Mazurek
doaj   +1 more source

Dynamic displacement tracking in viscoelastic solids by actuation stresses: a one-dimensional analytic example involving shock waves [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2023
A one-dimensional (1D) analytic example for dynamic displacement tracking in linear viscoelastic solids is presented. Displacement tracking is achieved by actuation stresses that are produced by eigenstrains. Our 1D example deals with a viscoelastic half-
Hans Irschik, Michael Krommer
doaj   +1 more source

Human cornea thermo-viscoelastic behavior modelling using standard linear solid model

open access: yesBMC Ophthalmology, 2023
Background Corneal biomechanics is of great interest to researchers recently. Clinical findings relate them to corneal diseases and to outcomes of refractive surgery.
Hassan M. Ahmed   +2 more
doaj   +1 more source

Experimental Investigation and Prediction for Bending Creep of Glass Fiber-Reinforced Polymer Pultruded Tube

open access: yesBuildings, 2023
This study experimentally investigates the bending creep behavior of a pultruded tube made of glass fiber-reinforced polymer (GFRP) and provides the corresponding fitting model as well as the life prediction equation.
Kaige Cheng   +4 more
doaj   +1 more source

Measurement of Dynamic Viscoelasticity of Full-Size Wood Composite Panels Using a Vibration Testing Method

open access: yesBioResources, 2016
The dynamic viscoelasticity of full-size wood composite panels (WCPs) under the free-free vibrational state were determined by a vibration testing method.
Cheng Guan   +4 more
doaj   +1 more source

A New Approach to Equations with Memory [PDF]

open access: yes, 2009
In this work, we present a novel approach to the mathematical analysis of equations with memory based on the notion of a state, namely, the initial configuration of the system which can be unambiguously determined by the knowledge of the future dynamics.
Fabrizio, M., Giorgi, C., Pata, V.
core   +3 more sources

Integral equations of a cohesive zone model for history-dependent materials and their numerical solution [PDF]

open access: yes, 2014
A nonlinear history-dependent cohesive zone (CZ) model of quasi-static crack propagation in linear elastic and viscoelastic materials is presented. The viscoelasticity is described by a linear Volterra integral operator in time.
Atkinson   +12 more
core   +2 more sources

Blood Viscoelasticity Measurement Using Interface Variations in Coflowing Streams under Pulsatile Blood Flows

open access: yesMicromachines, 2020
Blood flows in microcirculation are determined by the mechanical properties of blood samples, which have been used to screen the status or progress of diseases.
Yang Jun Kang
doaj   +1 more source

Poisson's Ratio as a Function of Time in Composite Material of Viscoelastic Behavior by Depending on Creep Test [PDF]

open access: yesEngineering and Technology Journal, 2011
In viscoelastic behavior of composite material, such as those made of thermo-set polyester and one layer random fiber glass, the Poisson’s ratio is described in new function of time and stress. The relaxation stress is obtained experimentally to describe
Azhar Sabah Ameed
doaj   +1 more source

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