Results 11 to 20 of about 33,438 (296)

LOCAL SOLUTION A VISCOELASTIC NONLINEAR KIRCHHOFF'S SYSTEM WITH DISSIPATIVE TERM

open access: yesPesquimat, 2014
In present work, we study the existence and uniqueness of local solutions for the mixed problem relative to a system of viscoelastic nonlinear Kirchhoff's equation with dissipative term.
Teófanes Quispe Méndez   +1 more
doaj   +3 more sources

Calculation of Short-Term Creep of Concrete Using Fractional Viscoelastic Model

open access: yesMaterials, 2023
The study of short-term creep is essential for understanding the concrete creep process and deformation under alternating stress. Researchers are concentrating on the nano- and micron-scale creep of cement pastes. In the latest RILEM creep database, short-term concrete creep data at hourly or minutely levels are still rare and scarce.
Shengqi Mei   +3 more
openaire   +3 more sources

Stress concentration in nonlinear viscoelastic composites [PDF]

open access: yesMechanics and Advanced Technologies, 2017
A nonlinear viscoelastic problem of the mechanics of composites is solved within the framework of a second-order nonlinear theory. A viscoelastic functional is used to construct general defining relations.
B. Maslov
doaj   +2 more sources

Acute Effects of Different Muscle Contraction Types on Biomechanical and Viscoelastic Properties of the Biceps Brachii Measured with Myotonometry [PDF]

open access: yesJournal of Functional Morphology and Kinesiology
Background: Acute alterations in biomechanical and viscoelastic muscle properties provide important insight into early fatigue mechanisms; however, their dependence on specific muscle contraction types remains insufficiently understood.
Sebastian Szajkowski   +2 more
doaj   +2 more sources

Mathematical modeling of viscoelastic foam material for design of filtering respirators [PDF]

open access: yesE3S Web of Conferences, 2023
The work is devoted to the development of a mathematical model of the foam material of the filtering half mask. The analysis of the methods used to study the leveling of the negative effect of the compression pressure of the filtering half-mask on the ...
Tyurin Igor   +3 more
doaj   +1 more source

Response Analysis of Nonlinear Viscoelastic Energy Harvester with Bounded Noise Excitation

open access: yesMachines, 2022
Energy harvesting has become a popular topic in recent years. A number of studies have been conducted in the field of vibration energy harvesting system (VEHS).
Yuanhui Zeng   +3 more
doaj   +1 more source

Numerical simulation of single- and multi-step shear stress relaxations of isotropic magnetorheological elastomer using fractional derivative viscoelastic models

open access: yesArchives of Mechanics, 2022
The paper presents numerical simulations of single- and multi-step shear stress relaxations of isotropic magnetorheological elastomer (MRE) using fractional derivative Maxwell and Kelvin–Voigt viscoelastic models. The isotropic MRE has been fabricated by
T.H. Nam, I. Petríková, B. Marvalová
doaj   +1 more source

General decay rate for a viscoelastic wave equation with distributed delay and Balakrishnan-Taylor damping

open access: yesOpen Mathematics, 2021
A nonlinear viscoelastic wave equation with Balakrishnan-Taylor damping and distributed delay is studied. By the energy method we establish the general decay rate under suitable hypothesis.
Choucha Abdelbaki   +2 more
doaj   +1 more source

Stochastic Viscoelastic Wave Equations with Nonlinear Damping and Source Terms [PDF]

open access: yesJournal of Applied Mathematics, 2014
The goal of this paper is to study an initial boundary value problem of stochastic viscoelastic wave equation with nonlinear damping and source terms. Under certain conditions on the initial data: the relaxation function, the indices of nonlinear damping, and source terms and the random force, we prove the local existence and uniqueness of solution by ...
Shuilin Cheng, Yantao Guo, Yanbin Tang
openaire   +4 more sources

Long‐term ovariectomy decreases ovine compact bone viscoelasticity [PDF]

open access: yesJournal of Orthopaedic Research, 2005
AbstractChanges in bone mineral density associated with estrogen depletion in humans do not account for all of the associated change in fracture risk, and it is possible that some of this variation may lie in changes of other aspects of bone quality. The purpose of this study was to investigate changes in viscoelastic behavior of compact bone that may ...
C M, Les   +5 more
openaire   +2 more sources

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