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Vibration analysis of viscoelastic damping material attached to a cylindrical pipe by added mass and added damping

Journal of Sound and Vibration, 2019
Vibration of pipes and cylindrical shells leading to noise and damage is an important engineering problem in plant systems and air conditioners, among others. To attenuate such vibration, a viscoelastic material is attached to pipes as a damping material.
Satoshi Ishikawa
exaly   +2 more sources

Hyper-viscoelastic constitutive models for predicting the material behavior of polyurethane under varying strain rates and uniaxial tensile loading

, 2020
Non-linearity, loading rate, as well as temperature and pressure dependency present major challenges in the investigation of properties, particularly the mechanical properties of elastomeric polymers.
H. Somarathna   +4 more
semanticscholar   +1 more source

Shock Structure in Viscoelastic Materials

IMA Journal of Applied Mathematics, 1988
Summary: An analysis of steady, one-dimensional wave propagation in viscoelastic materials is carried out by using a model of material response that is general enough to incorporate the observed relaxation behaviour and nonlinearity of response of real materials, while simple enough to facilitate rigorous analytical proofs and numerical computations ...
Warhola, G. T., Pipkin, A. C.
openaire   +2 more sources

Viscoelastic materials in veterinary ophthalmology

Veterinary Ophthalmology, 1999
Viscoelastic materials have applications in both human and veterinary ophthalmology and orthopedics and for humans in otorhinolaryngology, urinary incontinence, cosmetic surgery and cosmetics. In ophthalmology, viscoelasties are most commonly used in facilitating cataract and other anterior segment surgeries, but also have applications in posterior ...
D.A., Wilkie, A.M., Willis
openaire   +2 more sources

Inflammatory Response to Viscoelastic Materials

Ophthalmic Surgery, Lasers and Imaging Retina, 1987
ABSTRACT Healon®, Amvisc®, or Viscoat® was injected into the corneal stroma of 36 normal rabbit eyes. Twelve additional rabbit eyes were used as controls by performing a sham procedure. Twelve rabbits were euthanized at one day and the remainder seven days after injection. The eyes were enucleated and examined by light microscopy.
S J, McKnight   +2 more
openaire   +2 more sources

A viscoelastic nonlinear compressible material model of lung parenchyma - Experiments and numerical identification.

Journal of The Mechanical Behavior of Biomedical Materials, 2019
Characterizing material properties of lung parenchyma is essential in order to describe and predict the mechanical behavior of the lung in health and disease. Hence, we aim to identify the viscoelastic constitutive behavior of viable lung parenchyma with
Anna M. Birzle, W. Wall
semanticscholar   +1 more source

An identification method for frequency dependent material properties of viscoelastic sandwich structures

Journal of Sound and Vibration, 2018
In this paper, an inverse identification method of the viscoelastic material properties (shear modulus G 0 and loss factor η C ) of a symmetric three layered viscoelastic sandwich beam is proposed.
K. S. Ledi   +3 more
semanticscholar   +1 more source

Attenuation Properties of Viscoelastic Material

pure and applied geophysics, 1989
The attenuation properties of eight Theological models have been studied theoretically. The expressions for Q have been obtained by using dissipated and stored energies and/or complex modulus for each model. The dependence of Q on frequency has been demonstrated.
openaire   +1 more source

Standard viscoelastic material

The Journal of the Acoustical Society of America, 1993
Whereas the moduli of elastic solids and the viscosities of simple molecular liquids are well-defined, such that many can be used as standards, the same is not true of viscoelastic materials. The properties of the latter are by definition both frequency and temperature dependent.
R. E. Wetton, J. C. Duncan, G. M. Foster
openaire   +1 more source

On ageing viscoelastic materials

Journal of the Mechanics and Physics of Solids, 1966
Abstract C onstitutive equations for ageing viscoelastic materials are formulated as differential equations with variable coefficients. Particular attention is devoted to the second order equation; the creep function is derived and asymptotic behaviour is studied. Comparison is made with commonly accepted expressions for creep functions of concrete.
J. Lubliner, J.L. Sackman
openaire   +1 more source

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