نتایج جستجو برای: viscoelastic plate

تعداد نتایج: 86182  

2007
Natalya Kizilova

Biological materials change their mass, shape, and porosity during the growth and possess high strength and durability at general lightweight design. Biological tissues are considered to be inhomogeneous anisotropic multiphase composites reinforced by fibres. A 2D problem of the load transfer from the growing fibre into the growing plate with different own growth rates and viscosity is consider...

2009
Mohamed I. A. Othman

In this paper we introduced the normal mode analysis for two–dimensional problems of the generalized linear thermo–viscoelasticity with one relaxation time. The exact expressions for the temperature distribution, the displacement components and the stress are obtained. The resulting formulation is applied to three different concrete problems. The first deals with a thick plate subjected to a ti...

Journal: :Biophysical journal 1998
A R Bausch F Ziemann A A Boulbitch K Jacobson E Sackmann

A magnetic bead microrheometer has been designed which allows the generation of forces up to 10(4) pN on 4.5 micron paramagnetic beads. It is applied to measure local viscoelastic properties of the surface of adhering fibroblasts. Creep response and relaxation curves evoked by tangential force pulses of 500-2500 pN (and approximately 1 s duration) on the magnetic beads fixed to the integrin rec...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علم و فرهنگ - دانشکده مهندسی عمران 1393

با توجه به استفاده روزافزون قاب های خمشی مرکب و تاثیر جزییات اتصال تیر و ستون در رفتار اتصالات ستون بتنی و تیر فولادی (rcs)، در این تحقیق به بررسی عملکرد تیر متعامد در این نوع اتصالات پرداخته شده است که بدین منظور از 25 مدل با جزییات مختلف استفاده شده است. در این مطالعه علاوه بر تاثیر تیر متعامد، سایر جزییات موجود در اتصال نیز مورد بررسی قرار گرفته است. در این راستا به بررسی برخی دیگر از جزییات...

Journal: :Communications on Pure and Applied Analysis 2023

In this paper, we consider a viscoelastic plate equation of Moore-Gibson-Thompson with heat conduction Cattaneo type. We investigate the system in bounded and unbounded domains, seeking exponential stability domains polynomial decay rates for Cauchy problem. It turns out that our is exponentially stable domain, while has regularity loss Our results are proved sub-critical case $ K>0.

In this study, the vibration behavior of functional graded (FG) circular and annular nanoplate embedded in Visco-Pasternak foundation and coupled with temperature change is studied. It is assumed that a uniform radial magnetic field acts on the top surface of the plate and the magnetic permeability coefficient of the plate along its thickness are assumed to vary according to the volume distribu...

2014
Farhad Ali Ilyas Khan Sharidan Shafie

Closed form solutions for unsteady free convection flows of a second grade fluid near an isothermal vertical plate oscillating in its plane using the Laplace transform technique are established. Expressions for velocity and temperature are obtained and displayed graphically for different values of Prandtl number Pr, thermal Grashof number Gr, viscoelastic parameter α, phase angle ωτ and time τ....

2008
Changfeng Xue Junxiang Nie

The Rayleigh-Stokes problem for a generalized Maxwell fluid in a porous half-space with a heated flat plate is investigated. For the description of such a viscoelastic fluid, a fractional calculus approach in the constitutive relationship model is used. By using the Fourier sine transform and the fractional Laplace transform, exact solutions of the velocity and the temperature are obtained. Som...

2011
Lawrence Yoo Hansang Kim Andrew Shin Vijay Gupta Joseph L. Demer

This paper characterized bovine extraocular muscles (EOMs) using creep, which represents long-term stretching induced by a constant force. After preliminary optimization of testing conditions, 20 fresh EOM samples were subjected to four different loading rates of 1.67, 3.33, 8.33, and 16.67%/s, after which creep was observed for 1,500 s. A published quasilinear viscoelastic (QLV) relaxation fun...

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