نتایج جستجو برای: thermoelasticity type iii

تعداد نتایج: 1554361  

The free vibration analysis ofhomogeneous isotropic micropolar thermoelastic cylindrical curved plate in circumferential direction has been investigated in the context of generalized themoelasticity III, recently developed by Green and Naghdi. The model has been simplified using Helmholtz decomposition technique and the resulting equations have been solved using separation of variable method. M...

Journal: :iranian journal of basic medical sciences 0
elham mohammadzadeh 1department of anatomy and cell biology, school of medicine, mashhad university of medical sciences, mashhad, iran mohammad reza nikravesh 1department of anatomy and cell biology, school of medicine, mashhad university of medical sciences, mashhad, iran mehdi jalali 1department of anatomy and cell biology, school of medicine, mashhad university of medical sciences, mashhad, iran alireza fazel 1department of anatomy and cell biology, school of medicine, mashhad university of medical sciences, mashhad, iran vahid ebrahimi 1department of anatomy and cell biology, school of medicine, mashhad university of medical sciences, mashhad, iran ali reza ebrahimzadeh-bideskan 1department of anatomy and cell biology, school of medicine, mashhad university of medical sciences, mashhad, iran

objective(s):skin extracellular matrix, which contains type i and type iii collagens, is involved in skin development. the aim of this study was to investigate type iii collagen distribution pattern as well as its changes during pre and post-natal skin morphogenesis in rats. materials and methods: ventral skins of wistar rat embryos at different stages from 10 to 20 gestational day (e10-e20) an...

Journal: :Int. J. Math. Mathematical Sciences 2005
S. K. Roy Choudhuri Nupur Bandyopadhyay

A study is made of the propagation of time-harmonic plane thermoelastic waves of assigned frequency in an infinite rotating medium using Green-Naghdi model (1993) of linear thermoelasticity without energy dissipation. A more general dispersion equation is derived to examine the effect of rotation on the phase velocity of the modified coupled thermal dilatational shear waves. It is observed that...

Journal: :Applied Mathematics and Computation 2001
Roderick V. N. Melnik

In this article, the author studies the properties of discrete approximations for mathematical models of coupled thermoelasticity in the stress-temperature formulation. Since many applied problems deal with steep gradients of thermal elds, the main emphasis is given to the investigation of non-smooth solutions of non-stationary thermoelasticity. Convergence of operator-diierence schemes on weak...

2011
S. Shaw B. Mukhopadhyay

In this paper, a new theory of generalized micropolar thermoelasticity is derived by using fractional calculus. The generalized heat conduction equation in micropolar thermoelasticity has been modified with two distinct temperatures, conductive temperature and thermodynamic temperature by fractional calculus which depends upon the idea of the RiemannLiouville fractional integral operators. A un...

2004
M. A. Rincon B. S. Santos

In this work, we are interested in obtaining existence, uniqueness of the solution and an approximate numerical solution for the model of linear thermoelasticity with moving boundary. We apply finite element method with finite difference for evolution in time to obtain an approximate numerical solution. Some numerical experiments were presented to show the moving boundary’s effects for problems...

2012
Yuxi Hu Reinhard Racke YUXI HU REINHARD RACKE

We investigate the formation of singularities in thermoelasticity with second sound. Transforming into Euler coordinates and combining ideas from Sideris [14], used for compressible fluids, and Tarabek [15], used for small data large time existence in second sound models, we are able to show that there are in general no global smooth solutions for large initial data. In contrast to the situatio...

2003
Theodore F. Johnson Walter D. Pilkey

Formulations for a general theory of thermoelasticity to generate accurate thermal stresses for structural members of aeronautical vehicles were developed in 1954 by Boley. The formulation also provides three normal stresses and a shear stress along the entire length of the beam. The Poisson effect of the lateral and transverse normal stresses on a thermally loaded beam is taken into account in...

Journal: :Journal of Applied Mechanics 1969

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