نتایج جستجو برای: thermoelasticity without energy dissipation

تعداد نتایج: 1438224  

Journal: :civil engineering infrastructures journal 0
asghar vatani oskouei department of civil engineering, shahid rajaee teacher training university, p.o.box 16785-136, tehran, iran foad kiakojouri department of structural engineering, islamic azad university, takestan branch, iran.

in this paper, the non-linear dynamic response of novel steel sandwich panel with hollow i-core subjected to blast loading was studied. special emphasis is placed on the evaluation of midpoint displacements and energy dissipation of the models. several parameters such as boundary conditions, strain rate, mesh dependency and asymmetrical loading are considered in this study. the material and geo...

2017
MICHAEL EDEN ADRIAN MUNTEAN Ralph Showalter

We investigate corrector estimates for the solutions of a thermoelasticity problem posed in a highly heterogeneous two-phase medium and its corresponding two-scale thermoelasticity model which was derived in [11] by two-scale convergence arguments. The medium in question consists of a connected matrix with disconnected, initially periodically distributed inclusions separated by a sharp interfac...

2007
Pavel Solin Jakub Cerveny Lenka Dubcova

We present a new adaptive hp-FEM for linear thermoelasticity where each displacement component and the temperature are approximated on different meshes which are equipped with individual energy-based adaptivity mechanisms. We demonstrate that the multimesh hp-FEM can capture individual behavior of every solution component more efficiently than standard hp-FEM. AMS subject classification: 35B50,...

Journal: :علوم کاربردی و محاسباتی در مکانیک 0
صالح عباسی مود مجید ملک جعفریان

present paper investigates the numerical solution of two-dimensional unsteady compressible navier-stokes equations by a new scheme based on the finite volume method. kinetic energy preserving (kep) scheme is introduced for solving the supersonic and transonic external compressible flow field on very fine grids (with a number of cells of the order of the reynolds number) without artificial dissi...

2013
Mohamed I. A. Othman Sarhan. Y. Atwa A. Khan

The present paper is aimed at studying the effect of gravity on the general model of the equations of the generalized thermomicrostretch for a homogeneous isotropic elastic half-space solid whose surface is subjected to a Mode-I crack problem. The problem is in the context of the Green and Naghdi theory (GN). The normal mode analysis is used to obtain the exact expressions for the displacement ...

ژورنال: علوم آب و خاک 2020

Lopac gates, with the benefits of easy installation, automation and the ability to pass sediments and floating objects, are among the new structures considered for water level regulation and flow control in the irrigation canals. Converting the shape of the gate from a rectangular one to an elliptical one allows the flow rate to be increased by the same water level. In the present study, the ef...

2007
Wei-Jiu Liu Enrique Zuazua

Using multipler techniques and Lyapunov methods, we derive explicit decay rates for the energy in the higher-dimensional system of thermoelasticity with a nonlinear velocity feedback on part of the boundary of a thermoelastic body, which is clamped along the rest of its boundary.

Journal: :Classical and Quantum Gravity 2023

Thermoelastic loss is an important energy dissipation mechanisms in resonant systems. A careful analysis of the thermoelastic critical to design low-noise devices for high-precision applications, such as mirrors used gravitational-wave detectors. In this paper, we present analytical solutions due thermoelasticity between different materials that are contact. We find expressions multimaterial co...

2016
Jeongmin Hong Brian Lambson Scott Dhuey Jeffrey Bokor

Minimizing energy dissipation has emerged as the key challenge in continuing to scale the performance of digital computers. The question of whether there exists a fundamental lower limit to the energy required for digital operations is therefore of great interest. A well-known theoretical result put forward by Landauer states that any irreversible single-bit operation on a physical memory eleme...

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