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Nondestructive Evaluation , Edited by J. Pávó, Vol. V, IOS Press, 2001, pp. 67–74. Kuczmann M., Iványi A., The finite element method in magnetics, Akadémiai Kiadó , Budapest, 2008. Bíró O. CAD in

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reinforced concrete plates with central rectangular hole using finite element method , Mat. Desg. Vol. 30 , No. 6 , 2009 , pp. 2243 – 2249 . [8] Shlack A. L

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I. Babuska B. K. Chayapathy 1989 Stress Computation for Nearly Incompressible Materials by the p-version of the Finite Element Method

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Element Method (FEM), and for that, the ANSYS 2019 R1 Code was used. The boundary condition the following fixed support was at one end of the beam, and on the other end, the load was applied was a frictionless support. This load always was moment type load

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–186. Bojtár I., Gáspár Zs. Finite element method for civil engineers , (in Hungarian) Budapest, TERC Ltd, 2003. Gáspár Zs. Finite element method for civil

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methods of rails that are based on ultrasonic wave propagation were widely used [ 6 ]. The SAFE approach to determine the dispersive curves is to discretize the domain cross-section by the finite element method, in a two-dimensional problem (2D). In the

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-Parsi M. , Daneshmand F. Three-dimensional smoothed fixed grid finite element method for the solution of unconfined seepage problems , Finite Elements in Analysis and Design , Vol. 64 , 2013 , pp. 24 – 35

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method (FVM) [ 34 ] and the Finite Element Method (FEM) [ 35 ]. In this work, we will choose this last method as a method of solving problems of irregular structures in elevation. The concept of this method is used for numerical analysis wherein the model

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Negative thermal expansion materials

Thermal properties and implications for composite materials

Journal of Thermal Analysis and Calorimetry
Authors: Michael Jakubinek, Catherine Whitman, and Mary White

Abstract  

Finite element analysis is used to explore composites of negative thermal expansion materials with positive thermal expansion materials (ZrW2O8 in Cu and ZrO2 in ZrW2O8) and evaluate how thermal and mechanical properties, rates of cooling/heating, and geometry and packing fraction influence the overall expansion and thermal stress. During rapid temperature changes, the transient short-time thermal expansion can be considerably larger than the steady-state value. Furthermore, thermal stress in the composite can be large, especially at the interface between the materials, and can exceed the material strength.

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The paper describes efficient methods to post-process results from the finite element analysis. Amount of data produced by the complex analysis is enormous. However, computer performance and memory are limited and commonly-used software tools do not provide ways to post-process data easily. Therefore, some sort of simplification of data has to be used to lower memory consumption and accelerate data loading. This article describes a procedure that replaces discrete values with a set of continuous functions. Each approximation function can be represented by a small number of parameters that are able to describe the character of resulting data closely enough.

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