نتایج جستجو برای: semi analytical finite element method

تعداد نتایج: 2141820  

Journal: :Computers and Geotechnics 2021

This paper is concerned with a new prediction methodology for longitudinally invariant soil-structure interaction problems in elastodynamics. The method uses the finite-element to model structure, boundary-element local soil surrounding structure and of fundamental solutions wave propagation through soil, all them formulated two-and-a-half dimensional domain. proposed firstly obtains displaceme...

Journal: :Metals 2021

This work presents a non-destructive method for quantitative essessment of fatigue damage materials with linear elastic properties using nonlinear ultrasonic techniques. A study was conducted on these and shot peening processing technique. numerical based the semi-analytical finite element (SAFE) technique, used to obtain phase-matching modes specimens. Experiments confirm that nonlinearity sam...

2017
Longbin Tao Hao Song Subrata Chakrabarti

6 The scaled boundary finite-element method (SBFEM) is a novel semi-analytical method 7 developed in the elasto-statics and elasto-dynamics areas that has the advantages of com8 bining the finite-element method with the boundary-element method. The SBFEM method 9 weakens the governing differential equation in the circumferential direction and solves the 10 weakened equation analytically in the ...

J.N Reddy R Ranjan,

Displacement finite element models of various beam theories have been developed traditionally using conventional finite element basis functions (i.e., cubic Hermite, equi-spaced Lagrange interpolation functions, or spectral/hp Legendre functions). Various finite element models of beams differ from each other in the choice of the interpolation functions used for the transverse deflection w, tota...

1999
John Elie Sader

The analysis of the static deflection of cantilever plates is of fundamental importance in application to the atomic force microscope (AFM). In this paper we present a detailed theoretical study of the deflection of such cantilevers. This~ shall incorporate the presentation of approximate analytical methods applicable in the analysis of arbitrary cantilevers, and a discussion of their limitatio...

2007
Pierre Michaud Yiannakis Sazeides

As microprocessors become increasingly thermally constrained, microarchitecture and operating-system research will require temperature models that are reliable, fast, and easy to use. This goal is difficult to achieve with generalpurpose tools like those based on finite elements. We have developed a computationally efficient temperature model, called ATMI, using analytical methods. ATMI is spec...

خادم‌ الرسول, عبدالغفور, نادری, رضا,

This study shows how to create different types of crack and discontinuities by using isogeometric analysis approach (IGA) and extended finite element method (XFEM). In this contribution, two unique features of isogeometric analysis approach are utilized to create discontinuous zones. Discontinuities consist of crack and cohesive zone. In isogeometric analysis method NURBS is used to approximate...

Journal: :Applied Mathematics and Computation 2009
Li Shan Yanren Hou

In this article, we consider a fully discrete stabilized finite element method based on two local Gauss integrations for the two-dimensional time-dependent Navier–Stokes equations. It focuses on the lowest equal-order velocity–pressure pairs. Unlike the other stabilized method, the present approach does not require specification of a stabilization parameter or calculation of higher-order deriva...

Journal: :journal of lasers in medical sciences 0
kawther mohammad shurrab higher institute for laser research and applications, damascus university, syria. moustafa sayem el-daher higher institute for laser research and applications, damascus university, syria

introduction: with the rapid increase in use of lasers in medical treatments, it is important to understand the mechanisms of heat transfer in biological tissues in order to minimize damage to the tissues resulting from extra heat applied. the aim of this study is to investigate the temperature distribution in living biological tissues when laser irradiation is used in a treatment. methods:  in...

Journal: :journal of dentistry, tehran university of medical sciences 0
a. geramy

objective: intrusion as a type of tooth movement is managed by different mechanotherapies during various treatment stages. the morphology of the apical third of the teeth to be intruded plays an important role in the risk of root resorption due to the raise of stresses. the main goal of this study was to compare various types of apical third of the teeth while loaded by an intrusive force. mate...

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