Results 211 to 220 of about 21,120 (261)
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1995
In modern times the finite element method has become established as the universally accepted analysis method in structural design. The method leads to the construction of a discrete system of matrix equations to represent the mass and stiffness effects of a continuous structure. The matrices are usually banded and symmetric.
M. I. Friswell, J. E. Mottershead
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In modern times the finite element method has become established as the universally accepted analysis method in structural design. The method leads to the construction of a discrete system of matrix equations to represent the mass and stiffness effects of a continuous structure. The matrices are usually banded and symmetric.
M. I. Friswell, J. E. Mottershead
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1999
Die Bewegungen der Kontinuumsmodelle aus den Kapiteln 2 und 4 werden durch partielle Differentialgleichungen beschrieben, deren Losungen geometrischen und kinetischen Randbedingungen genugen mussen. Eine analytische Losung der Gleichungen gelingt nur bei sehr einfachen Modellen und Randbedingungen.
Richard Schwertassek, Oskar Wallrapp
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Die Bewegungen der Kontinuumsmodelle aus den Kapiteln 2 und 4 werden durch partielle Differentialgleichungen beschrieben, deren Losungen geometrischen und kinetischen Randbedingungen genugen mussen. Eine analytische Losung der Gleichungen gelingt nur bei sehr einfachen Modellen und Randbedingungen.
Richard Schwertassek, Oskar Wallrapp
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2003
Long before the contemporary concept of discretization used in the finite element method (FEM) appeared, so-called physical discretization (or physical lumping in English literature) methods were in active use. There, to solve a continual problem, a system with a finite number of degrees of freedom used to be introduced on the basis of certain physical
Anatoly V. Perelmuter +1 more
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Long before the contemporary concept of discretization used in the finite element method (FEM) appeared, so-called physical discretization (or physical lumping in English literature) methods were in active use. There, to solve a continual problem, a system with a finite number of degrees of freedom used to be introduced on the basis of certain physical
Anatoly V. Perelmuter +1 more
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Finite Element Modelling of Sewer Linings
Civil-Comp Proceedings, 1997Abstract In the course of renovating egg-shaped sewer linings, comparisons of stress/strain and deflection levels with their permissible values are complicated not only by their shape but also by their considerably variable material properties and the choice of intermediate restraint set-ups.
M.N. Pavlović, S. Arnaout, D. Hitchings
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A finite element model for the simulation of hydrometra
Technology and Health Care, 2004The behaviour of the human uterus under an internal (intracavital) pressure of 150 mm Hg (20 kPa) was modelled. The application of such an intracavital or intrauterine pressure corresponds to the procedure which is performed at the beginning of hysteroscopy (hydrometra).
Weiss, St. +4 more
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2015
This chapter covers the numerical modeling of carbon nanotubes based on the finite element method. The approach based on a three-dimensional space-frame structure where the bonds between carbon atoms are considered as connecting load-carrying generalized beam members, while the carbon atoms act as joints of the members, is introduced. The assignment of
Sadegh Imani Yengejeh +2 more
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This chapter covers the numerical modeling of carbon nanotubes based on the finite element method. The approach based on a three-dimensional space-frame structure where the bonds between carbon atoms are considered as connecting load-carrying generalized beam members, while the carbon atoms act as joints of the members, is introduced. The assignment of
Sadegh Imani Yengejeh +2 more
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A finite element model for ultrasonic cutting
Ultrasonics, 2006Using a single-blade ultrasonic cutting device, a study of ultrasonic cutting of three very different materials is conducted using specimens of cheese, polyurethane foam and epoxy resin. Initial finite element models are created, based on the assumption that the ultrasonic blade causes a crack to propagate in a controlled mode 1 opening, and these are ...
Margaret, Lucas +3 more
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Schwinger model on a finite-element lattice
Physical Review D, 1988The mass gap in the Schwinger model is calculated directly using a method which involves expansion in the lattice spacing. On the lattice the mass in the model is given by ..mu../sup 2/ = e/sup 2//M sin(..pi../M), where M is the number of spatial lattice sites. Current correlation functions and matrix elements are also examined.
, Grose, , Milton
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2004
Many structures of practical importance are too complex to be analyzed by classical, analytical techniques and, hence, numerical analysis is generally used. The finite element method is the most widely used numerical technique for structural and system analyses.
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Many structures of practical importance are too complex to be analyzed by classical, analytical techniques and, hence, numerical analysis is generally used. The finite element method is the most widely used numerical technique for structural and system analyses.
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A FINITE ELEMENT MODEL FOR ACOUSTIC RADIATION
Journal of Sound and Vibration, 1998Summary: An extension of the finite element technique to the analysis of the acoustic radiation is presented. In the proposed approach, the acoustic domain is split into two parts by an arbitrary artificial boundary enclosing the radiating surface. Then the unbounded medium is discretized with finite elements consisting of only one or two rows in the ...
Wu, S.-W., Lian, S.-H., Hsu, L.-H.
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