Three-dimensional finite element calculations in acoustic scattering using arbitrarily shaped convex artificial boundaries

2001 ◽  
Vol 53 (6) ◽  
pp. 1461-1476 ◽  
Author(s):  
Radek Tezaur ◽  
Antonini Macedo ◽  
Charbel Farhat ◽  
Rabia Djellouli
Keyword(s):  
Finite Element ◽  
Three Dimensional ◽  
Acoustic Scattering ◽  
Finite Element Calculations ◽  
Dimensional Finite Element ◽  
Artificial Boundaries ◽  
Three Dimensional Finite Element

Comparison of Stress Distributions in a Simple Cast Tubular Joint Using 3-D Finite Element, Photoelastic and Strain Gage Techniques

1984 ◽  
Vol 106 (4) ◽  
pp. 480-488 ◽  
Author(s):  
H. Fessler ◽  
C. D. Edwards
Keyword(s):  
Finite Element ◽  
Strain Gage ◽  
Excellent Agreement ◽  
Cast Steel ◽  
Three Dimensional ◽  
Stress Distributions ◽  
Finite Element Calculations ◽  
Dimensional Finite Element ◽  
Tubular Joint ◽  
Three Dimensional Finite Element

Combined strip and rosette gage measurements and results from three-dimensional, finite element calculations are in excellent agreement with frozen stress photoelastic results for an efficient shape of cast-steel node under axial, brace loading. Three different meshes showed that two layers of elements through the thickness are needed.

scholarly journals Un élément fini de poutre fissurée

2007 ◽  
pp. 643-663
Author(s):  
Saber El Arem ◽  
Habibou Maitournam
Keyword(s):  
Finite Element ◽  
Stiffness Matrix ◽  
Three Dimensional ◽  
Original Method ◽  
Unilateral Contact ◽  
Cracked Beam ◽  
Contact Conditions ◽  
Finite Element Calculations ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element

In this paper, an original method for construction of a cracked beam finite element is presented. The additional flexibility due to the cracks is identified from three-dimensional finite element calculations taking into account the unilateral contact conditions between the cracks lips. Based on this flexibility which is distributed over the entire length of the element, a new cracked finite element stiffness matrix is deduced. Considerable gain in computing efforts is reached compared to the nodal representation of the cracked section when dealing with the numerical integration of differential equations in structural dynamics.

Finite Element Analysis of Nonuniformity of Tires with Imperfections5

2007 ◽  
Vol 35 (3) ◽  
pp. 226-238 ◽  
Author(s):  
K. M. Jeong ◽  
K. W. Kim ◽  
H. G. Beom ◽  
J. U. Park
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Three Dimensional ◽  
Element Model ◽  
Radial Force ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Dimensional Finite Element ◽  
Force Variation ◽  
Three Dimensional Finite Element

Abstract The effects of variations in stiffness and geometry on the nonuniformity of tires are investigated by using the finite element analysis. In order to evaluate tire uniformity, a three-dimensional finite element model of the tire with imperfections is developed. This paper considers how imperfections, such as variations in stiffness or geometry and run-out, contribute to detrimental effects on tire nonuniformity. It is found that the radial force variation of a tire with imperfections depends strongly on the geometrical variations of the tire.

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