Determination of the digitizing errors generated in the finite-element computation of railway wheels

1990 ◽  
Vol 22 (5) ◽  
pp. 740-743
Author(s):  
V. P. Esaulov ◽  
A. V. Sladkovskii
Keyword(s):  
Finite Element ◽  
Element Computation ◽  
Railway Wheels ◽  
Finite Element Computation

Some Modeling Issues on the Finite Element Computation of Thermal Stresses in Metal Lines

1993 ◽  
Vol 115 (4) ◽  
pp. 392-403 ◽  
Author(s):  
Arturo O. Cifuentes ◽  
Iqbal A. Shareef
Keyword(s):  
Finite Element ◽  
Stress Field ◽  
Geometric Nonlinearity ◽  
Thermal Stresses ◽  
Element Computation ◽  
Element Technique ◽  
Versus Plane ◽  
Evolving Models ◽  
Finite Element Computation

Thermal stresses are a major concern in the reliability of metal lines. This paper addresses some modeling issues concerning the determination of thermal stresses in such structures. Specifically, a finite element technique that allows one to follow the evolution of the stress field as a function of the steps of the manufacturing process is discussed. In addition, comparisons between several modeling strategies, namely, plane stress versus plane strain, geometric nonlinearity versus geometric linearity, “frozen view” models versus “evolving” models, etc., are presented. A detailed example describing the manufacturing of a copper line is included to illustrate these points.

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