文档介绍：CATIA V5
FEA Tutorials
Releases 12 & 13
Nader G. Zamani
University of Windsor
SDC
PUBLICATIONS
Schroff Development Corporation
.com
CATIA V5 FEA Tutorials 2-1
CopyrightedChapter 2
AnalysisMaterial of a Bent Rod with
Solid Elements
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Material
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Material
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Material
2-2 CATIA V5 FEA Tutorials
Introduction
In this tutorial, a solid FEA model of a bent rod experiencing bined load is created.
No planes of symmetryCopyrighted exist and therefore simplifications cannot be made. Finally, the
significance of the von Mises stress in design equation is discussed.
1 Problem Statement
Material
The bent rod, shown to the right, is clamped at one end and loaded end
subjected to a load of 2000 lb as displayed. The steel rod has a
Young modulus of 30E+6 psi and Poisson ratio .
The nominal dimensions of the rod are also displayed below.
Although this problem is more efficiently handled with beam
elements, we propose to use solid elements.
There are two types of solid elements available in CATIA V5:
linear and Both are referred to as tetrahedron Clamped end
elements and shown below.
5 in
TetrahedronMaterial Elements
1 in
8 in
Cross sectional
Radius is 1 in
linear parabolic
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The linear tetrahedron elements are putationally but less accurate. On the other
hand, the parabolic elements require putational resources but lead to more
accurate results. Another importantMaterial feature of parabolic elements is that they can fit
curved surfaces better. In general, the analysis of bulky objects requires the use of solid
elements.
2 Creation of the Part in Mechanical Design Solutions
Enter the Part Design workbench which can be
achieved by different means depending on your CATIA
For example, from the standard window