Browse Publications Technical Papers 2001-01-4055
2001-03-05

Parametric Modelling of Steel Car Wheels for Finite Element Virtual Fatigue Tests 2001-01-4055

This work aims to present procedures for developing a project tool that is able to generate parametric models of automotive wheels to be calculated through Finite Elements Method (FEM).
The development of a parametric program that could, at the same time, control the geometry, the loading and the mesh associated to a virtual test of rotating fatigue, through the method of finite elements, was the main objective of this work and was successfully executed.
In any type of structural analysis, calculation results must be compared with some available parameter in order to establish the adequacy of the structural behavior. Consequently, we should have results that represent a close estimate of what we believe to be the actual structure behavior, which are based on hypothesis adopted in theory, and we should also have the nominal acceptable limits which we expect any well projected structure to be compliant.
For instance, the stresses obtained from a static analysis are usually confronted with yield stress of the material obtained from a simple traction trial, which are actually carried out in substantially different conditions than those faced by the structure.
Another objective of this project was to enable the use of the FEM by engineers and designers who work in product engineering but who do not have the same professional skills of numerical analysts, who many times know little about the product although adequately about the method.

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