1976-02-01

A Comprehensive Method for Wheel Testing by Stress Analysis 760042

A comprehensive wheel testing method is being described which permits reliable service life estimation and, at the same time, gives valuable information for optimum wheel design. Key operation is the comparison of data disclosed by stress analysis with the physical properties of the material.
Stress analysis is done on a new type slow-rolling test bench under simulated service loads. The scatter range of the stress is evaluated by calculations of probability.
The fatigue strength of the material is determined by fatigue tests applying simulated service load programs on specially developed test specimens.
When comparing the stress analysis data with the fatigue properties of the material a so-called “stress efficiency factor” is introduced.
Whereas the testing method is shown for truck spoke wheel assemblies and components it can also be applied to other types of wheels.

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