Engineering Mechanics

Proceedings Vol. 10 (2004)

ENGINEERING MECHANICS 2004

Copyright © 2004 Institute of Thermomechanics, Academy of Sciences of the Czech Republic, Prague

 

Svoboda J., Balda M., Fröhlich V.
pages 269 - +10p., full text

An investigation of fatigue strength and life is usually joined with experiments, which are made using small testing specimens. This is the reason why majority of numerical methods used for fatigue of materials was derived basing on those experiments under simple kinds of loading. It is rather difficult to apply these methods for real structures loaded by random combined processes in service. Most of necessary data and formula are empirical and used to be taken from a literature. This often leads to unexpectable results. The contribution discusses the problem and shows its complexity on an example in which the experimental an numerical results of fatigue lives of front parts of the Metrocoach bogie are compared.

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