In the railroad industry the principal design problem is posed by the extreme fatigue environment in which railroad equipment must operate. The best available solution is the implementation of a fracture control plan based on the principles and techniques of linear elastic fracture mechanics. The analytical aspects of fracture control are examined. It is shown that computation of stress intensity factors is a much simpler problem than computation of the stresses, and the p-version of the finite element method is far better suited for computing the stress intensity factors than the conventional h-version. The p-version provides means for the assessment of the quality of finite element approximations.
Fatigue life computations in the railroad industry
Lebensdauerberechnungen in der Eisenbahnindustrie
1982
13 Seiten, 7 Bilder, 11 Quellen
Conference paper
English
Some fatigue problems of railroad industry
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