Fatigue crack growth simulation in railway axles
In order to carry out the railway axle design according to the "Damage Tolerance" philosophy, reliable crack-growth models for these kind of components are necessary. Indeed, damage tolerance principles have received more and more attention from railway technical community, thanks to its ambitious task concerning the inspection intervals prevision of railway components subjected to non-stationary loading conditions. In this paper, a simple routine is exposed that is able to calculate the characteristic parameters of the Linear Elastic Fracture Mechanics (LEFM) for a generic cracked mechanical component. Such parameters are then used in a two parameters propagation law to estimate the necessary time for a crack to become critical.
Item Type | Other |
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Uncontrolled Keywords | Damage tolerance; Finite element method; Fracture mechanics; Railway components |
Subjects |
Materials Science(all) Engineering(all) > Mechanics of Materials Engineering(all) > Mechanical Engineering |
Date Deposited | 27 Jul 2024 00:51 |
Last Modified | 27 Jul 2024 00:51 |
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