Simplified Damage Assessment Tool for Rails and Crossings Based on Standard Wear and RCF Models

Georg Schnalzger, Werner Daves, Jürgen Maierhofer, Uwe Ossberger, Heinz Ossberger, Christian Bucher, Martin Pletz

Publikation: Beitrag in FachzeitschriftArtikelForschungBegutachtung

Abstract

A numerical tool is proposed to simultaneously assess various damage mechanisms that are driven by contact loading. The tool transfers loads to the contact-patch level using three contact parameters: the maximum contact pressure (pmax), the creepage (c) and the contact length (2a). The local wear and RCF predictions are implemented based on existing models from the literature. The load input can originate from numerical vehicle–track simulations or manual input of the user. The assessment tool is applied for a finite element analysis of a fixed manganese crossing nose to prove its validity. The algorithm is implemented via an automated Python code, which, on the one hand enables damage prediction for track components based on standard damage models. On the other hand, knowledge of novel local contact damage models can be transferred to the scale of track components.
OriginalspracheEnglisch
Aufsatznummer2169
Seitenumfang20
FachzeitschriftMetals
Jahrgang12.2022
Ausgabenummer12
DOIs
PublikationsstatusVeröffentlicht - 16 Dez. 2022

Bibliographische Notiz

Funding Information:
The authors gratefully acknowledge the financial support under the scope of the COMET program within the K2 Center “Integrated Computational Material, Process and Product Engineering (IC-MPPE)” (Project No 886385). This program is supported by the Austrian Federal Ministries for Climate Action, Environment, Energy, Mobility, Innovation and Technology (BMK) and for Digital and Economic Affairs (BMDW), represented by the Austrian Research Promotion Agency (FFG), and the federal states of Styria, Upper Austria and Tyrol.

Publisher Copyright:
© 2022 by the authors.

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