WIT Press


A Fatigue Limit Diagram For Plastic Rail Clips

Price

Free (open access)

Paper DOI

10.2495/CR140701

Volume

135

Pages

10

Page Range

839 - 848

Published

2014

Size

852 kb

Author(s)

S. Tamagawa, H. Kataoka & T. Deshimaru

Abstract

The purpose of this study is to develop a fatigue limit diagram for plastic rail clips. Firstly, a new fatigue limit diagram was formularized based on the mechanical properties of material and its fatigue limit under repeated load. The diagram is represented by the relationship between the mean strain and the strain amplitude. Secondly, the material of the clip was tested to obtain the accurate values of the fundamental properties that constitute the diagram. Finally, fatigue tests were carried out and the fatigue limit diagram was compared with the test results in order to check the validity of the diagram. As a result, it was concluded that the new fatigue limit diagram is available for estimating the fatigue strength of plastic rail clips. Keywords: rail clip, fatigue limit diagram, plastic deformation, fatigue strength, tensile test, fatigue test.

Keywords

rail clip, fatigue limit diagram, plastic deformation, fatigue strength,tensile test, fatigue test.