Table of Contents
Conference Papers in Science
Volume 2015, Article ID 525274, 6 pages
http://dx.doi.org/10.1155/2015/525274
Conference Paper

A Study of Correlation between Crack Initiation during Dynamic Wear Process and Fatigue Crack Growth of Reinforced Rubber Materials

1Chemnitz University of Technology, 09107 Chemnitz, Germany
2Department of Polymer Engineering, Faculty of Technology, Tomas Bata University Zlín, 76001 Zlín, Czech Republic
3Centre of Polymer Systems, University Institute, Tomas Bata University in Zlín, 76001 Zlín, Czech Republic
4PRL Polymer Research Lab., s.r.o., 76001 Zlín, Czech Republic

Received 1 August 2014; Accepted 12 January 2015

Academic Editor: Matthias Scherge

This Conference Paper is based on a presentation given by Eric Euchler at “European Symposium on Friction, Wear, and Wear Protection” held from 6 May 2014 to 8 May 2014 in Karlsruhe, Germany.

Copyright © 2015 Eric Euchler et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The aim of this study is concentrated on the experimental investigation of crack initiation during dynamic wear process and its correlation with fatigue crack growth of reinforced rubber materials. The analyzed rubber compounds suitable for applications such as treads for truck tires were based on natural rubber (NR) and polybutadiene rubber (BR). The dynamic wear behavior has been studied using an own developed testing equipment based on gravimetric determination of mass loss of test specimen. Fatigue crack growth (FCG) analysis was performed under pulse loading in accordance with real dynamic loading conditions of rolling tires using the Tear Analyser (TA). We show the crack initiation process during dynamic wear with respect to different impact energies and correlate the liability of crack initiation with FCG data at given tearing energy as a function of the rubber compositions. We demonstrate the higher crack initiation resistance of rubber blends with increased content of BR, while a predominant influence of NR improves the resistance against crack propagation especially at higher strain levels due to strain induced crystallization.