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Article: Figuring out frog failures: impacts causing running surface deformation and metal flow, as well as what materials are used, are significant causes of failure in railroad frogs.
- Article from:
- Railway Track and Structures
- Article date:
- May 1, 2002
- Author:
CopyrightCOPYRIGHT 2002 Simmons-Boardman Publishing Corporation. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Thousands of frogs reach the failure point every year. A current study is designed to find out why frogs fail in hopes of coming up with new designs and materials as well as procedures to add lots of mgt to the effective service life of this very-expensive piece of railroad hardware.
The Transportation Technology Center, Inc., study was featured in a recent issue of Technology Digest. David Davis of TTCI, Yi-Ren Chen and Frederick Lawrence of the University of Illinois at Urbana-Champaign and Christopher Barkan of the AAR-Affiliated Laboratory at UTUC authored the paper.
The TTCI study identified impacts and the resulting running surface deformation, as ...