Press Release Summary:
Developed by Subcommittee E08.05 on Cyclic Deformation and Fatigue Crack Formation, ASTM E2789 provides insight on what conditions promote fretting fatigue and offers approaches to design an experiment to assess the fretting fatigue response of 2 materials in contact. Examples of fretting fatigue include dovetail connection between blade and disc of gas turbine, components in contact in riveted and bolted joints, and components that are press-fit or clamped to another component.
Original Press Release:
Fretting Fatigue Testing is Subject of New ASTM International Standard
W. CONSHOHOCKEN, Pa., - Fatigue fretting is the process of crack formation and progressive crack growth at a location in a mechanical system where two components are in contact and undergoing a vibratory loading. A new ASTM International standard provides insight on what conditions promote fretting fatigue and offers approaches to design an experiment to assess it.
ASTM E2789, Guide for Fretting Fatigue Testing, was developed by Subcommittee E08.05 on Cyclic Deformation and Fatigue Crack Formation, part of ASTM International Committee E08 on Fatigue and Fracture.
"There are no standards for conducting and analyzing fretting fatigue tests," says Richard W. Neu, Ph.D., professor of mechanical engineering, Georgia Institute of Technology, and a member of E08.05. "This guide serves as a starting point for someone who desires to evaluate the fretting fatigue response of two materials in contact."
According to Neu, examples of fretting fatigue include the dovetail connection between a blade and disc of a gas turbine, the various components in contact in riveted and bolted joints and components that are press-fit or clamped in some way to another component.
In addition to those in industry who are facing a fretting fatigue problem, Neu says that ASTM E2789 will be useful to researchers interested in developing a program dealing with fretting fatigue and fretting wear. Anyone developing more specific test methods that involve fretting will also find value in ASTM E2789.
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ASTM Committee E08 Next Meeting: May 16-20, May Committee Week, Anaheim, Calif.
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