Modeling fretting fatigue: interface contact conditions based on profilometry data

Perikles D. Nicolaou; Theodore E. Matikas; Eric B. Shell

doi:10.1117/12.339853

8 February 1999 Modeling fretting fatigue: interface contact conditions based on profilometry data

Perikles D. Nicolaou, Theodore E. Matikas, Eric B. Shell

Proceedings Volume 3585, Nondestructive Evaluation of Aging Materials and Composites III; (1999) https://doi.org/10.1117/12.339853
Event: Nondestructive Evaluation Techniques for Aging Infrastructures and Manufacturing, 1999, Newport Beach, CA, United States

Abstract

The parameters that govern the life of metallic materials under conditions of fretting fatigue may be divided into two broad categories. The first category deals with the materials properties and characteristics while the second includes the externally imposed loading conditions and contact geometry. The two materials in contact may either stick, slip or stick-clip with each other. It has been shown that the life reduction is highest under partial slip. The objective of the present research effort is focused to the prediction of the particular fretting fatigue regime and hence get an estimate of the life reduction of a particular materials/component. The above may be accomplished by using as input to a specific model, a series of data obtained from non-destructive and other characterization techniques. To this end, the bodies in contact is developed and hence the different materials as well as external parameters which influence the process are identified. Although the external are implied by the should be determined quantitatively. This is accomplished by white light interference profilometry, which was used to characterization were used as input into the model to predict the actual contact conditions. Experimental results concerned with the fatigue life were plotted on the fretting maps; the fretting fatigue regimes indicated by the latter enabled the interpretation of the experimental data.

Citation Download Citation

Perikles D. Nicolaou, Theodore E. Matikas, and Eric B. Shell "Modeling fretting fatigue: interface contact conditions based on profilometry data", Proc. SPIE 3585, Nondestructive Evaluation of Aging Materials and Composites III, (8 February 1999); https://doi.org/10.1117/12.339853

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