SEDL / STP / STP1425-EB / STP10749S

Observations and Analysis of Relative Slip in Fretting Fatigue

Nishida, T
Numazu College of Technology, Numazu-shi,

Kondoh, K
Topy Industries, Ltd., Ayase-shi,

Xu, J-Q
Nagaoka University of Technology, Nagaoka-shi,

Mutoh, Y
Nagaoka University of Technology, Nagaoka-shi,

Pages: 11    Published: Jan 2003

Download this paper for $25 PDF (228K)          View License Agreement
Abstract

In-situ observation of the relative slip along the contact surface was conducted on a servo-hydraulic fatigue machine with scanning electron microscope. It was found that the relative slip observed by this method was much smaller than that obtained by a conventional small extensometer. It was also found that the relative slip depended on the rigidity of the contact pad. The higher the rigidity of the pad was, the larger the relative slip became. Numerical analysis with the use of the finite element method (FEM) program ABAQUS was also carried out. The relative slip estimated by the FEM agreed well with the observed one. Therefore, it was proved that the in-situ observation method introduced in this study was effective enough for measuring relative slip at the contact edge.