MATEC Web Conf.
Volume 130, 2017The International Conference on Composite Material, Polymer Science and Engineering (CMPSE2017)
|Number of page(s)||4|
|Section||Tribology of polymer and composite materials|
|Published online||25 October 2017|
Investigation of subsurface fatigue crack in PEEK shaft under one-point rolling contact by using 2.5D layer observation method
1 Kyushu Sangyo University, 2-3-1, Matsukadai, Higashi-ku, Fukuoka, 813-8503, Japan
2 University of Toyama Gofuku 3190, Toyama, 930-8555, Japan
3 Kashima bearings Inc. 2-9-21 Himesato Nishi-Yodogawa-ku Osaka, 555-0025, Japan
a Corresponding author: firstname.lastname@example.org
Subsurface fatigue cracks under rolling contact area of the PEEK shaft against an alumina bearing’s ball were investigated for application of frictional part in mechanical element in special situations such as chemical environments. In order to explore the flaking process of the PEEK shaft, the rolling contact fatigue tests were carried out by using a one-point radial loading rolling contact machine. The flaking occurred on the rolling track of the PEEK shaft at approximate 4⨉105 fatigue cycles. The subsurface fatigue crack propagation was investigated by using 2.5-Dimension layer observation method. The flaking was caused by the propagations of surface cracks and subsurface shear cracks, and the flaking shape was half-ellipse. Moreover, beach marks as fatigue crack propagation in the flaking were observed.
© The authors, published by EDP Sciences, 2016
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