Paper Title:
Prediction of Fretting Fatigue Life of Aluminum Alloy LY12CZ
  Abstract

Stress in the interface of contacts was calculated applying finite element software/ABAQUS, with which the Ruiz fretting damage parameter was obtained and the location for crack formation was found. A new model for predicting fretting fatigue life has been presented based on friction work. The rationality and effectiveness of the model were validated according to the contrast of experiment life and predicting life. At last influence factor on fretting fatigue life of aerial aluminum alloy LY12CZ was investigated with the model. The results revealed that fretting fatigue life decreased monotonously with the increasing of normal load and then became constant at higher pressures. At low normal load, fretting fatigue life was found to increase with increase in the pad radius. At high normal load, however, the fretting fatigue life remained almost unchanged with changes in the fretting pad radius. The bulk stress amplitude had the dominant effect on fretting fatigue life. The fretting fatigue life diminished as the bulk stress amplitude increased.

  Info
Periodical
Advanced Materials Research (Volumes 146-147)
Edited by
Sihai Jiao, Zhengyi Jiang and Jinglong Bu
Pages
252-256
DOI
10.4028/www.scientific.net/AMR.146-147.252
Citation
M. S. Yang, Y. L. Chen, Y. Q. Bi, W. H. Jiang, "Prediction of Fretting Fatigue Life of Aluminum Alloy LY12CZ", Advanced Materials Research, Vols. 146-147, pp. 252-256, 2011
Online since
October 2010
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Price
$32.00
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