Crack initiation and propagation in circular rubber bearings subjected to cyclic compression

Hsoung Wei Chou, Jong Shin Huang

研究成果: Article同行評審

5 引文 斯高帕斯(Scopus)

摘要

The fatigue failure mechanism of rubber bearings under cyclic compression is important in evaluating their fatigue lives and thus is analyzed theoretically and numerically here. At first, the stress distributions in a bonded rubber cylinder derived from three different existing models were utilized to calculate the cracking energy densities within it. Next, the location of fatigue crack initiation and the direction of subsequent crack propagation in circular rubber bearings were consecutively determined. Furthermore, finite element numerical results were compared to those obtained theoretically from the three models to check their validity in predicting the fatigue crack initiation and propagation in circular rubber bearings. Based on the quasi-statically theoretical and numerical results, it is found that the fatigue cracks initiate first at the outermost boundary between rubber and steel plates and propagate later inwards to the center of circular rubber bearings. The corresponding fatigue failure mechanism obtained theoretically and numerically is consistent with experimental findings reported previously.

原文English
頁(從 - 到)1747-1756
頁數10
期刊Journal of Applied Polymer Science
121
發行號3
DOIs
出版狀態Published - 2011 8月 5

All Science Journal Classification (ASJC) codes

  • 一般化學
  • 表面、塗料和薄膜
  • 聚合物和塑料
  • 材料化學

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