Paper Title:
Studies on Strain Fatigue Crack Growth Rate Controlled by Displacement or Load of 16MnR Steel
  Abstract

In order to understand the strain fatigue crack growth rate of pressure vessel steel controlled by displacement or load, we did experiments on strain fatigue of 16MnR steel and describe the fatigue with the energy method. We have obtained delayed cycle curve of strain fatigue controlled by displacement or load and calculated the J-integral at crack tip. In order to compare strain fatigue crack growth rates of 16MnR steel on two conditions,we compute weighted means of the strain fatigue controlled by displacement or load. Comparing two kinds of fatigue growth rate, it is obvious that the crack growth rate of fatigue controlled by displacement is greater than that controlled by load. All experiments show that compress plastic energy is higher, the fatigue growth rate of 16MnR is lower.

  Info
Periodical
Advanced Materials Research (Volumes 243-249)
Edited by
Chaohe Chen, Yong Huang and Guangfan Li
Pages
5680-5685
DOI
10.4028/www.scientific.net/AMR.243-249.5680
Citation
Y. Yan, A. Z. Liu, D. X. Zhou, "Studies on Strain Fatigue Crack Growth Rate Controlled by Displacement or Load of 16MnR Steel", Advanced Materials Research, Vols. 243-249, pp. 5680-5685, 2011
Online since
May 2011
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$32.00
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