Paper Title:
Fatigue Crack Propagation Analysis of X60 Pipeline Steel Pipelines with Defects
  Abstract

It is impossible to keep pipelines free from defects in the manufacturing, installation and servicing processes. In this paper, pre-tension deformation is used to imitate the defects of the part of material and the electric method is used to measure the distance of the fatigue crack. Experimental investigations were carried out on the fatigue crack propagation characteristics of X60 pipeline steel after different degrees of pre-tension deformation Test results show that the fatigue crack propagation was augmented with the pre-tension deformation increase, especially the crack propagation at the near threshold section. The results of quantitative analysis show, the pre-tension deformation reduced the fatigue crack propagation threshold and increased the crack propagation coefficient; consequently the fatigue performance of the part of mechanical damnification was degenerate.

  Info
Periodical
Advanced Materials Research (Volumes 284-286)
Chapter
Iron and Steel
Edited by
Xiaoming Sang, Pengcheng Wang, Liqun Ai, Yungang Li and Jinglong Bu
Pages
1148-1151
DOI
10.4028/www.scientific.net/AMR.284-286.1148
Citation
M. B. Chen, Y. R. Jiang, "Fatigue Crack Propagation Analysis of X60 Pipeline Steel Pipelines with Defects", Advanced Materials Research, Vols. 284-286, pp. 1148-1151, 2011
Online since
July 2011
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Price
$32.00
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