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Author:

Luo, Sheji (Luo, Sheji.) | Liu, Ming (Liu, Ming.) | Zheng, Xinxia (Zheng, Xinxia.)

Indexed by:

EI SCIE Scopus Engineering Village

Abstract:

Characteristics and life expression of fatigue fracture of drill pipe steels for API G105 and S135 grade were investigated experimentally. S135 steel with higher tensile strength has higher fatigue strength and fatigue limit than that of G105 steel with lower tensile strength. A modified model for the S-N data, revealing the correlation between the fatigue life and fatigue limit, equivalent stress amplitude reflecting the effect of stress ratio, is suggested for predicting the fatigue damage. The fatigue limit and the fatigue strength coefficient are correlated to the tensile properties. The mechanism of the fatigue fracture was examined by scanning electron microscopy. © 2020 Elsevier Ltd

Keyword:

Drill pipe Drills Fatigue of materials Fracture Infill drilling Scanning electron microscopy Tensile strength

Author Community:

  • [ 1 ] [Luo, Sheji]School of Materials Science and Engineering, Xi'an Shiyou University, Xi'an; 710065, China
  • [ 2 ] [Liu, Ming]State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi'an Jiaotong University, Xi'an; 710049, China
  • [ 3 ] [Zheng, Xinxia]School of Science, Xi'an Shiyou University, Xi'an; 710065, China

Reprint Author's Address:

  • [Luo, Sheji]School of Materials Science and Engineering, Xi'an Shiyou University, Xi'an; 710065, China;;

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Source :

Engineering Failure Analysis

ISSN: 1350-6307

Year: 2020

Volume: 116

3 . 1 1 4

JCR@2020

3 . 1 1 4

JCR@2020

ESI Discipline: ENGINEERING;

ESI HC Threshold:59

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count: 5

SCOPUS Cited Count: 15

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 21

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