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Volume 12
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10.3390/coatings12081222
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Article

Fatigue and Life Prediction of S135 High-Strength Drill Pipe Steel under Tension–Torsion Multiaxial Loading

by
Sheji Luo
1,
Ming Liu
2,*,
Lihong Han
3,* and
Yuna Xue
1
1
School of Materials Science and Engineering, Xi’an Shiyou University, Xi’an 710065, China
2
Center for Advancing Materials Performance from the Nanoscale (CAMP-Nano), State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an 710049, China
3
State Key Laboratory of Service Behavior and Structure Safety for Petroleum Tubular Goods and Equipment Material, CNPC Tubular Goods Research Institute, Xi’an 710077, China
*
Authors to whom correspondence should be addressed.
Coatings 2022, 12(8), 1222; https://doi.org/10.3390/coatings12081222
Submission received: 26 July 2022 / Revised: 17 August 2022 / Accepted: 19 August 2022 / Published: 21 August 2022
(This article belongs to the Topic Surface Treatments for Protecting from Fracture and Fatigue Damage)
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Abstract

This paper investigates the fatigue behavior of S135 high-strength drill pipe steel under tension–torsion multiaxial loading. Based on the concept of critical plane during fatigue, the fatigue model under the combined loading of tension–torsion is established. The proposed model is validated, and the predicted results are in good agreement with the experimental testing results. The maximum relative errors between the estimation and the experiment are mostly within the range of factor two to three for proportional, and 90° non-proportional tension–torsion loading. Meanwhile, the failure mechanism is also discussed through fracture analysis.
Keywords: fatigue; high-strength steel; prediction; multiaxial; tension–torsion fatigue; high-strength steel; prediction; multiaxial; tension–torsion

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MDPI and ACS Style

Luo, S.; Liu, M.; Han, L.; Xue, Y. Fatigue and Life Prediction of S135 High-Strength Drill Pipe Steel under Tension–Torsion Multiaxial Loading. Coatings 2022, 12, 1222. https://doi.org/10.3390/coatings12081222

AMA Style

Luo S, Liu M, Han L, Xue Y. Fatigue and Life Prediction of S135 High-Strength Drill Pipe Steel under Tension–Torsion Multiaxial Loading. Coatings. 2022; 12(8):1222. https://doi.org/10.3390/coatings12081222

Chicago/Turabian Style

Luo, Sheji, Ming Liu, Lihong Han, and Yuna Xue. 2022. "Fatigue and Life Prediction of S135 High-Strength Drill Pipe Steel under Tension–Torsion Multiaxial Loading" Coatings 12, no. 8: 1222. https://doi.org/10.3390/coatings12081222

APA Style

Luo, S., Liu, M., Han, L., & Xue, Y. (2022). Fatigue and Life Prediction of S135 High-Strength Drill Pipe Steel under Tension–Torsion Multiaxial Loading. Coatings, 12(8), 1222. https://doi.org/10.3390/coatings12081222

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