Stress Triaxial Constraint and Fracture Toughness Properties of X90 Pipeline Steel

The X90 pipeline steel with high-strength and high-toughness become the most popular pipeline steel. Due to the stress triaxial constraint and fracture toughness properties are the key factors for the stable work of pipeline steel, the research on the fracture toughness of X90 is a great significanc...

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Main Authors: Peng Wang, Wenqian Hao, Jiamiao Xie, Fang He, Fenghui Wang, Chunyong Huo
Format: Article
Language:English
Published: MDPI AG 2022-01-01
Series:Metals
Subjects:
Online Access:https://www.mdpi.com/2075-4701/12/1/72
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author Peng Wang
Wenqian Hao
Jiamiao Xie
Fang He
Fenghui Wang
Chunyong Huo
author_facet Peng Wang
Wenqian Hao
Jiamiao Xie
Fang He
Fenghui Wang
Chunyong Huo
author_sort Peng Wang
collection DOAJ
description The X90 pipeline steel with high-strength and high-toughness become the most popular pipeline steel. Due to the stress triaxial constraint and fracture toughness properties are the key factors for the stable work of pipeline steel, the research on the fracture toughness of X90 is a great significance to promote the engineering application of high-strength pipeline steel. In order to investigate the stress triaxial constraint and fracture toughness properties of X90 pipeline steel, the experimental rules with different grooves size are proposed using the common toughness experiment and the corresponding numerical models are established in this paper. The resistance curves and fracture toughness of each type of specimens are obtained and compared with that of finite element analysis. Furthermore, the stress distribution, J-integral distribution and stress triaxial constraint of the specimen are analyzed, as well as the influence of side grooves size on the determination of fracture toughness is also discussed. The results obtained from the study will provide a reference to the fracture toughness evaluation research and application of X90 pipeline steel.
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spelling doaj.art-c74e79d640e549f6a414f032fab945e32023-11-23T14:41:53ZengMDPI AGMetals2075-47012022-01-011217210.3390/met12010072Stress Triaxial Constraint and Fracture Toughness Properties of X90 Pipeline SteelPeng Wang0Wenqian Hao1Jiamiao Xie2Fang He3Fenghui Wang4Chunyong Huo5Bi-Inspired and Advanced Energy Research Center, Department of Engineering Mechanics, Northwestern Polytechnical University, Xi’an 710129, ChinaThe College of Mechatronic Engineering, North University of China, Taiyuan 030051, ChinaThe College of Mechatronic Engineering, North University of China, Taiyuan 030051, ChinaBi-Inspired and Advanced Energy Research Center, Department of Engineering Mechanics, Northwestern Polytechnical University, Xi’an 710129, ChinaBi-Inspired and Advanced Energy Research Center, Department of Engineering Mechanics, Northwestern Polytechnical University, Xi’an 710129, ChinaTubular Goods Research Institute, China National Petroleum Corporation, Xi’an 710065, ChinaThe X90 pipeline steel with high-strength and high-toughness become the most popular pipeline steel. Due to the stress triaxial constraint and fracture toughness properties are the key factors for the stable work of pipeline steel, the research on the fracture toughness of X90 is a great significance to promote the engineering application of high-strength pipeline steel. In order to investigate the stress triaxial constraint and fracture toughness properties of X90 pipeline steel, the experimental rules with different grooves size are proposed using the common toughness experiment and the corresponding numerical models are established in this paper. The resistance curves and fracture toughness of each type of specimens are obtained and compared with that of finite element analysis. Furthermore, the stress distribution, J-integral distribution and stress triaxial constraint of the specimen are analyzed, as well as the influence of side grooves size on the determination of fracture toughness is also discussed. The results obtained from the study will provide a reference to the fracture toughness evaluation research and application of X90 pipeline steel.https://www.mdpi.com/2075-4701/12/1/72X90 pipeline steelstress triaxial constraintfracture toughnessfatigue crackside groovesJ-integral
spellingShingle Peng Wang
Wenqian Hao
Jiamiao Xie
Fang He
Fenghui Wang
Chunyong Huo
Stress Triaxial Constraint and Fracture Toughness Properties of X90 Pipeline Steel
Metals
X90 pipeline steel
stress triaxial constraint
fracture toughness
fatigue crack
side grooves
J-integral
title Stress Triaxial Constraint and Fracture Toughness Properties of X90 Pipeline Steel
title_full Stress Triaxial Constraint and Fracture Toughness Properties of X90 Pipeline Steel
title_fullStr Stress Triaxial Constraint and Fracture Toughness Properties of X90 Pipeline Steel
title_full_unstemmed Stress Triaxial Constraint and Fracture Toughness Properties of X90 Pipeline Steel
title_short Stress Triaxial Constraint and Fracture Toughness Properties of X90 Pipeline Steel
title_sort stress triaxial constraint and fracture toughness properties of x90 pipeline steel
topic X90 pipeline steel
stress triaxial constraint
fracture toughness
fatigue crack
side grooves
J-integral
url https://www.mdpi.com/2075-4701/12/1/72
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