Tensile Fracture Behavior of Corroded Pipeline: Part 1—Experimental Characterization

The understanding of the axial tensile behavior of environmentally corroded pipelines is of great significance for the design, maintenance, and evaluation of such structures. This article presents some experimental data recorded from 210 tensile tests on pipe, which were corroded from grade of 10% t...

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Main Authors: Yuchao Yang, Feng Liu, Feng Xi
Format: Article
Language:English
Published: Hindawi Limited 2020-01-01
Series:Advances in Materials Science and Engineering
Online Access:http://dx.doi.org/10.1155/2020/4058452
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spelling doaj-8cbaa58a765a45a0bcf8c9a387b01e112020-11-25T01:46:21ZengHindawi LimitedAdvances in Materials Science and Engineering1687-84341687-84422020-01-01202010.1155/2020/40584524058452Tensile Fracture Behavior of Corroded Pipeline: Part 1—Experimental CharacterizationYuchao Yang0Feng Liu1Feng Xi2Shandong University of Science and Technology, Shandong Provincial Key Laboratory of Civil Engineering Disaster Prevention and Mitigation, Qingdao 266590, ChinaShandong University of Science and Technology, Shandong Provincial Key Laboratory of Civil Engineering Disaster Prevention and Mitigation, Qingdao 266590, ChinaSchool of Civil Engineering, Shandong Jianzhu University, Jinan 250101, ChinaThe understanding of the axial tensile behavior of environmentally corroded pipelines is of great significance for the design, maintenance, and evaluation of such structures. This article presents some experimental data recorded from 210 tensile tests on pipe, which were corroded from grade of 10% to 70% by electrochemical accelerated corrosion method. The fracture modes show that, for the uncorroded pipe, the fracture frequently occurs in the middle of the specimen and then propagates perpendicular to the loading direction. However, for the corroded pipe, the crack’s position, evolution angle, and path have strong randomness. The comparative analysis based on the macroscopic stress-strain relationship shows that the rapid decrease of the yield stress, ultimate strength, and strain at the fracture for corroded pipe are correlated with the fracture patterns; i.e., the fracture patterns of pipe are changed from uniform to scattered with the continuous increase of the corrosion rate. The reduction factor based on experimental data is recommended for the consideration of the corrosion effect on the tensile strength of the steel pipe. Discussion on the tensile capacity during the service time is also presented.http://dx.doi.org/10.1155/2020/4058452
collection DOAJ
language English
format Article
sources DOAJ
author Yuchao Yang
Feng Liu
Feng Xi
spellingShingle Yuchao Yang
Feng Liu
Feng Xi
Tensile Fracture Behavior of Corroded Pipeline: Part 1—Experimental Characterization
Advances in Materials Science and Engineering
author_facet Yuchao Yang
Feng Liu
Feng Xi
author_sort Yuchao Yang
title Tensile Fracture Behavior of Corroded Pipeline: Part 1—Experimental Characterization
title_short Tensile Fracture Behavior of Corroded Pipeline: Part 1—Experimental Characterization
title_full Tensile Fracture Behavior of Corroded Pipeline: Part 1—Experimental Characterization
title_fullStr Tensile Fracture Behavior of Corroded Pipeline: Part 1—Experimental Characterization
title_full_unstemmed Tensile Fracture Behavior of Corroded Pipeline: Part 1—Experimental Characterization
title_sort tensile fracture behavior of corroded pipeline: part 1—experimental characterization
publisher Hindawi Limited
series Advances in Materials Science and Engineering
issn 1687-8434
1687-8442
publishDate 2020-01-01
description The understanding of the axial tensile behavior of environmentally corroded pipelines is of great significance for the design, maintenance, and evaluation of such structures. This article presents some experimental data recorded from 210 tensile tests on pipe, which were corroded from grade of 10% to 70% by electrochemical accelerated corrosion method. The fracture modes show that, for the uncorroded pipe, the fracture frequently occurs in the middle of the specimen and then propagates perpendicular to the loading direction. However, for the corroded pipe, the crack’s position, evolution angle, and path have strong randomness. The comparative analysis based on the macroscopic stress-strain relationship shows that the rapid decrease of the yield stress, ultimate strength, and strain at the fracture for corroded pipe are correlated with the fracture patterns; i.e., the fracture patterns of pipe are changed from uniform to scattered with the continuous increase of the corrosion rate. The reduction factor based on experimental data is recommended for the consideration of the corrosion effect on the tensile strength of the steel pipe. Discussion on the tensile capacity during the service time is also presented.
url http://dx.doi.org/10.1155/2020/4058452
work_keys_str_mv AT yuchaoyang tensilefracturebehaviorofcorrodedpipelinepart1experimentalcharacterization
AT fengliu tensilefracturebehaviorofcorrodedpipelinepart1experimentalcharacterization
AT fengxi tensilefracturebehaviorofcorrodedpipelinepart1experimentalcharacterization
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