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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2020-01-01
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Series: | Advances in Materials Science and Engineering |
Online Access: | http://dx.doi.org/10.1155/2020/4058452 |
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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 |
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