Failure Assessment for the High-Strength Pipelines with Constant-Depth Circumferential Surface Cracks
Joint Authors
Liu, X.
Lu, Z. X.
Chen, Y.
Sui, Y. L.
Dai, L. H.
Source
Advances in Materials Science and Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-02-18
Country of Publication
Egypt
No. of Pages
11
Abstract EN
In the oil and gas transportation system over long distance, application of high-strength pipeline steels can efficiently reduce construction and operation cost by increasing operational pressure and reducing the pipe wall thickness.
Failure assessment is an important issue in the design, construction, and maintenance of the pipelines.
The small circumferential surface cracks with constant depth in the welded pipelines are of practical interest.
This work provides an engineering estimation procedure based upon the GE/EPRI method to determine the J-integral for the thin-walled pipelines with small constant-depth circumferential surface cracks subject to tension and bending loads.
The values of elastic influence functions for stress intensity factor and plastic influence functions for fully plastic J-integral estimation are derived in tabulated forms through a series of three-dimensional finite element calculations for different crack geometries and material properties.
To check confidence of the J-estimation solution in practical application, J-integral values obtained from detailed finite element (FE) analyses are compared with those estimated from the new influence functions.
Excellent agreement of FE results with the proposed J-estimation solutions for both tension and bending loads indicates that the new solutions can be applied for accurate structural integrity assessment of high-strength pipelines with constant-depth circumferential surface cracks.
American Psychological Association (APA)
Liu, X.& Lu, Z. X.& Chen, Y.& Sui, Y. L.& Dai, L. H.. 2018. Failure Assessment for the High-Strength Pipelines with Constant-Depth Circumferential Surface Cracks. Advances in Materials Science and Engineering،Vol. 2018, no. 2018, pp.1-11.
https://search.emarefa.net/detail/BIM-1119984
Modern Language Association (MLA)
Liu, X.…[et al.]. Failure Assessment for the High-Strength Pipelines with Constant-Depth Circumferential Surface Cracks. Advances in Materials Science and Engineering No. 2018 (2018), pp.1-11.
https://search.emarefa.net/detail/BIM-1119984
American Medical Association (AMA)
Liu, X.& Lu, Z. X.& Chen, Y.& Sui, Y. L.& Dai, L. H.. Failure Assessment for the High-Strength Pipelines with Constant-Depth Circumferential Surface Cracks. Advances in Materials Science and Engineering. 2018. Vol. 2018, no. 2018, pp.1-11.
https://search.emarefa.net/detail/BIM-1119984
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1119984