Study of Strain Capacity for High-Strain Marine Pipe

In this paper, a strain capacity assessment on high-strain marine pipe was carried out by comparing the crack growth driving force and the crack growth resistance. The crack growth driving force was given by FEA, the stress-stain relationship was given by a DIC tensile test, and the crack growth res...

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Bibliographic Details
Published in:Materials 2022-08, Vol.15 (16), p.5793
Main Authors: Yang, Kun, Sha, Ting, Gao, Xiongxiong, Chen, Hongyuan, Chi, Qiang, Ji, Lingkang
Format: Article
Language:English
Subjects:
Crack propagation
Deformation
Engineering
Finite element method
Full scale tests
Load
Pipes
Stress-strain curves
Tensile tests
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Summary:In this paper, a strain capacity assessment on high-strain marine pipe was carried out by comparing the crack growth driving force and the crack growth resistance. The crack growth driving force was given by FEA, the stress-stain relationship was given by a DIC tensile test, and the crack growth resistance was given by a single-edge notched tensile (SENT) test using a single-specimen flexibility method. The proposed approach was compared with the failure assessment curve and validated against full-scale tests with a girth weld notch. The results of the full-scale tests showed that the assessment method using FEA was more accurate and the result of the failure assessment curve assessment was more conservative.
ISSN:1996-1944
1996-1944
DOI:10.3390/ma15165793