On thermofracture behaviour of leaking thin-wall pipes

The finite element method is used to assess the fracture behaviour of thin-wall pipes involving leaking through-line cracks. The thermal effect due to the throttling process of leakage of the pressurized medium in the pipe is considered in the analysis. The fracture behaviour of the pipe is characte...

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Bibliographic Details
Published in:The International journal of pressure vessels and piping 1986, Vol.24 (4), p.269-281
Main Authors: Hsu, T.R., Chen, G.G., Gong, Z.L., Sun, N.S.
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Mechanical engineering. Machine design
Pipings, valves, fittings
Steel design
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Summary:The finite element method is used to assess the fracture behaviour of thin-wall pipes involving leaking through-line cracks. The thermal effect due to the throttling process of leakage of the pressurized medium in the pipe is considered in the analysis. The fracture behaviour of the pipe is characterized by J- integrals modified to incorporate the above thermal effect. The analytical procedure described in this paper can be used to predict the critical loading conditions for runaway cracks in leaking pipelines.
ISSN:0308-0161
1879-3541
DOI:10.1016/0308-0161(86)90002-5