Development of a short-term failure assessment of high density polyethylene pipe welds - Application of the limit load analysis

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 101
  • Download : 0
In the US, the number of cases of subterranean water contamination from tritium leaking through a damaged buried nuclear power plant pipe continues to increase, and the degradation of the buried metal piping is emerging as a major issue. A pipe blocked from corrosion and/or degradation can lead to loss of cooling capacity in safety-related piping resulting in critical issues related to the safety and integrity of nuclear power plant operation. The ASME Boiler and Pressure Vessel Codes Committee (BPVC) has recently approved Code Case N-755 that describes the requirements for the use of polyethylene (PE) pipe for the construction of Section III, Division 1 Class 3 buried piping systems for service water applications in nuclear power plants. This paper contains tensile and slow crack growth (SCG) test results for high-density polyethylene (HDPE) pipe welds under the environmental conditions of a nuclear power plant. Based on these tests, the fracture surface of the PENT specimen was analyzed, and the fracture mechanisms of each fracture area were determined. Finally, by using 3D finite element analysis, limit loads of HDPE related to premature failure were verified.
Publisher
KOREAN SOC MECHANICAL ENGINEERS
Issue Date
2015-04
Language
English
Article Type
Article
Citation

TRANSACTIONS OF THE KOREAN SOCIETY OF MECHANICAL ENGINEERS, A, v.39, no.4, pp.405 - 413

ISSN
1226-4873
DOI
10.3795/KSME-A.2015.39.4.405
URI
http://hdl.handle.net/10203/204035
Appears in Collection
NE-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0