A method of J testing based on crack opening displacement for circumferential through-wall cracked pipes under combined tension and bending

Nam Su Huh, Ludwig Stumpfrock, Eberhard Roos, Yun-Jae Kim, Young Jin Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Application of the leak-before-break concept to nuclear piping requires accurate fracture mechanics assessment on pipes with postulated circumferential through-wall crack subject to combined tension and bending. One important element is determination of relevant J-resistance curve for pipes under combined loading. This paper provides experimental J estimation method for the circumferential through-wall cracked pipe under combined tension and bending, based on the load-crack opening displacement (COD) record to estimate J-resistance curve. To give confidence in the proposed method, the J results from detailed elastic-plastic finite element (FE) analysis are also compared with estimated J based not only on proposed method but also on conventional method using load-load line displacement, which shows that estimated J based on the proposed method provides reliable J estimates regardless of analysis condition, on the other hand, the conventional method using the load-load line displacement record gives erroneous results for shallow cracks.

Original languageEnglish
Title of host publicationDiffusion and Defect Data Pt.B: Solid State Phenomena
Pages63-70
Number of pages8
Volume110
DOIs
Publication statusPublished - 2006 Dec 1
EventInternational Symposium on Safety and Structural Integrity - Singapore, Singapore
Duration: 2005 Jan 172005 Jan 20

Publication series

NameDiffusion and Defect Data Pt.B: Solid State Phenomena
Volume110
ISSN (Print)10120394

Other

OtherInternational Symposium on Safety and Structural Integrity
CountrySingapore
CitySingapore
Period05/1/1705/1/20

Fingerprint

crack opening displacement
Pipe
Cracks
Testing
Fracture mechanics
cracks
fracture mechanics
Plastics
Finite element method
curves
estimates
confidence
plastics

Keywords

  • Circumferential through-wall cracked pipe
  • Combined tension and bending
  • Crack opening displacement
  • J testing
  • Plastic η-factor

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy (miscellaneous)
  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Huh, N. S., Stumpfrock, L., Roos, E., Kim, Y-J., & Kim, Y. J. (2006). A method of J testing based on crack opening displacement for circumferential through-wall cracked pipes under combined tension and bending. In Diffusion and Defect Data Pt.B: Solid State Phenomena (Vol. 110, pp. 63-70). (Diffusion and Defect Data Pt.B: Solid State Phenomena; Vol. 110). https://doi.org/10.4028/3-908451-15-9.63

A method of J testing based on crack opening displacement for circumferential through-wall cracked pipes under combined tension and bending. / Huh, Nam Su; Stumpfrock, Ludwig; Roos, Eberhard; Kim, Yun-Jae; Kim, Young Jin.

Diffusion and Defect Data Pt.B: Solid State Phenomena. Vol. 110 2006. p. 63-70 (Diffusion and Defect Data Pt.B: Solid State Phenomena; Vol. 110).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Huh, NS, Stumpfrock, L, Roos, E, Kim, Y-J & Kim, YJ 2006, A method of J testing based on crack opening displacement for circumferential through-wall cracked pipes under combined tension and bending. in Diffusion and Defect Data Pt.B: Solid State Phenomena. vol. 110, Diffusion and Defect Data Pt.B: Solid State Phenomena, vol. 110, pp. 63-70, International Symposium on Safety and Structural Integrity, Singapore, Singapore, 05/1/17. https://doi.org/10.4028/3-908451-15-9.63
Huh NS, Stumpfrock L, Roos E, Kim Y-J, Kim YJ. A method of J testing based on crack opening displacement for circumferential through-wall cracked pipes under combined tension and bending. In Diffusion and Defect Data Pt.B: Solid State Phenomena. Vol. 110. 2006. p. 63-70. (Diffusion and Defect Data Pt.B: Solid State Phenomena). https://doi.org/10.4028/3-908451-15-9.63
Huh, Nam Su ; Stumpfrock, Ludwig ; Roos, Eberhard ; Kim, Yun-Jae ; Kim, Young Jin. / A method of J testing based on crack opening displacement for circumferential through-wall cracked pipes under combined tension and bending. Diffusion and Defect Data Pt.B: Solid State Phenomena. Vol. 110 2006. pp. 63-70 (Diffusion and Defect Data Pt.B: Solid State Phenomena).
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