The relationship between Ct and contour integrals under small-scale transient creep

Chang Sik Oh, Yun Jae Kim, Kee Bong Yoon, Robert A. Ainsworth, Kamran Nikbin

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


In this paper, the relationship between the Ct and contour integrals for small-scale transient creep conditions is established, via elastic-creep finite element analysis. It is found that the Ct integral is similar to the contour integral value evaluated roughly at the creep zone size defined as the boundaries where time-dependent effective creep strains equal the instantaneous effective elastic strains and measured normal to the crack plane at the crack tip.

Original languageEnglish
Pages (from-to)565-574
Number of pages10
JournalEngineering Fracture Mechanics
Issue number3
Publication statusPublished - 2010 Mar
Externally publishedYes


  • C integral
  • C(t) integral
  • Contour integral
  • Finite element analysis

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering


Dive into the research topics of 'The relationship between C<sub>t</sub> and contour integrals under small-scale transient creep'. Together they form a unique fingerprint.

Cite this