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

doi:10.1016/j.engfracmech.2009.09.004

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

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

School of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

In this paper, the relationship between the C_t and contour integrals for small-scale transient creep conditions is established, via elastic-creep finite element analysis. It is found that the C_t 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 language	English
Pages (from-to)	565-574
Number of pages	10
Journal	Engineering Fracture Mechanics
Volume	77
Issue number	3
DOIs	https://doi.org/10.1016/j.engfracmech.2009.09.004
Publication status	Published - 2010 Mar

Keywords

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

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/j.engfracmech.2009.09.004

Cite this

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title = "The relationship between Ct and contour integrals under small-scale transient creep",

abstract = "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.",

keywords = "C integral, C(t) integral, Contour integral, Finite element analysis",

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KW - C(t) integral

KW - Contour integral

KW - Finite element analysis

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