✦ LIBER ✦
The relationship between Ct and contour integrals under small-scale transient creep
✍ Scribed by Chang-Sik Oh; Yun-Jae Kim; Kee-Bong Yoon; Robert A. Ainsworth; Kamran Nikbin
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 762 KB
- Volume
- 77
- Category
- Article
- ISSN
- 0013-7944
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✦ Synopsis
a b s t r a c t
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.