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Failure Assessment Diagrams of Semi-Elliptical Surface Crack with Constraint Effect

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Abstract:

For accurate failure assessment, a second parameter like T-stress describing the constraint is needed in addition to the single parameter J-integral. In this work, selecting the structures of surface-cracked plate and pipe, we perform line-spring finite element modeling, and accompanying elastic-plastic finite element analyses. We then present a framework, which includes the constraint effects in the R6 FAD approach for failure assessment of cracked-structures.

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Periodical:

Key Engineering Materials (Volumes 353-358)

Pages:

98-101

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.353-358.98

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Cite this paper

Online since:

September 2007

Authors:

Hyung Yil Lee, Jin Haeng Lee, Tae Hyung Kim

Keywords:

Constraint, Failure Assessment Curve, Failure Assessment Diagram, Ĵ-Integral, Line-Spring Finite Element, Semi-Elliptical Surface Crack, T Stress

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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References

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