A geometric model for fatigue crack closure induced by fracture surface roughness

S. Suresh; R. O. Ritchie

doi:10.1007/bf02644803

Author(s)

S. Suresh
R. O. Ritchie

Detail(s)

Original language	English
Pages (from-to)	1627-1631
Journal / Publication	Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume	13
Issue number	9
Publication status	Published - Sept 1982
Externally published	Yes

Link(s)

DOI	DOI https://doi.org/10.1007/bf02644803 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-0020178058&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(eacb3b1c-b644-4587-b60b-a11f46622706).html

Abstract

Mechanisms for fatigue crack closure under plane strain conditions have recently been identified at very low (near-threshold) stress intensities in terms of effects of excess corrosion deposits or fracture surface roughness in promoting premature closure of the crack. In the present paper, a geometric model is presented for crack closure induced by fracture surface roughness. This model specifically addresses the contribution from both Mode I and Mode II crack tip displacements in addition to considering the nature of the fracture surface morphology. The implications of this model are briefly discussed in light of the roles of grain size, yield strength, microstructure, and crack size in influencing near-threshold fatigue behavior in engineering alloys.

Citation Format(s)

[ RIS ] [ BibTeX ]

A geometric model for fatigue crack closure induced by fracture surface roughness. / Suresh, S.; Ritchie, R. O.
In: Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, Vol. 13, No. 9, 09.1982, p. 1627-1631.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Suresh, S & Ritchie, RO 1982, 'A geometric model for fatigue crack closure induced by fracture surface roughness', Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, vol. 13, no. 9, pp. 1627-1631. https://doi.org/10.1007/bf02644803

Suresh, S., & Ritchie, R. O. (1982). A geometric model for fatigue crack closure induced by fracture surface roughness. Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, 13(9), 1627-1631. https://doi.org/10.1007/bf02644803

Suresh S, Ritchie RO. A geometric model for fatigue crack closure induced by fracture surface roughness. Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science. 1982 Sept;13(9):1627-1631. doi: 10.1007/bf02644803

Suresh, S. ; Ritchie, R. O. / A geometric model for fatigue crack closure induced by fracture surface roughness. In: Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science. 1982 ; Vol. 13, No. 9. pp. 1627-1631.