The effect of the crack tip core region on the crack initiation angles under mixed mode loading

Shafique M A Khan, Marwan Khraisheh

Research output: Chapter in Book/Report/Conference proceedingChapter

2 Citations (Scopus)

Abstract

The problem of determining the crack initiation angles under mixed mode loading is still under discussion. The subject is of great interest to researchers in the field of fracture mechanics, especially in predicting crack propagation paths. Using LEFM approach, several criteria have been proposed in this respect, all of which assume a core region at the crack tip. The reason for defining the core region is that the exact stress and strain fields at the crack tip vicinity cannot be determined using LEFM. Some criteria assume a core region of constant radius while others use a variable radius. Although many studies have been directed towards understanding the nature of the core region, however, no or little efforts have been made to correlate the size and shape of the core region to the crack initiation angles. Furthermore, the effect of the core region on crack initiation angles under different loading conditions has not been thoroughly investigated. In this study, the characteristics of the core region and their influence on mixed mode crack initiation angles will be closely examined under different loading conditions. The results clearly show that there is a well-defined correlation between the shape of the core region and the crack initiation angles as predicted by most available criteria.

Original languageEnglish
Title of host publicationAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Pages45-50
Number of pages6
Volume404
Publication statusPublished - 2000
Externally publishedYes

Fingerprint

Crack initiation
Crack tips
Fracture mechanics
Crack propagation

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Mechanical Engineering

Cite this

Khan, S. M. A., & Khraisheh, M. (2000). The effect of the crack tip core region on the crack initiation angles under mixed mode loading. In American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP (Vol. 404, pp. 45-50)

The effect of the crack tip core region on the crack initiation angles under mixed mode loading. / Khan, Shafique M A; Khraisheh, Marwan.

American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP. Vol. 404 2000. p. 45-50.

Research output: Chapter in Book/Report/Conference proceedingChapter

Khan, SMA & Khraisheh, M 2000, The effect of the crack tip core region on the crack initiation angles under mixed mode loading. in American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP. vol. 404, pp. 45-50.
Khan SMA, Khraisheh M. The effect of the crack tip core region on the crack initiation angles under mixed mode loading. In American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP. Vol. 404. 2000. p. 45-50
Khan, Shafique M A ; Khraisheh, Marwan. / The effect of the crack tip core region on the crack initiation angles under mixed mode loading. American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP. Vol. 404 2000. pp. 45-50
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