Predicting mixed mode crack initiation angles in anisotropic materials using the shape of the crack tip core region

Shafique M A Khan, Marwan Khraisheh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Accurate simulation of crack propagation paths in engineering materials is what designers and engineers are always looking for. An important element of any simulation package is to define a criterion for crack initiation angles. Many criteria have been proposed to predict crack initiation angles under mixed mode loading. Most of them assume either a constant radius or a Mises type variable radius for the core region at the crack tip. In a recent study, we presented a detailed analysis of the core region and showed strong dependence of mixed mode crack initiation angles on the shape of the core region. In addition, we proposed a criterion based on the shape of the crack tip core region for isotropic materials. Since most engineering materials are anisotropic, it is necessary to modify the criterion developed for isotropic materials. In this study, we investigate the shape of the core region at the crack tip in mixed mode loading for anisotropic materials under different loading conditions. We employ isotropic linear elastic stress field along with Hill's anisotropic yield criterion at the crack tip and examine the effect of anisotropy on the shape of the core region and its relation to crack initiation angles.

Original languageEnglish
Title of host publicationAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
EditorsD. Moinereau
Pages105-113
Number of pages9
Volume443
Edition2
DOIs
Publication statusPublished - 2002
Externally publishedYes
EventFatigue, Fracture and Damage Analysis -2002- (2002 ASME Prssure Vessels and Piping Conference) - Vancouver, BC, Canada
Duration: 5 Aug 20029 Aug 2002

Other

OtherFatigue, Fracture and Damage Analysis -2002- (2002 ASME Prssure Vessels and Piping Conference)
CountryCanada
CityVancouver, BC
Period5/8/029/8/02

Fingerprint

Crack initiation
Crack tips
Crack propagation
Anisotropy
Engineers

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

Cite this

Khan, S. M. A., & Khraisheh, M. (2002). Predicting mixed mode crack initiation angles in anisotropic materials using the shape of the crack tip core region. In D. Moinereau (Ed.), American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP (2 ed., Vol. 443, pp. 105-113) https://doi.org/10.1115/PVP2002-1357

Predicting mixed mode crack initiation angles in anisotropic materials using the shape of the crack tip core region. / Khan, Shafique M A; Khraisheh, Marwan.

American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP. ed. / D. Moinereau. Vol. 443 2. ed. 2002. p. 105-113.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Khan, SMA & Khraisheh, M 2002, Predicting mixed mode crack initiation angles in anisotropic materials using the shape of the crack tip core region. in D Moinereau (ed.), American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP. 2 edn, vol. 443, pp. 105-113, Fatigue, Fracture and Damage Analysis -2002- (2002 ASME Prssure Vessels and Piping Conference), Vancouver, BC, Canada, 5/8/02. https://doi.org/10.1115/PVP2002-1357
Khan SMA, Khraisheh M. Predicting mixed mode crack initiation angles in anisotropic materials using the shape of the crack tip core region. In Moinereau D, editor, American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP. 2 ed. Vol. 443. 2002. p. 105-113 https://doi.org/10.1115/PVP2002-1357
Khan, Shafique M A ; Khraisheh, Marwan. / Predicting mixed mode crack initiation angles in anisotropic materials using the shape of the crack tip core region. American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP. editor / D. Moinereau. Vol. 443 2. ed. 2002. pp. 105-113
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