Frictional contact induced crack initiation in incompressible substrate

Surface crack initiation in an incompressible substrate induced through frictional fretting contact is analyzed using an energy-based fracture mechanics model. A closed-form energy release rate for surface crack initiation at the contact boundary has been derived with the crack growth angle determin...

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Bibliographic Details
Published in:Engineering fracture mechanics 2011-12, Vol.78 (17), p.2947-2956
Main Authors: Xie, Y.J., Hu, X.Z., Wang, X.H.
Format: Article
Language:English
Subjects:
Contact
Contact stresses
Crack initiation
Energy release rate
Exact sciences and technology
Fracture
Fracture mechanics
Fracture mechanics (crack, fatigue, damage...)
Friction
Fundamental areas of phenomenology (including applications)
Indentation
Indentation stress intensity factor
Loads (forces)
Mechanical contact (friction...)
Physics
Rock cutting
Solid mechanics
Structural and continuum mechanics
Surface cracks
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Summary:Surface crack initiation in an incompressible substrate induced through frictional fretting contact is analyzed using an energy-based fracture mechanics model. A closed-form energy release rate for surface crack initiation at the contact boundary has been derived with the crack growth angle determined by the mixed mode singular stress field at the contact edge. The driving forces in the form of J i -integral, the critical energy release rate and the critical load for crack initiation from the crack free surface have been formulated. The relations between the friction coefficient and crack initiation angle, critical load have been specified.
ISSN:0013-7944
1873-7315
DOI:10.1016/j.engfracmech.2011.08.012