Behavior of a fluid filled subsurface crack under moving hertzian loading

Xiaoqing Jin*, Leon M Keer, Q Jane Wang

*Corresponding author for this work

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

Abstract

Cracking of a fluid filled subsurface crack is studied by the distributed dislocation technique within the framework of two-dimensional linear elastic fracture mechanics. The opening volume of the horizontal Griffith crack is fully occupied by an incompressible fluid. In the presence of friction, a moving Hertzian line contact load is applied at the surface of the half plane. The induced hydrostatic fluid pressure inside the crack is calculated through an iterative scheme with the restriction that due to the fluid incompressibility there is no change of the crack-opening volume (COV). The stress intensity factors at the tips of the fluid filled crack are analyzed and the effective quadrature formulae are given for the evaluation of the COV. A hypothesis is introduced that the crack propagation is initiated when the elastic strain energy release rate reaches the critical fracture toughness and is arrested when the energy release rate is below the arrest toughness. Based on the energy criterion, predictions will be attempted for determining the load position where the crack propagation/kink commences as well as the growth increment of the branch crack before it is arrested. A step-by-step crack path is constructed for various loading conditions.

Original languageEnglish (US)
Title of host publication2007 Proceedings of the ASME/STLE International Joint Tribology Conference, IJTC 2007
Pages629-631
Number of pages3
VolumePART A
DOIs
StatePublished - May 16 2008
Event2007 ASME/STLE International Joint Tribology Conference, IJTC 2007 - San Diego, CA, United States
Duration: Oct 22 2007Oct 24 2007

Other

Other2007 ASME/STLE International Joint Tribology Conference, IJTC 2007
CountryUnited States
CitySan Diego, CA
Period10/22/0710/24/07

ASJC Scopus subject areas

  • Mechanical Engineering
  • Surfaces, Coatings and Films
  • Condensed Matter Physics
  • Surfaces and Interfaces

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  • Cite this

    Jin, X., Keer, L. M., & Wang, Q. J. (2008). Behavior of a fluid filled subsurface crack under moving hertzian loading. In 2007 Proceedings of the ASME/STLE International Joint Tribology Conference, IJTC 2007 (Vol. PART A, pp. 629-631) https://doi.org/10.1115/IJTC2007-44449