Fracture dynamics analysis of mode III interface moving crack on functionally graded coating

X. G. Li, Z. Y. Chen, Z. Q. Wang, N. C. Lü, Li Min Zhou

Research output: Journal article publicationJournal articleAcademic researchpeer-review

1 Citation (Scopus)

Abstract

The interface moving crack between the functionally graded coating and infinite substrate structure with free boundary is investigated in this paper. By application of the interface bonding conditions of the two media, all the quantities have been represented by means of a single unknown function. With the help of the exponent model of the shear modulus and density, the dual integral equation of moving crack problem is obtained by Fourier transform. The displacement is expanded into series form using Jacob Polynomial, and then the semi-analytic solution of dynamic stress intensity factor is derived by Schmidt method. Dynamic stress intensity factor is influenced by those parameters such as crack velocity, graded parameter and coating height.
Original languageEnglish
Pages (from-to)356-362
Number of pages7
JournalFatigue and Fracture of Engineering Materials and Structures
Volume34
Issue number5
DOIs
Publication statusPublished - 1 May 2011

Keywords

  • dual integral equations
  • dynamic stress intensity factor
  • functionally graded coating
  • interface moving crack
  • Schmidt method

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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