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- Title
Fracture dynamics analysis of mode III interface moving crack on functionally graded coating.
- Authors
LI, X. G.; CHEN, Z. Y.; WANG, Z. Q.; LÜ, N. C.; ZHOU, L. M.
- 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.
- Subjects
INTEGRAL equations; STRAINS &; stresses (Mechanics); FRACTURE mechanics; ACCELERATION (Mechanics); DENSITY; SURFACE coatings; POLYNOMIALS
- Publication
Fatigue & Fracture of Engineering Materials & Structures, 2011, Vol 34, Issue 5, p356
- ISSN
8756-758X
- Publication type
Article
- DOI
10.1111/j.1460-2695.2010.01525.x