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 language | English |
|---|---|
| Pages (from-to) | 356-362 |
| Number of pages | 7 |
| Journal | Fatigue and Fracture of Engineering Materials and Structures |
| Volume | 34 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 1 May 2011 |
Keywords
- dual integral equations
- dynamic stress intensity factor
- functionally graded coating
- interface moving crack
- Schmidt method
ASJC Scopus subject areas
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering