Abstract
In this paper, a simple and efficient iterative algorithm is adopted to model crack closure and sliding with the displacement discontinuity method (DDM). The problem of a subsurface crack in a half-plane under indentation loading considered by Elvin and Leung (Elvin N, Leung C. A fast iterative boundary element method for solving closed crack problems. Engng Fract Mech 1999;63:631-48) and DeBremaecker and Ferris (DeBremaecker J-Cl, Ferris MC. A comparison of two algorithm for solving closed crack problems. Engng Fract Mech 2000;66:601-05) is reexamined using the iterative DDM. The cases of a partially closed crack with both frictionless and frictional contacts are considered. Benchmark results for the stress intensity factors and the interfacial crack mechanisms for a subsurface crack are presented and compared with the results obtained from the fast iterative algorithm of Elvin and Leung and those from the PATH algorithm of DeBremaecker and Ferris.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 128-135 |
| Number of pages | 8 |
| Journal | Engineering Fracture Mechanics |
| Volume | 75 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 2008 |
Keywords
- Crack closure and sliding
- Interfacial crack mechanism
- Iterative displacement discontinuity method
- Subsurface crack
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