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- Title
Experimental investigation of crack growth direction in multiple cracks.
- Authors
GOPE, P. C.; THAKUR, A.
- Abstract
ABSTRACT In this paper, the interaction between multiple cracks in crack growth direction is studied in an aluminium alloy under static and fatigue loading. Self similar as well as non-self-similar crack growth has been observed which depends on the relative crack positions defined by crack offset distance and crack tip distance. On the basis of experimental observations, the criterion for crack coalescence and crack growth direction are expressed in terms of the crack positions defined by crack offset and crack tip distances. The criterion presented in this study can be used to determine the limiting value of crack tip and crack offset distance and to determine the mode in which cracks coalesce during their growth process. Experimental results and crack interaction criterion presented under various crack positions and size conditions could be used to derive a new evaluation method of crack growth in multiple crack geometry.
- Subjects
CRACKING process (Petroleum industry); ALUMINUM alloys; DEAD loads (Mechanics); GEOMETRY; LIGHT metal alloys
- Publication
Fatigue & Fracture of Engineering Materials & Structures, 2011, Vol 34, Issue 10, p804
- ISSN
8756-758X
- Publication type
Article
- DOI
10.1111/j.1460-2695.2011.01574.x