Open AccessInteraction factors for two elliptical embedded cracks with a wide range of aspect ratios
Author(s) -
Kisaburo Azuma,
Yinsheng Li
Publication year - 2017
Publication title -
aims materials science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.367
H-Index - 16
eISSN - 2372-0484
pISSN - 2372-0468
DOI - 10.3934/matersci.2017.2.328
Subject(s) - dimensionless quantity , aspect ratio (aeronautics) , tension (geology) , materials science , range (aeronautics) , finite element method , interaction , mechanics , interaction model , shape factor , geometry , structural engineering , composite material , physics , mathematics , engineering , computer science , statistics , world wide web , ultimate tensile strength
The value of stress intensity factor may be increased through the interaction of multiple cracks that are in close proximity to one another. We investigated the interaction factors of two equal elliptical cracks with a wide range of aspect ratios. Finite element analysis for a linear elastic solid was used to obtain the interaction factor for embedded cracks in an infinite model subjected to remote tension loading. Relationships between interaction factors and dimensionless distances between the cracks were discussed. The results demonstrated that the interaction factors depend on the crack aspect ratio, whose effect is related to the dimensionless distance. Thus, it is suggested that interaction factors can be reasonably characterized using different dimensionless distances depending on the aspect ratio. Finally, we provide a simple empirical formula for obtaining the interaction factors for embedded cracks