A Finite Element Analysis of a Crack Penetrating or Deflecting Into an Interface in a Thin Laminate
Author
Summary, in English
The crack tip driving force of a crack growing from a pre-crack that is perpendicular to and terminating at an interface between two materials is investigated using a linear fracture mechanics theory. The analysis is performed both for a crack penetrating the interface, growing straight ahead, and for a crack deflecting into the interface. The results from finite element calculations are compared with asymptotic solutions for infinitesimally small crack extensions. The solution is found to be accurate even for fairly large amounts of crack growth. Further, by comparing the crack tip driving force of the deflected crack with that of the penetrating crack, it is shown how to control the path of the crack by choosing the adhesion of the interface relative to the material toughness.
Department/s
Publishing year
2006
Language
English
Pages
173-178
Publication/Series
Key Engineering Materials
Volume
312
Links
Document type
Journal article
Publisher
Trans Tech Publications
Topic
- Mechanical Engineering
Keywords
- Adhesion
- Crack Tip Driving Force
- Deflecting
- Interface
- Penetrating
Status
Published
ISBN/ISSN/Other
- ISSN: 1013-9826