![[Search]](/static/images/search.gif){kind=small}
![[A-Z Index]](/static/images/az.gif){kind=small}
![[Contact]](/static/images/contact.gif){kind=small}
![[University of Cambridge]](/static/images/identifier2.gif){kind=small}
![[Talks.cam]](/static/images/talkslogosmall.gif)
Professor Jean-Baptiste Leblond, Institut Jean Le Rond dāAlembert, Universite Pierre et Marie Curie (Paris VI), French Academy of Sciences
Friday 18 February 2011, 14:00-15:00
Crack front instability in mode i+iii: experimental and theoretical approaches
- š¤ Speaker: Professor Jean-Baptiste Leblond, Institut Jean Le Rond dāAlembert, Universite Pierre et Marie Curie (Paris VI), French Academy of Sciences
- š Date & Time: Friday 18 February 2011, 14:00 - 15:00
- š Venue: Oatley Seminar Room, Department of Engineering
Abstract
Experimental observations of crack front instability in mode I+III are first recalled. A theoretical linear stability analysis of the phenomenon is then presented. This analysis relies on (i) formulae providing the exact first-order expression of the local stress intensity factors along the front, after from some arbitrary perturbation of the surface and front of the crack; and (ii) a double criterion combining a Griffith-like condition and Goldstein and Salganikās principle of local symmetry. It is shown that the coplanar configuration of the crack is unstable when the ratio of the mode III to mode I unperturbed stress intensity factors exceeds a certain threshold depending on Poissonās ratio.
Series This talk is part of the Engineering - Mechanics and Materials Seminar Series series.
Included in Lists
- All Talks (aka the CURE list)
- bld31
- Cambridge talks
- Cambridge University Engineering Department Talks
- Centre for Smart Infrastructure & Construction
- Computational Continuum Mechanics Group Seminars
- Engineering - Mechanics and Materials Seminar Series
- Engineering - Mechanics, Materials and Design (Div C) - talks and events
- Featured lists
- Interested Talks
- Lennard-Jones Centre external
- Oatley Seminar Room, Department of Engineering
- School of Technology
- Trust & Technology Initiative - interesting events
- yk449
Note: Ex-directory lists are not shown.