Gradient damage models and brittle fracture: crack nucleation and complex patterns

Add to your list(s) Download to your calendar using vCal

• Corrado Maurini, Université Pierre et Marie Curie Paris VI
• Thursday 15 January 2015, 11:30-12:30
• Open Plan Area, BP Institute, Madingley Rise CB3 0EZ.

If you have a question about this talk, please contact Chris Richardson.

The classical theory of fracture mechanics developed in the last century is very successful in stating the non-propagation conditions for pre-existing cracks, or to study their propagation along pre-assigned paths. However, the theoretical modelling and the predictive numerical simulation of crack nucleation and the emergence of complex crack patterns is still an open research subject. In the last years, variational approaches to fracture opened new perspectives, by formulating fracture mechanics as an energy minimisation problem where the crack path is treated as genuine unknown. In this talk I will discuss about the use of gradient damage models as a phase-field regularised formulation of brittle fracture. Reporting the results of theoretical analyses and numerical experiments, I will show how similar models can retrieve crack nucleation, crack propagation, and the morphogenesis of complex crack patterns in 2D or 3D. Examples will include thermal shock fracture in ceramics and thin-film cracks.

This talk is part of the Institute for Energy and Environmental Flows (IEEF) series.

This talk is included in these lists:

• All Talks (aka the CURE list)
• Cambridge Energy Seminars
• Department of Earth Sciences seminars
• Institute for Energy and Environmental Flows (IEEF)
• NanoDTC Energy Materials Talks
• Open Plan Area, BP Institute, Madingley Rise CB3 0EZ
• history
• ps635

Note that ex-directory lists are not shown.