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SUMMARY:MechE Colloquium: Toward a unified variational model of material f
 ailure
DTSTART:20260519T120000
DTEND:20260519T130000
DTSTAMP:20260403T211726Z
UID:b8da821ab710deb862777aeac6ada777c050ac66bb4a2a64a0ec215d
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Corrado Maurini\, ∂'Alembert Institute\, Sorbonne Uni
 versity Paris\nAbstract: The need to understand and predict material and s
 tructural failure has led to the development of several theoretical framew
 orks\, including plasticity\, limit analysis\, damage mechanics\, and cohe
 sive fracture models. \n\nI first review how these rate-independent theor
 ies can be formulated as energy minimisation problems and discuss their ma
 in properties and limitations. I then introduce a regularised fracture mod
 el\, akin to the phase-field regularisation used for softening plasticity\
 , that we recently proposed in [1]. Unlike standard gradient damage or pha
 se-field fracture models\, in this approach damage affects the material st
 rength rather than its stiffness.\n\nThrough analytical and numerical exam
 ples\, I show how this model\, within a consistent variational framework\,
  provides a path toward reconciling several key concepts developed over th
 e centuries\, including Griffith and cohesive crack models\, damage mechan
 ics\, plasticity\, strength criteria\, and limit analysis.\n\n[1] B. Bourd
 in\, J.-J. Marigo\, C. Maurini\, C. Zolesi\, A variational approach to fra
 cture incorporating any convex strength criterion\, arXiv:2506.22558. arXi
 v PDF\n\nBiography: Corrado Maurini is Professor of Solid Mechanics at the
  d'Alembert Institute\, Sorbonne Université\, Paris. He received his Ph.D
 . in Mechanics in 2005 through a joint programme between the University of
  Rome La Sapienza and Paris 6. His research focuses on the theoretical and
  computational mechanics of nonlinear solids\, with interests spanning fra
 cture and damage\, phase-field models\, structural stability\, rods\, plat
 es and shells\, and active materials.
LOCATION:MED 0 1418 https://plan.epfl.ch/?room==MED%200%201418 https://epf
 l.zoom.us/j/61360740951
STATUS:CONFIRMED
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