IGM Colloquium: From 2D plates to 3D structures: Challenging Gauss theorem

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Event details

Date and time 24.03.2020 12:1513:15  
Place and room
Speaker Prof. José Bico, PMMH-ESPCI
Category Conferences - Seminars
Cartographers have early realized that it is impossible to draw a flat map of the Earth without deforming continents. Gauss later generalized this geometrical constrain in his Theorema Egregium. Can we invert the problem and obtain a 3D shape by changing the local distances in an initially flat plate? This strategy in widely used in Nature: leaves or petals may develop into very complex shapes by differential growth. From an engineering point of view, can we induce similar shape changes by inflating a network of channels imbedded in a deformable flat patch? Can we program the final inflated shape?

José Bico
- 1997-2000 PhD at the Collège de France (supervision David Quéré)
- 2001-2003 Postdoc in the Department of Mechanical Engineering, MIT, USA (supervision Gareth McKinley)
- since 2003 associate professor à ESPCI-PSL (École Supérieure de Physique et de Chimie Industrielles de Paris, Paris Science et Lettres)

Developed "MecaWet" research group in the PMMH laboratory (Physique et Mécanique des Milieux Hétérogènes) with Benoît Roman and Étienne Reyssat, where we work on the mechanics of slender structures (“Meca”), interfacial flows (“Wet”) and the coupling of mechanics and surface forces.
Co-author with Étienne Guyon, Benoît Roman and Étienne Reyssat of a popular science book, “Du merveilleux caché dans le quotidien”, Flammarion 2018, English version to be published as “Hidden wonders” MIT press 2020.

Practical information

  • General public
  • Free



IGM Colloquium: From 2D plates to 3D structures: Challenging Gauss theorem