May 20, 1988 - May 20, 2021

  • Date:15ThursdayFebruary 2018

    Geometric charges in Elastic Solids

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    Time
    11:15 - 12:30
    Location
    Edna and K.B. Weissman Building of Physical Sciences
    Auditorium
    Lecturer
    Michael Moshe
    Harvard
    Organizer
    Faculty of Physics
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    DetailsShow full text description of 11:00 Coffee, Tea and more ...»
    11:00 Coffee, Tea and more
    AbstractShow full text abstract about The mechanics of many natural systems is governed by localiz...»
    The mechanics of many natural systems is governed by localized sources of stresses. Examples include "plastic events" that occur in amorphous solids under external stress, defects formation in graphene, and force-dipoles applied by cells adhered to an elastic substrate. Recent developments in a geometric formulation of elasticity theory paved the way for a unifying mathematical description of such singular sources of stress, as “geometric charges". In this talk I will review basic results in this field, focusing on the geometry and mechanics of two-dimensional solid bodies. I will demonstrate the applicability of this approach in three different problems: mechanical metamaterials, mechanics of Kirigami, and wrinkle patterns in geometrically-incompatible elastic sheets.
    Colloquia