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SUMMARY:The transverse arch of human foot - Shreyas Mandre (Brown Universi
 ty)
DTSTART:20170918T123000Z
DTEND:20170918T131000Z
UID:TALK79691@talks.cam.ac.uk
CONTACT:INI IT
DESCRIPTION:Fossil record indicates that the emergence of arches in human 
 ancestral feet coincided with a transition from an arboreal to a terrestri
 al lifestyle. Propulsive forces exerted during walking and running load th
 e foot under bending\, which is distinct from those experienced during arb
 oreal locomotion. I will present mathematical models with varying levels o
 f detail\, accompanied by data from human subject experiments and fossiliz
 ed human ancestral feet\, to illustrate a simple function of the transvers
 e arch. Just as we curve a dollar bill in the transverse direction to stif
 fen it while inserting it in a vending machine\, the transverse arch of th
 e human foot stiffens it for bending<br>deformations. A fundamental interp
 lay of geometry and mechanics underlies this stiffening -- curvature coupl
 es the soft out-of-plane bending mode to the stiff in-plane stretching def
 ormation. <br><br>
LOCATION:Seminar Room 1\, Newton Institute
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