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SUMMARY:Large deformations in soft porous materials: Squishing\, swelling\
 , and yielding - Christopher MacMinn (University of Oxford)
DTSTART:20160218T113000Z
DTEND:20160218T123000Z
UID:TALK64720@talks.cam.ac.uk
CONTACT:INI IT
DESCRIPTION:In an elastic solid\, the state of stress depends on the displ
 acement of material points from a relaxed reference state. In a poroelasti
 c solid\, the mechanics of the solid skeleton are additionally coupled to 
 flow through the pore structure. The classical theory of linear poroelasti
 city captures this coupling by combining Darcy&rsquo\;s law with Terzaghi&
 rsquo\;s effective stress and linear elasticity in a linearized kinematic 
 framework. This is a good model for very small deformations\, but it becom
 es increasingly inappropriate for moderate to large deformations\, which a
 re common in the context of phenomena such as swelling and damage\, and fo
 r soft materials such as gels and tissues. Here\, we review the well-known
  theory of large-deformation poroelasticity and then consider the implicat
 ions of large deformations in the context of two model problems: (1) Class
 ical uniaxial consolidation and (2) the swelling and drying of a spherical
  gel.<br><br>Related Links<ul><li><a target="_blank" rel="nofollow">http:/
 /cwmacminn.com</a></li></ul>
LOCATION:Seminar Room 1\, Newton Institute
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