CalcVar Seminar announcement

[Emanuele Tuillier Illingworth]

CALCVAR SEMINAR SERIES
------------------------------------------------

Prof. David Owen

Title: Elasticity with Disarrangements

Abstract: The field theory of elastic bodies undergoing finite
deformations (classical finite elasticity) is the point of departure for a
variety of broader continuum field theories.  I will indicate a variety of
approaches toward broadening finite elasticity with the common goal of
including the effects of geometrical changes at more than one length
scale.  My presentation will provide a detailed description of one such
broadening, "elasticity with disarrangements" (Deseri & Owen, 2003), based
on the multiscale geometry of structured deformations (Del Piero & Owen,
1993).  Here, the term "disarrangements" denotes non-smooth submacroscopic
geometrical changes such as the formation of voids and the occurrence
microscopic slips.  The talk will include an application of elasticity
with disarrangements to the description of granular bodies ("elastic
aggregates"), including the formulation of variational problems in the
context of statics.  Central to a variety of applications of elasticity
with disarrangements is the notion of "disarrangement phase", and I will
discuss a notion of "stable disarrangement phase" that connects elasticity
with disarrangements to theories of masonry-like (no-tension) materials.

Venue: SISSA, Wednesday 27 April at 11:00 in lecture room 133