Seminar series
Date
Mon, 01 Dec 2008
Time
13:00 -
14:00
Location
Gibson 1st Floor SR
Speaker
Isaac Vikram Chenchiah
Organisation
University of Bristol
he study of polycrystals of shape-memory alloys and rigid-perfectly plastic materials gives rise to problems of nonlinear homogenization involving degenerate energies. We present a characterisation of the strain and stress fields for some classes of problems in plane strain and also for some three-dimensional situations. Consequences for shape-memory alloys and rigid-perfectly plastic materials are discussed through model problems. In particular we explore connections to previous conjectures characterizing those shape-memory polycrystals with non-trivial recoverable strain.