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The planar elastica, stress, and material stress

Presented by: 
James Hanna Virginia Polytechnic Institute and State University
Tuesday 19th September 2017 - 14:30 to 14:50
INI Seminar Room 1
We revisit the classical problem of the planar Euler \emph{elastica} with applied forces and moments, and present a classification of the shapes in terms of tangentially conserved quantities associated with spatial and material symmetries.  We compare commonly used director, variational, and dynamical systems representations, and present several illustrative physical examples. 
We remark that an approach that employs only the shape equation for the tangential angle obscures physical information about the tension in the body.
University of Cambridge Research Councils UK
    Clay Mathematics Institute London Mathematical Society NM Rothschild and Sons