Euler's problem,Euler's method,and the standard map; or,the discrete charm of buckling |
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Authors: | Domokos G Holmes P |
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Institution: | (1) Department of Theoretical and Applied Mechanics, Cornell University, 14853-1503 Ithaca, NY;(2) Present address: Department of Strength of Materials, Technical University of, H-1521 Budapest, Hungary;(3) Department of Theoretical and Applied Mechanics, Cornell University, 14853-1503 Ithaca, NY, USA |
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Abstract: | Summary We explore the relation between the classical continuum model of Euler buckling and an iterated mapping which is not only
a mathematical discretization of the former but also has an exact, discrete mechanical analogue. We show that the latter possesses
great numbers of “parasitic” solutions in addition to the natural discretizations of classical buckling modes. We investigate
this rich bifurcational structure using both mechanical analysis of the boundary value problem and dynamical studies of the
initial value problem, which is the familiar standard map. We use this example to explore the links between discrete initial
and boundary value problems and, more generally, to illustrate the complex relations among physical systems, continuum and
discrete models and the analytical and numerical methods for their study. |
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Keywords: | Euler buckling standard map bifurcation homoclinic orbits discretization inhomogeneous continuum |
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