Some Problems In Modelling A Rigid-plastic Cantilever Beam Subjected
To Impact Loading
Author(s)
C. Casapulla, P. Jossa & A. Maione
Abstract
Some problems in modelling a rigid-plastic
cantilever beam subjected to impact loading
C. Casapulla, P. Jossa & A. Maione
Department of "Costruzioni e Metodi matematici in Architettura ",
University of Naples "Federico II", Italy
Abstract
A rigid-plastic model is used in this paper to analyse the behaviour of a
cantilever beam subjected to impact loading. It is well known that deformation
localisations in such a model are represented by plastic hinges during its
transient response. These plastic hinges, including bending and shearing hinges,
are basically discontinuity interfaces of the generalised displacements. By
assuming a convex yield function of bending and shear, continuity conditions at
a moving or stationary plastic hinge are herein examined, with particular
reference to the presence of shear deformations at the hinge. Then, some
interesting works of existing literature about this theme are discussed and a more
general kinematic mechanism for the beam under study is proposed. The
nume
Keywords
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