Dynamic elastic-plastic buckling of circular cylindrical shells under axial impact
type: Item
instance of: scholarly article
title: Dynamic elastic-plastic buckling of circular cylindrical shells under axial impact
zbMATH Open document ID: 1002.74045
DOI: 10.1016/S0020-7683(98)00343-6
author: D. Karagiozova
author: N. Jones
published in: International Journal of Solids and Structures
publication date: 2003-01-01T00:00:00Z
review text: The understanding of dynamic elastic-plastic buckling phenomena of thin walled ductile metal tubes is especially of great practical importance when one considers energy absorbing properties. Although there exist a number of investigations of this phenomenon, some aspects are still poorly understood due to their complexity and due to the presence of parameters. In particular, the initiation of the buckling as a transient process has so far received little attention, and is studied in the present paper for variations of velocity of impacting mass on a large interval. This allows to clarify the influence of elastic and plastic stress waves on the initiation of buckling, and to provide some insight into post-buckling behaviour. The authors use a discrete model where springs are used to simulate the elastic-plastic material properties. A strain rate insensitive elastic-plastic material with linear strain hardening and displaying Bauschinger effect is assumed. The highly nonlinear system of equations is integrated numerically using a BDF method. Simulation results are compared and shown to be in good agreement with experiments performed on aluminium alloy tubes. The most important findings of the paper are that the dynamic buckling process is governed by stress wave propagation effects, and that the entire length of shell is involved in the deformation process for a high-velocity impact. Moreover, the final buckled shape depends strongly on inertia properties of the striker, and on the geometry of the shell. A thorough discussion of these and many other findings is presented in this excellent paper.
Mathematics Subject Classification ID: 74H55
Mathematics Subject Classification ID: 74K25
Mathematics Subject Classification ID: 74M20
zbMATH DE Number: 1485124
zbMATH Keywords: dynamic buckling
zbMATH Keywords: cylindrical shell
zbMATH Keywords: elastic-plastic
zbMATH Keywords: stress waves
zbMATH Keywords: post-buckling behaviour
zbMATH Keywords: discrete model
zbMATH Keywords: springs
zbMATH Keywords: strain-rate insensitive elastic-plastic material
zbMATH Keywords: linear strain hardening
zbMATH Keywords: Bauschinger effect
zbMATH Keywords: BDF method
zbMATH Keywords: high-velocity impact
reviewed by: Hans Troger
MaRDI profile type: Publication
full work available at URL: s0020-7683(98)00343-6
OpenAlex ID: W2092290014
Wikidata QID: Q127997968
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description: scientific article; zbMATH DE number 1485124