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A study of plastic waves during dynamic buckling of ductile slabs

Nilsson, Kristina LU and Sörensen, Niels LU (2002) In Modelling and Simulation in Materials Science and Engineering 10(5). p.569-580
Abstract
Plastic wave propagation is studied during progressive plastic buckling of elastic viscoplastic slabs. The numerical results of the buckling behaviour are studied using two recent approaches for monitoring the plastic wave propagation. One method is a direct geometrical monitoring of the waves using a sequence of smooth approximations (geo-plot). The other method is a contour plot method (q-plot) where contours of the normalized inelastic strain rate are used. The field quantities are obtained using a non-linear finite element method in the analysis of the dynamic viscoplastic buckling problem. The numerical results show that both methods are well suited for describing plastic wave motion and that the simpler q-plot method is fully... (More)
Plastic wave propagation is studied during progressive plastic buckling of elastic viscoplastic slabs. The numerical results of the buckling behaviour are studied using two recent approaches for monitoring the plastic wave propagation. One method is a direct geometrical monitoring of the waves using a sequence of smooth approximations (geo-plot). The other method is a contour plot method (q-plot) where contours of the normalized inelastic strain rate are used. The field quantities are obtained using a non-linear finite element method in the analysis of the dynamic viscoplastic buckling problem. The numerical results show that both methods are well suited for describing plastic wave motion and that the simpler q-plot method is fully adequate when addressing the overall qualitative plastic wave propagation in the slabs, whereas the geo-plot method has the ability to more precisely predict inelastic wave speeds. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Modelling and Simulation in Materials Science and Engineering
volume
10
issue
5
pages
569 - 580
publisher
IOP Publishing
external identifiers
  • wos:000178263500008
  • scopus:0036733881
ISSN
0965-0393
DOI
10.1088/0965-0393/10/5/307
language
English
LU publication?
yes
id
00359328-70a0-486d-9045-2c43531731fb (old id 326371)
date added to LUP
2007-11-19 16:22:12
date last changed
2017-01-01 04:24:59
@article{00359328-70a0-486d-9045-2c43531731fb,
  abstract     = {Plastic wave propagation is studied during progressive plastic buckling of elastic viscoplastic slabs. The numerical results of the buckling behaviour are studied using two recent approaches for monitoring the plastic wave propagation. One method is a direct geometrical monitoring of the waves using a sequence of smooth approximations (geo-plot). The other method is a contour plot method (q-plot) where contours of the normalized inelastic strain rate are used. The field quantities are obtained using a non-linear finite element method in the analysis of the dynamic viscoplastic buckling problem. The numerical results show that both methods are well suited for describing plastic wave motion and that the simpler q-plot method is fully adequate when addressing the overall qualitative plastic wave propagation in the slabs, whereas the geo-plot method has the ability to more precisely predict inelastic wave speeds.},
  author       = {Nilsson, Kristina and Sörensen, Niels},
  issn         = {0965-0393},
  language     = {eng},
  number       = {5},
  pages        = {569--580},
  publisher    = {IOP Publishing},
  series       = {Modelling and Simulation in Materials Science and Engineering},
  title        = {A study of plastic waves during dynamic buckling of ductile slabs},
  url          = {http://dx.doi.org/10.1088/0965-0393/10/5/307},
  volume       = {10},
  year         = {2002},
}