Lateral impact of tubular structure - theoretical and experimental analysis. Pt.1 - Investigation of single tube.

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dc.contributor.authorLipa, Sebastian
dc.contributor.authorKotełko, Maria
dc.date.accessioned2015-11-26T08:27:50Z
dc.date.available2015-11-26T08:27:50Z
dc.date.issued2013
dc.description.abstractIf a thin-walled member is subjected to dynamic load, the estimation of its structural behaviour has to count for the strain-rate influence upon stress-strain material characteristics. It is particularly important when a thin-walled member works as an energy absorber. In the paper, the problem of collapse load, post-failure behaviour and energy dissipation of a tubular structure subjected to lateral impact load is presented. The analytical solution of the problem of initial collapse load and post-failure behaviour of a single tube is discussed. The analysis is limited to the “dynamic progressive crushing”, which means that we take into account the strain-rate but neglect inertia effects. The solution is based on the yield-line analysis and takes into account the impact velocity and strain rate, using the Cowper-Symonds constitutive relation. The same problem concerning both the single tube and multi-member tubular structure subjected to lateral bending impact load is solved using Finite Element (FE) simulation, which also takes into account the impact velocity and strain rate, using the corresponding to Cowper-Symonds Perzyna material model. Results of numerical calculations are compared with those obtained from the quasi-dynamic tests performed at different loading velocities on single tubes. The results are shown in load-deformation diagrams and diagrams of deformation patterns.en_EN
dc.identifier.citationJournal of Theoretical and Applied Mechanics, 2013 Vol.51 nr 4 s.873-882
dc.identifier.issn1429-2955
dc.identifier.other40417
dc.identifier.urihttp://hdl.handle.net/11652/850
dc.language.isoen
dc.publisherPolskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
dc.relation.ispartofseriesJournal of Theoretical and Applied Mechanics, 2013 Vol.51 nr 4en_EN
dc.subjecttubular structureen_EN
dc.subjectlateral bendingen_EN
dc.subjectimpact loaden_EN
dc.subjectstrain rateen_EN
dc.subjectzginanie bocznepl_PL
dc.subjectwpływ obciążeniapl_PL
dc.subjectszybkość odkształcaniapl_PL
dc.subjectobliczenia numerycznepl_PL
dc.subjectkonstrukcja rurowapl_PL
dc.titleLateral impact of tubular structure - theoretical and experimental analysis. Pt.1 - Investigation of single tube.
dc.typeArtykuł

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