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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Gajewski, Marcin Daniel
Road and Bridge Research Institute
in Cooperation with on an Cooperation-Score of 37%
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Publications (5/5 displayed)
- 2019Local Plastic Instabilities of Perforated Thin-Walled Bars – FEM Modelling and DIC Verificationcitations
- 2018Rheological properties of road bitumens modified by natural asphaltcitations
- 2016Inverse analysis and DIC as tools to determine material parameters in isotropic metal plasticity models with isotropic strain hardeningcitations
- 2015Estimation of Isotropic Hyperelasticity Constitutive Models to Approximate the Atomistic Simulation Data for Aluminium and Tungsten Monocrystals
- 2013Application of large deformation circular cylinder torsion test for identification of material model and parameters in case of modified binders
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document
Local Plastic Instabilities of Perforated Thin-Walled Bars – FEM Modelling and DIC Verification
Abstract
Inthispaperresultsoftestingandmodellingofperforatedthin-walledbarsoflowslenderness are shown. Tested and modelled elements in general are used as structural elements for storage systems. In such case the compression mode is dominant, so the proper understanding oftheelementbehaviourinpost-criticalstageisessentialforsystemsafetyestimation.Topredictpostcriticalbehaviourthesuitableconstitutivemodelsofelasto-plasticityareneeded.The most essential to such simulations is the fact that local deformations and rotation angles are significant,sothelargedeformationmodellingregardingtogeometryandconstitutivemodelshave to be used. In the paper for FEM (finite element method) modelling the ABAQUS system is used,andobtainedsolutionsareverifiedexperimentallyusingInstron8802universaltestingmachine.Asidefrommeasuringcriticalforcesandfinaldeformationsforseveralsamplesandeight different bar’s lengths, also strain and displacement fields were verified with application of DIC(digitalimagecorrelation)systemARAMIS.BecauseofthetestingmachineandDICsystemlimitationsonlyverylowslenderness(1÷11)samplesweretakenintoaccount.Barsofsuchalowslendernessshouldbetreatedasshellsorthreedimensionalobjectsinnumericalmodelling