A numerical investigation of dynamic plastic buckling behaviour of thin-walled cylindrical structures with several geometries

作者: Recep Gümrük

DOI: 10.1016/J.TWS.2014.08.016

关键词: Shell (structure)AlloyDiscontinuity (linguistics)LS-DYNABucklingWave propagationFinite element methodConical surfaceMaterials scienceStructural engineering

摘要: Abstract In this study dynamic buckling behaviors of an aluminum alloy cylindrical shell with axial linear variable thickness, discontinuity and conical shaped have been numerically investigated for high velocity impact by means finite element method. The validation model was provided the results previous studies in literature. Throughout commerce package program LS-DYNA3D used all simulations were fulfilled as explicitly. According to obtained, minor changes geometry are able convert plastic into progressive behavior. This indicates that which or mechanism will be dominant is sensitive geometrical properties shells under impact.

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