Axial crushing of flattened expanded metal tubes |
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| Affiliation: | 1. Department of Physics, Hebei Advanced Thin Films Laboratory, Hebei Normal University, Shijiazhuang 050024, People''s Republic of China;2. Department of Mathematics and Physics, Shijiazhuang Tiedao University, Shijiazhuang 050043, People''s Republic of China;1. Ingeniery of Mechanical Systems and Materials Laboratory, University of Tlemcen, 13000, Tlemcen, Algeria;2. Department of Physics, Faculty of Sciences, University of Tlemcen, 13000, Tlemcen, Algeria;3. Laboratory of Materials & Reactives Systems, Mechanical Engineering Departement, University of Sidi Bel Abbes, 22000, Algeria;1. Chemnitz University of Technology, Chair of Virtual Production Engineering, Reichenhainer Straße 70, 09126 Chemnitz, Germany;2. Chemnitz University of Technology, Chair of Welding Engineering, Reichenhainer Straße 70, 09126 Chemnitz, Germany |
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| Abstract: | This paper presents an investigation on the structural behavior of flattened expanded metal tubes subjected to axial crushing. At first, the study is carried out experimentally to investigate the effect of the angle formed between the expanded metal cell and the applied load. Secondly, the results are compared with experimental results for standard expanded metal sheets. Thereafter, numerical analyses are conducted by means of nonlinear finite element models, to investigate the enhancement in the energy absorption characteristics due to flattening of the expanded metal. Both results, experimental and numerical show a significant increase in energy absorbing capacity and mean force for the flattened tubes. |
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| Keywords: | Axial crushing Expanded metal Energy absorption Crashworthiness |
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