Temat: FE analysis - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Load carrying capacity numerical study of I-beam pillar structure with blast protective panel
Autorzy:: Mazurkiewicz, L.
Kolodziejczyk, D.
Damaziak, K.
Malachowski, J.
Klasztorny, M.
Baranowski, P.
Powiązania:: https://bibliotekanauki.pl/articles/202056.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: FE analysis
blast protection
stability study
Opis:: The paper presents numerical analyses aimed at preliminary assessment of the protective panel effectiveness, which task is to protect the elements of building structures against explosion. For the criterion of assessing the effectiveness of the panel the load capacity of the column made of steel I-beam was chosen. Ultimate force was determined by using advanced computational procedure, which consisted of four stages: preload, blast simulation, dynamic response and static analysis of deformed structure. Blast load was simulated using Lagrangian- Eulerian domain coupling. Results indicated that the application of the protective panel significantly reduces the plastic deformation of the structure.
Źródło:: Bulletin of the Polish Academy of Sciences. Technical Sciences; 2013, 61, 2; 451-457
0239-7528
Pojawia się w:: Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Field test and numerical studies of the scissors-AVLB type bridge
Autorzy:: Krason, W.
Malachowski, J.
Powiązania:: https://bibliotekanauki.pl/articles/201143.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: scissor-AVLB type bridge
experimental test
numerical FE analysis
Opis:: Scissor bridges are characterized by high mobility and modular structure. A single module-span consists of two spanning parts of the bridge; two main trucks and the support structure. Pin joints are used between modules of the single bridge span. Some aspects of the experimental test and numerical analysis of the scissor-AVLB type bridge operation are presented in this paper. Numerical analyses, presented here, were carried out for the scissors-type BLG bridge with treadways extended as compared to the classical bridge operated up to the present in the Armed Forces of the Republic of Poland. A structural modification of this kind considerably affects any changes in the effort of the force transmitting structure of the bridge. These changes may prove to be disadvantageous to the whole structure because of torsional moments that additionally load the treadways. Giving careful consideration to such operational instances has been highly appreciated because of the possibility of using this kind of bridges while organizing the crossing for vehicles featured with various wheel/track spaces (different from those used previously). The BLG bridge was numerically analysed to assess displacements and distributions of stresses throughout the bridge structure in different loading modes. Because of the complexity of the structure in question and simplifications assumed at the stage of constructing geometric and discrete models, the deformable 3D model of the scissors-type bridge needs verification. Verification of the reliability of models was performed by comparing deflections obtained in the different load modes that corresponded with tests performed on the test stand. It has been shown that the examined changes in conditions of loading the treadways of the bridge are of the greatest effect to the effort of the area of the joint which is attached to the girder bottom. Stress concentrations determined in the analysis are not hazardous to safe operation of the structure.
Źródło:: Bulletin of the Polish Academy of Sciences. Technical Sciences; 2014, 62, 1; 103-112
0239-7528
Pojawia się w:: Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Numerical study of selected military vehicle chassis subjected to blast loading in terms of tire strength improving
Autorzy:: Baranowski, P.
Malachowski, J.
Powiązania:: https://bibliotekanauki.pl/articles/199788.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: blast loading
LAV
tire
FE analysis
opona
analiza MES
Opis:: In the paper a chosen model of the light armoured vehicle was tested in terms of blast loading. More precisely, the blast propagation and interaction with the tire behaviour and suspension system elements of the light-armoured vehicle (LAV) was simulated. The chosen military vehicle meets the requirements of levels 2A and 2B of STANAG 4569 standard. Based on the obtained results, two modifications were proposed for the strength and resistance improvement of the wheel. The first consisted of inserting the rubber runflat ring inside the tire, whereas in the second the honeycomb-like composite wheel was implemented. Non-linear dynamic simulations were carried out using the explicit LS-Dyna code, with multi-material Arbitrary Lagrangian-Eulerian formulation for simulation the blast process.
Źródło:: Bulletin of the Polish Academy of Sciences. Technical Sciences; 2015, 63, 4; 867-878
0239-7528
Pojawia się w:: Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:: Biblioteka Nauki

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