Abstract
The evaluation of the influence of the examined mesh structure on the computational results is considered in this paper. The annular plates with three-layered, cross-section structure having the soft core in the range of critical behaviour after loss of static and dynamic stability have been analysed. Several meshes of plate models, which can be applied in numerical calculations have been presented. The results obtained in finite element method have been compared with the results of plates solved using the finite difference method. The analysis has been undertaken in the wide range of the examined problems taking into account not only the global forms of plate critical deformations but also the other local ones and analysing different plate buckling forms with several transverse waves in circumferential direction, too. In the discussion the rate of the sensitivity of the presented plate models depending on their problem application has been noticed.Keywordsmesh modelsandwich platestaticdynamic stabilityFEMFDM
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