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ARTICLE
Strength of a metal seven-layer rectangular plate with trapezoidal corrugated cores
| 1 | Institute of Mathematics, Poznan University of Technology, Poznań |
| 2 | Institute of Applied Mechanics, Poznan University of Technology, Poznań |
Submission date: 2016-05-19
Acceptance date: 2016-09-08
Online publication date: 2017-04-15
Publication date: 2017-04-15
Journal of Theoretical and Applied Mechanics 2017;55(2):433–446
KEYWORDS
ABSTRACT
The subject of analytical and numerical investigations in this paper is a metal seven-layer
rectangular plate with a trapezoidal corrugated main core and two trapezoidal corrugated
cores of faces. The hypothesis of deformation of the normal to the middle surface of the
plate after bending and field of displacements is formulated. The plate is simply supported
on all its edges and subjected to a uniform pressure. Equations of equilibrium are derived
based on the theorem of minimum total potential energy and are solved with the use of
the Galerkin method. The influence of the trapezoidal corrugation pitch of the cores on the
deflection and the equivalent stress is analysed.
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