Analytical, FEM-numerical and experimental studies of bending of a
sandwich plate-strip with metal foam core
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Łukasiewicz – IPS “TABOR”
Publication date: 2020-09-30
Rail Vehicles/Pojazdy Szynowe 2020,3,1-19
KEYWORDS
ABSTRACT
The subject of the study is a sandwich plate-strip subjected to a four-point load. An analytical
model of the strip was developed, taking into account the classical zig-zag theory, namely the
broken line hypothesis. Three parts of the plate-strip are distinguished: two of them are the
edge parts, where bending and the shear effect is considered, the third one is the middle part
subjected to pure bending. The total maximum deflection of the plate-strip and the maximum
deflection of the selected middle part of the plate-strip are calculated. The FEM-numerical
study is carried out similarly to the analytical approach. The experimental study was carried
out on the test stand in the Institute of Rail Vehicles TABOR. The analytical, numerical and
experimental results are compared each with other. The sandwich panels can be used as parts
of the floor or rail vehicle paneling.
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