Manufacturing Technology 2016, 16(1):81-86 | DOI: 10.21062/ujep/x.2016/a/1213-2489/MT/16/1/81

The Effect of Beam Curvature on Bending Properties of Sandwich Structures

Ladislav Fojtl1,2, Sona Rusnakova1, Milan Zaludek1, Vladimir Rusnak3
1 Department of Production Engineering, Faculty of Technology, Tomas Bata University in Zlín. Vavrečkova 275, 760 01 Zlín. Czech Republic
2 Centre of Polymer Systems, Tomas Bata University in Zlín, Trida Tomase Bati 5678, 760 01 Zlín, Czech Republic
3 Faculty of Metallurgy and Materials Engineering, V©B-Technical University of Ostrava, 17. listopadu 15, 708 33 Ostrava-Poruba, Czech Republic

Sandwich composites are well known for many years and its place among the construction materials have they deserved mainly due to very good mechanical properties related to their weight. These materials have been a subject for many researches, but very few of them were focused on the behavior of curved constructions in bend with respect to their specific shape (curvature). With increasing number of new materials and resulting possible material combinations, it is necessary to characterize performance of new prepared structures and also evaluate the effect of a shape on the behavior of sandwich constructions with regard to their material composition. Presented paper deals with an investigation of flat and curved beams of sandwich structures, which correspond by their material composition to those, used in transport industry. Specifically, the influence of curvature size on a change of bending properties of structures with specific material composition compared to flat constructions is evaluated. This influence is also investigated in terms of specimen clamping and type of bending test. Obtained results showed that properties of sandwich structures are dependent not only on size of curvature, bud also on core thickness. Moreover, these results can help designers, constructers or technologists with design, dimensioning or production of these materials for specific applications.

Keywords: Sandwich structure, Beam, Curvature, Shape, Bending, Load capacity, Core, Prepreg

Published: February 1, 2016  Show citation

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Fojtl L, Rusnakova S, Zaludek M, Rusnak V. The Effect of Beam Curvature on Bending Properties of Sandwich Structures. Manufacturing Technology. 2016;16(1):81-86. doi: 10.21062/ujep/x.2016/a/1213-2489/MT/16/1/81.
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