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http://dx.doi.org/10.12989/scs.2016.20.1.043

Experimental study of anisotropic behavior of PU foam used in sandwich panels  

Chuda-Kowalska, Monika (Institute of Structural Engineering, Poznan University of Technology)
Garstecki, Andrzej (Stanislaw Staszic University of Applied Sciences in Pila)
Publication Information
Steel and Composite Structures / v.20, no.1, 2016 , pp. 43-56 More about this Journal
Abstract
Polyurethane foam with low density used in sandwich panels is examined in the paper. A series of experiments was carried out to identify mechanical parameters of the foam. Various experimental methods were used for determining the shear modulus, namely a four and three point bending tests (the most common in engineering practice), a double-lap shear test and a torsion test. The behavior of PU in axial compression and tension was also studied. The experiments revealed pronounced anisotropy of the PU foam. An orthotropic model is proposed. Limitations of application of isotropic model of PU in engineering practice is also discussed.
Keywords
polyurethane foam; anisotropy; sandwich panels; material model; experimental methods;
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Times Cited By KSCI : 2  (Citation Analysis)
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