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Estimation of mechanical properties for rigid polyurethane foams
Author(s) -
Menges G.,
Knipschild F.
Publication year - 1975
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760150810
Subject(s) - materials science , polyurethane , composite material , ultimate tensile strength , shear modulus , deformation (meteorology) , shear (geology) , work (physics) , modulus , compressive strength , core (optical fiber) , thermodynamics , physics
Rigid plastic foams find application in construction mainly as core materials for loaded sandwich structures—in buildings, ground vehicles, and airplanes. This work provides an equation for the mechanical behavior of polyurethane foams as a function of foam density. Starting from a model conception and the qualitative microscopic consideration of the deformation and failure mechanism, simple relations are found for the tensile, compressive and shear strength and the elastic modulus, which sufficiently express the measured results.