Confined compression tests up to 70% of deformation have been performed on polyurethane foams. During these experiments strain localization has been observed (Pampolini et al. 2007-2). This behavior is described by a one-dimensional model, in which the foam is represented as a chain of non-linear elastic springs with a double-well strain energy density, and the localization is attributed to progressive phase change.
Strain localization in polyurethane foams. Experiments and theoretical model
DEL PIERO, Gianpietro;PAMPOLINI, Giampiero
2008
Abstract
Confined compression tests up to 70% of deformation have been performed on polyurethane foams. During these experiments strain localization has been observed (Pampolini et al. 2007-2). This behavior is described by a one-dimensional model, in which the foam is represented as a chain of non-linear elastic springs with a double-well strain energy density, and the localization is attributed to progressive phase change.File in questo prodotto:
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