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Strain localization in polyurethane foams: experiments and theoretical model. (English) Zbl 1189.74010
Ganghoffer, Jean-François (ed.) et al., Mechanics of microstructured solids. Cellular materials, fibre-reinforced solids and soft tissues. Papers based on the presentations at the 11th EUROMECH-MECAMAT conference, Torino, Italy, March 10–14, 2008. Berlin: Springer (ISBN 978-3-642-00910-5/hbk; 978-3-642-00911-2/ebook). Lecture Notes in Applied and Computational Mechanics 46, 29-38 (2009).
Summary: Strain localization has been observed in polyurethane foams subjected to confined compression up to 70% of deformation. This phenomenon is described by a one-dimensional model, in which the foam is represented as a chain of non-linear elastic springs with non-convex strain energy density, and localization is attributed to progressive phase transition.
For the entire collection see [Zbl 1189.74006].

MSC:
74A40 Random materials and composite materials
74N99 Phase transformations in solids
74-05 Experimental work for problems pertaining to mechanics of deformable solids
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