Localization through Surface Folding in Solid Foams under Compression
Author(s)Boudaoud, Arezki; Corson, F.; Roman, B.; Reis, Pedro Miguel
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We report a combined experimental and theoretical study of the compression of a solid foam coated with a thin elastic film. Past a critical compression threshold, a pattern of localized folds emerges with a characteristic size that is imposed by an instability of the thin surface film. We perform optical surface measurements of the statistical properties of these localization zones and find that they are characterized by robust exponential tails in the strain distributions. Following a hybrid continuum and statistical approach, we develop a theory that accurately describes the nucleation and length scale of these structures and predicts the characteristic strains associated with the localized regions.
DepartmentMassachusetts Institute of Technology. Department of Mathematics
Physical Review Letters
American Physical Society
Reis, P. M. et al. “Localization through Surface Folding in Solid Foams under Compression.” Physical Review Letters 103.4 (2009): 045501. (C) 2010 The American Physical Society.
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