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How Does A Porous Shell Collapse? Delayed Buckling And Guided Folding Of Inhomogeneous Capsules

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 نشر من قبل Sujit Datta
 تاريخ النشر 2012
  مجال البحث فيزياء
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Colloidal capsules can sustain an external osmotic pressure; however, for a sufficiently large pressure, they will ultimately buckle. This process can be strongly influenced by structural inhomogeneities in the capsule shells. We explore how the time delay before the onset of buckling decreases as the shells are made more inhomogeneous; this behavior can be quantitatively understood by coupling shell theory with Darcys law. In addition, we show that the shell inhomogeneity can dramatically change the folding pathway taken by a capsule after it buckles.

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