Elastic response and wrinkling onset of curved elastic membranes subjected to indentation test

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Elastic response and wrinkling onset of curved elastic membranes subjected to indentation test.

Starting from a polymeric-fluid droplet, by vulcanization of the fluid free surface, curved elastic membranes, several nanometers thick and a few millimeters in diameter, which enclose a constant fluid volume, are produced. In an indentation-type test, carried out by pushing the membrane along its normal by means of a micro-needle, under some conditions, wrinkles are likely to appear around the...

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Experimentally measuring the elastic properties of thin biological surfaces is non-trivial, particularly when they are curved. One technique that may be used is the indentation of a thin sheet of material by a rigid indenter, while measuring the applied force and displacement. This gives immediate information on the fracture strength of the material (from the force required to puncture), but it...

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ژورنال

عنوان ژورنال: The European Physical Journal E

سال: 2011

ISSN: 1292-8941,1292-895X

DOI: 10.1140/epje/i2011-11013-0