University of Connecticut

Events Calendar

Special Semester Talk
A variational perspective on wrinkling due to geometric incompatibility
Robert V. Kohn (NYU)

Thursday, September 19, 2019
3:30pm – 4:30pm

Storrs Campus
Monteith 104

A thin elastic sheet wrinkles to avoid compression. When the compression is uniaxial the wrinkling direction is clear, and the main challenge is to understand its local length scale. When the compression is biaxial the situation is more complex since even the direction of the wrinkling is hard to predict. A related situation occurs when the wrinkling is due to geometric incompatiblity, for example when a flat sheet is wrapped around a sphere or a curved shell is flattened by placing it on water. I will introduce this topic, then discuss several areas of recent progress, including striking work by Ian Tobasco on wrinkling driven by geometric incompatibility in a regime involving "asymptotic isometry."

Contact:

Xiaodong Yan

Mathematics Department (primary), UConn Master Calendar

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