Ribbon Curling

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• Dr Chris Prior - Durham University
• Friday 06 November 2015, 15:00-16:00
• Cambridge University Engineering Department, LR5.

If you have a question about this talk, please contact Lorna Everett.

The procedure of curling a ribbon by running it over a sharp blade is commonly used in wrapping presents. We examine this phenomenon using experiment and theory, investigating the dependence of ribbon curvature on blade curvature, the longitudinal load imposed on the ribbon and the speed of pulling. A surprising experimental finding was the non-monotonic relationship between the applied load, which forces the ribbon to curl around the blade, and the resulting radius of coiling. We develop a model which identifies this non-monotonicity as a self-limiting effect of the relaxation of the ribbon.

This talk is part of the Engineering Department Structures Research Seminars series.

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