Delamination of thin sheets from sticky substrates

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• Dominic Vella, ITG
• Thursday 05 February 2009, 11:30-12:30
• Open Plan Area, BP Institute, Madingley Rise CB3 0EZ.

If you have a question about this talk, please contact Catherine Pearson.

Thin sheets are adhered to substrates in a range of practical applications. Traditionally the delamination of these sheets is viewed as something to be avoided but in some microscopic applications it can actually prove useful. We consider two macroscopic examples of the delamination of thin sheets from sticky substrates. In the first example, motivated by ‘stretchable electronics’, delamination is induced by the compression of a soft substrate and gives rise to a series of blisters with a characteristic size. We study this characteristic size and consider the possible implications for stretchable electronics techniques. In the second example, we take a new look at a classical adhesion test – the ‘Blister test’. Using a thin liquid layer as an adhesive we find new delamination patterns that we characterize theoretically.

This talk is part of the Institute for Energy and Environmental Flows (IEEF) series.

This talk is included in these lists:

• All Talks (aka the CURE list)
• Cambridge Energy Seminars
• Department of Earth Sciences seminars
• Institute for Energy and Environmental Flows (IEEF)
• NanoDTC Energy Materials Talks
• Open Plan Area, BP Institute, Madingley Rise CB3 0EZ
• history
• ps635

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