Abstract
We study the onset of delamination blisters in a growing elastic sheet adhered to a flat stiff substrate. When the ends of the sheet are kept fixed, its growth causes residual stresses that lead to delamination. This instability can be viewed as a discontinuous buckling between the complete adhered solution and the buckled solution. We provide an analytic expression for the critical deformation at which the instability occurs. We show that the critical threshold scales with a single dimensionless parameter that comprises information from the geometry of the sheet, the mechanical parameters of material and the adhesive features of the substrate.
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06 January 2021
We wish to correct two small errors in our previous article.
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Acknowledgements
This research has been carried out within the Young Researchers Project “Morfogenesi e stabilità di film sottili confinati”, supported by the Italian “Gruppo Nazionale per la Fisica Matematica” (GNFM).
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Napoli, G., Turzi, S. The delamination of a growing elastic sheet with adhesion. Meccanica 52, 3481–3487 (2017). https://doi.org/10.1007/s11012-017-0618-0
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DOI: https://doi.org/10.1007/s11012-017-0618-0