Abstract
Compressing thin sheets usually yields the formation of singularities which focus curvature and stretch on points or lines. In particular, following the common experience of crumpled paper where a paper sheet is crushed in a paper ball, one might guess that elastic singularities should be the rule beyond some compression level. In contrast, we show here that, somewhat surprisingly, compressing a sheet between cylinders makes singularities spontaneously disappear at large compression. This “stress-defocusing” phenomenon is qualitatively explained from scale invariance and further linked to a criterion based on a balance between stretch and curvature energies on defocused states. This criterion is made quantitative using the scalings relevant to sheet elasticity and compared to experiment. These results are synthesized in a phase diagram completed with plastic transitions. They end up with a renewed vision of elastic singularities as a thermodynamic condensed phase where stress is focused, in competition with a regular diluted phase where stress is defocused. Different compression routes may be followed in this diagram by managing differently the two principal curvatures of a sheet, as experimentally achieved here. In practice, besides the famous Elastica and crumpled paper routes, this offers interesting alternatives for compressing a sheet with an amazing spontaneous regularization of geometry and stress that repels the occurrence of plastic damages.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
V. Pereira, A. Castro Neto, H. Liang, L. Mahadevan, Phys. Rev. Lett. 105, 156603 (2010)
J. Genzer, J. Groenewold, Soft. Matter 2, 310 (2006)
U. Seifert, Adv. Phys. 46, 13 (1997)
M. Alava, K. Niskanen, Rep. Prog. Phys. 69, 699 (2006)
M. Golombek, F.S. Anderson, M.T. Zuber, J. Geophys. Res. 106, 811 (2001)
A. Lobkovsky, S. Gentges, H. Li, D. Morse, T. Witten, Science 270, 1482 (1995)
A. Lobkovsky, Phys. Rev. E 53, 3750 (1996)
A. Lobkovsky, T. Witten, Phys. Rev. E 55, 1577 (1997)
M. Ben Amar, Y. Pomeau, Proc. R. Soc. Lond A 453, 729 (1997)
E. Cerda, L. Mahadevan, Phys. Rev. Lett. 80, 2358 (1998)
B. Audoly, Y. Pomeau, Elasticity and Geometry: From Hair Curls to the Non-Linear Response of Shells (Oxford University Press, Oxford, 2010)
S. Chaïeb, F. Melo, J.C. Géminard, Phys. Rev. Lett. 80, 2354 (1998)
T. Witten, Rev. Mod. Phys. 79, 643 (2007)
B. Roman, A. Pocheau, Phys. Rev. Lett. 108, 074301 (2012)
L. Landau, E. Lifshitz, Theory of Elasticity (Elsevier, Cambridge, England, 1986)
L. Euler, Methodus Inveniendi Lineas Curvas Maximi Minimivi Propreitate Gaudentes. Additamentum I: De curvis elasticas (Lausanne & Geneva, 1744)
W.A. Oldfather, C.A. Ellis, D. Brown, Isis 20, 72 (1930)
B. Roman, A. Pocheau, Europhys. Lett. 46, 602 (1999)
B. Roman, A. Pocheau, J. Mech. Phys. Sol. 50, 2379 (2002)
A. Pocheau, B. Roman, Physica D 192, 161 (2004)
A. Pogorelov, Bendings of Surfaces and Stability of Shells (American Mathematical Society, Providence, 1988)
D.J. Struik, Lectures on Classical Differential Geometry (Addison-Wesley, Reading, 1961)
A. Boudaoud, P. Patricio, Y. Couder, M. Ben Amar, Nature 407, 718 (2000)
B. Du, O.C. Tsui, Q. Zhang, T. He, Langmuir 17, 3286 (2001)
Acknowledgements
This work, which gave rise to the publication [14], has been performed in close collaboration with Benoit Roman. I thank him for many fruitful discussions and interactions.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2013 Springer Science+Business Media New York
About this chapter
Cite this chapter
Pocheau, A. (2013). On the Occurrence of Elastic Singularities in Compressed Thin Sheets: Stress Focusing and Defocusing. In: Leoncini, X., Leonetti, M. (eds) From Hamiltonian Chaos to Complex Systems. Nonlinear Systems and Complexity, vol 5. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-6962-9_7
Download citation
DOI: https://doi.org/10.1007/978-1-4614-6962-9_7
Published:
Publisher Name: Springer, New York, NY
Print ISBN: 978-1-4614-6961-2
Online ISBN: 978-1-4614-6962-9
eBook Packages: EngineeringEngineering (R0)