Comptes Rendus
Morphogenesis, elasticity
Morphogenetic processes: from leaves to embryos
Comptes Rendus. Mécanique, Volume 348 (2020) no. 6-7, pp. 637-648.

The present manuscript is devoted to two works related to the spontaneous formation of patterns in Nature: venation in leaves and evolution of embryos. Morphogenetic processes and growth-induced instability phenomena are modelled through analogue experiments. The organization of veins in leaves is similar to what is expected from growth in a tensorial stress field that governs the formation of fractures, while the change in the shape of embryos is related to the deformation of a shell-like membrane whose properties evolve with time. The approaches resulting from analogue experiments is a way to explore specific properties of the media at a macroscopic scale. Thus the manuscript aims to focus on the analogue experiments, their adaptability to reproduce specific patterns and the relation between both growth-induced instability and mechanical behaviour of the matter.

Published online:
DOI: 10.5802/crmeca.33
Keywords: Morphology, Instability, Crack, Buckling, Drying
Ludovic Pauchard 1

1 Laboratoire FAST, Univ. Paris-Sud, CNRS, Université Paris-Saclay, F-91405 Orsay, France
License: CC-BY 4.0
Copyrights: The authors retain unrestricted copyrights and publishing rights
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     title = {Morphogenetic processes: from leaves to~embryos},
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Ludovic Pauchard. Morphogenetic processes: from leaves to embryos. Comptes Rendus. Mécanique, Volume 348 (2020) no. 6-7, pp. 637-648. doi : 10.5802/crmeca.33. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.5802/crmeca.33/

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