Issue 22, 2011

Modeling and simulation of curled dry leaves

Abstract

Based on the observation of the natural senescence and experiment of the drying process of leaves, we establish phenomenological buckling models to explain the curled configuration of dried leaves, where the driving force is the differential contraction strain field. In the minimalist model, through a systematic study, the averaged buckling curvature is correlated with the aspect ratio and normalized size of the leaf, as well as the magnitude of the differential strain. In the refined model, the role of the vascular system is emphasized. Several main characteristics discovered through theoretical/numerical studies are validated by proof-of-concept experiments using various types of leaves. The findings in this paper not only shed some light on the intriguing natural phenomena, but also may enable potential applications in three-dimensional fabrications using mechanical self-assembly.

Graphical abstract: Modeling and simulation of curled dry leaves

Article information

Article type
Paper
Submitted
30 May 2011
Accepted
23 Aug 2011
First published
03 Oct 2011

Soft Matter, 2011,7, 10794-10802

Modeling and simulation of curled dry leaves

H. Xiao and X. Chen, Soft Matter, 2011, 7, 10794 DOI: 10.1039/C1SM05998J

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