Mechanics of plant fruit hooks | Zendy

Qiang Chen | Zendy; Stanislav N. Gorb | Zendy; Elena V. Gorb | Zendy; Nicola M. Pugno | Zendy

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Mechanics of plant fruit hooks

Author(s) -

Qiang Chen,

Stanislav N. Gorb,

Elena V. Gorb,

Nicola M. Pugno

Publication year - 2013

Publication title -

journal of the royal society interface

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.655

H-Index - 139

eISSN - 1742-5689

pISSN - 1742-5662

DOI - 10.1098/rsif.2012.0913

Subject(s) - hook , bernoulli's principle , displacement (psychology) , mechanics , materials science , mathematics , physics , structural engineering , engineering , thermodynamics , psychology , psychotherapist

Hook-like surface structures, observed in some plant species, play an important role in the process of plant growth and seed dispersal. In this study, we developed an elastic model and further used it to investigate the mechanical behaviour of fruit hooks in four plant species, previously measured in an experimental study. Based on Euler-Bernoulli beam theory, the force-displacement relationship is derived, and its Young's modulus is obtained. The result agrees well with the experimental data. The model aids in understanding the mechanics of hooks, and could be used in the development of new bioinspired Velcro-like materials.

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