Pubblicazione scientifica

Forward and inverse problems in the mechanics of soft filaments

FILONE TECNOLOGICO	TEMA
produzione e cattura

RIASSUNTO

Soft slender structures are ubiquitous in natural and artificial systems, in active and passive settings and across scales, from polymers and flagella, to snakes and space tethers. In this paper, we demonstrate the use of a simple and practical numerical implementation based on the Cosserat rod model to simulate the dynamics of filaments that can bend, twist, stretch and shear while interacting with complex environments via muscular activity, surface contact, friction and hydrodynamics. We validate our simulations by solving a number of forward problems involving the mechanics of passive filaments and comparing them with known analytical results, and extend them to study instabilities in stretched and twisted filaments that form solenoidal and plectonemic structures. We then study active filaments such as snakes and other slender organisms by solving inverse problems to identify optimal gaits for limbless locomotion on solid surfaces and in bulk liquids.

DATA

Data di pubblicazione: 13/06/2018

AUTORI

GAZZOLA M
DUDTE L H
MCCORMICK A G
MAHADEVAN L

ENTE DI AFFERENZA

DEPT MECH SCIENCE & ENG & NATL CTR SUPERCOMPUTING APPLICATIONS UNIV ILLINOIS AT URBANA CHAMPAIGN URBANA IL 61801 USA
JOHN A PAULSON SCHOOL OF ENG & APPLIED SCIENCES HARVARD UNIV CAMBRIDGE MA 02138 USA
GOOGLE MOUNTAIN VIEW CA 94043 USA
DEPT PHYSICS HARVARD UNIV CAMBRIDGE MA 02138 USA

RIVISTA

Royal Society Open Science, 5(6), 171628

IMPACT FACTOR

2,680

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