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Hiding the squid: patterns in artificial cephalopod skin.

Fishman A, Rossiter J, Homer M - J R Soc Interface (2015)

Bottom Line: Cephalopods employ their chromomorphic skins for rapid and versatile active camouflage and signalling effects.The artificial skin is made from electroactive dielectric elastomer: a soft, planar-actuating smart material that we show can be effective at mimicking the actuation of biological chromatophores.The proposed system achieves dynamic pattern generation by imposing simple local rules into the artificial chromatophore cells so that they can sense their surroundings in order to manipulate their actuation.

View Article: PubMed Central - PubMed

Affiliation: Department of Engineering Mathematics, University of Bristol, Bristol BS8 1UB, UK uk.afishman@gmail.com.

No MeSH data available.


Illustration of the discretization scheme using a prestretched thread. (Online version in colour.)
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RSIF20150281F5: Illustration of the discretization scheme using a prestretched thread. (Online version in colour.)

Mentions: The DE is discretized using n three-dimensional rectangular cuboids, each with mass m, which remain rectangular during deformation; this is illustrated schematically in figure 5. We consider elements with natural length L in the planar directions, and T in the thickness direction. Elements are joined end-to-end in series to form a thread of length l, with fixed boundary conditions, prestretched in the length direction by a factor λ1,pre, and in the width direction by the fibre constraints. Elements are represented by two nodes constrained to displace along the thread length only.Figure 5.


Hiding the squid: patterns in artificial cephalopod skin.

Fishman A, Rossiter J, Homer M - J R Soc Interface (2015)

Illustration of the discretization scheme using a prestretched thread. (Online version in colour.)
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4528594&req=5

RSIF20150281F5: Illustration of the discretization scheme using a prestretched thread. (Online version in colour.)
Mentions: The DE is discretized using n three-dimensional rectangular cuboids, each with mass m, which remain rectangular during deformation; this is illustrated schematically in figure 5. We consider elements with natural length L in the planar directions, and T in the thickness direction. Elements are joined end-to-end in series to form a thread of length l, with fixed boundary conditions, prestretched in the length direction by a factor λ1,pre, and in the width direction by the fibre constraints. Elements are represented by two nodes constrained to displace along the thread length only.Figure 5.

Bottom Line: Cephalopods employ their chromomorphic skins for rapid and versatile active camouflage and signalling effects.The artificial skin is made from electroactive dielectric elastomer: a soft, planar-actuating smart material that we show can be effective at mimicking the actuation of biological chromatophores.The proposed system achieves dynamic pattern generation by imposing simple local rules into the artificial chromatophore cells so that they can sense their surroundings in order to manipulate their actuation.

View Article: PubMed Central - PubMed

Affiliation: Department of Engineering Mathematics, University of Bristol, Bristol BS8 1UB, UK uk.afishman@gmail.com.

No MeSH data available.