Effect of surface roughness on attachment ability of locust Locusta migratoria manilensis

Effect of surface roughness on attachment ability of locust Locusta migratoria manilensis To explore how surface roughness affects locust׳s attachment ability, friction force of locust Locusta migratoria manilensis on substrates with variable roughness was measured with an insect micro-force measurement system. Extensive values of the friction force were acquired, respectively exhibiting the trends of inverted parabola variation, linear pattern growth and saturation period with the increased surface roughness. Obviously small values of the friction force were generated by locusts on substrates possessing a particular roughness range. The morphology and structure of locust attachment organ were examined and quantitively analyzed with a scanning electron microscope. Based on the acquired structure information, a schematic was proposed to explain the interaction between the attachment organ and the surface irregularity, also a mechanical analysis was conducted to present the effect of surface asperity on locust׳s claw tip. Results demonstrated that surface roughness with appropriate values can considerably reduce locust׳s attachment ability via simultaneously restricting the generation of mechanical interlock and adhesive attachment. The achieved conclusion gives a further interpretation to friction behavior of insect on variable substrates, also provides theory for biomimetic designing a slippery plate utilized for trapping plague locusts. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Wear Elsevier

Effect of surface roughness on attachment ability of locust Locusta migratoria manilensis

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Publisher
Elsevier
Copyright
Copyright © 2015 Elsevier B.V.
ISSN
0043-1648
eISSN
1873-2577
D.O.I.
10.1016/j.wear.2015.02.036
Publisher site
See Article on Publisher Site

Abstract

To explore how surface roughness affects locust׳s attachment ability, friction force of locust Locusta migratoria manilensis on substrates with variable roughness was measured with an insect micro-force measurement system. Extensive values of the friction force were acquired, respectively exhibiting the trends of inverted parabola variation, linear pattern growth and saturation period with the increased surface roughness. Obviously small values of the friction force were generated by locusts on substrates possessing a particular roughness range. The morphology and structure of locust attachment organ were examined and quantitively analyzed with a scanning electron microscope. Based on the acquired structure information, a schematic was proposed to explain the interaction between the attachment organ and the surface irregularity, also a mechanical analysis was conducted to present the effect of surface asperity on locust׳s claw tip. Results demonstrated that surface roughness with appropriate values can considerably reduce locust׳s attachment ability via simultaneously restricting the generation of mechanical interlock and adhesive attachment. The achieved conclusion gives a further interpretation to friction behavior of insect on variable substrates, also provides theory for biomimetic designing a slippery plate utilized for trapping plague locusts.

Journal

WearElsevier

Published: May 1, 2015

References

  • Ultrastructure of attachment specializations of hexapods (Arthropoda): evolutionary patterns inferred from a revised ordinal phylogeny
    Beutel, R.; Gorb, S.N.
  • The effect of surface roughness on the adhesion of elastic plates with application to biological systems
    Persson, B.N.; Gorb, S.N.
  • The effect of surface roughness on claw and adhesive hair performance in the dock beetle Gastrophysa viridula
    Bullock, J.M.R.; Federle, W.
  • Influence of surface roughness on gecko adhesion
    Huber, G.; Gorb, S.N.; Hosada, N.; Spolenak, R.; Arzt, E.

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