title: Adhesion failure at 180,000 frames per second: direct observation of the detachment process of a mushroom-shaped adhesive.
abstract: Nature has successfully evolved the mushroom-shaped contact geometry in many organisms in order to solve the attachment problem. We studied the detachment process of individual bioinspired artificial mushroom-shaped adhesive microstructures (MSAMSs) resolving the failure dynamics at high spatiotemporal resolution. The experimental data provide strong evidence for a homogeneous stress distribution in MSAMS, which was recently proposed. Our results allow us to explain the advantage of such contact geometry and provide a suggestion for the widely observed mushroom-shaped contact geometry.
authors.affiliation: Functional Morphology and Biomechanics, Zoological Institute, Kiel University, Am Botanischen Garten 1-9, 24118 Kiel, Germany.
authors.forename: Lars
authors.initials: L
authors.lastname: Heepe
authors.affiliation: Functional Morphology and Biomechanics, Zoological Institute, Kiel University, Am Botanischen Garten 1-9, 24118 Kiel, Germany.
authors.forename: Alexander E
authors.initials: AE
authors.lastname: Kovalev
authors.affiliation: Functional Morphology and Biomechanics, Zoological Institute, Kiel University, Am Botanischen Garten 1-9, 24118 Kiel, Germany and Donetsk Institute for Physics and Engineering of the National Academy of Sciences of the Ukraine, Donetsk 34083, Ukraine.
authors.forename: Alexander E
authors.initials: AE
authors.lastname: Filippov
authors.affiliation: Functional Morphology and Biomechanics, Zoological Institute, Kiel University, Am Botanischen Garten 1-9, 24118 Kiel, Germany.
authors.forename: Stanislav N
authors.initials: SN
authors.lastname: Gorb
mesh_terms: D000268:Adhesiveness; D000269:Adhesives / Q000737:chemistry*; D001696:Biomechanical Phenomena; D040761:Biomimetic Materials / Q000737:chemistry*; D008422:Materials Testing / Q000295:instrumentation / Q000379:methods; D013499:Surface Properties; D014741:Video Recording
chemical_list: D000269:Adhesives