caa a22 4500 463232526 CHVBK 20180405153246.0 cr unu---uuuuu 170326e20071101xx s 000 0 eng 10.1007/s10853-007-1759-7 doi (NATIONALLICENCE)springer-10.1007/s10853-007-1759-7 Effects of contact shape on biological wet adhesion [Elektronische Daten] [Yewang Su, Baohua Ji, Yonggang Huang, Kehchih Hwang] Wet adhesion is widely adopted in biological adhesion systems in nature. Wet adhesion is studied in this paper with the focus on the effect of different contact shapes (flat, concave, convex, and ring-like) on the adhesion force. The evolution of the liquid bridge between a fiber tip and substrate during the detaching process shows two transition points. The first transition from the radius-controlled to the contact-angle controlled process is critical to influence the strength and robustness of adhesion. We show that a concave shape is more effective than a flat one, while a convex shape has no advantage. A ring-like contact shape has advantages in a hydrophobic environment and on a rough surface. Springer Science+Business Media, LLC, 2007 Su Yewang Department of Engineering Mechanics, Tsinghua University, 100084, Beijing, China aut Ji Baohua Department of Engineering Mechanics, Tsinghua University, 100084, Beijing, China aut Huang Yonggang Department of Mechanical Science and Engineering, University of Illinois, 61801, Urbana, IL, USA aut Hwang Kehchih Department of Engineering Mechanics, Tsinghua University, 100084, Beijing, China aut Journal of Materials Science Springer US; http://www.springer-ny.com 42/21(2007-11-01), 8885-8893 0022-2461 42:21<8885 2007 42 10853 https://doi.org/10.1007/s10853-007-1759-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-007-1759-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Su Yewang Department of Engineering Mechanics, Tsinghua University, 100084, Beijing, China aut NATIONALLICENCE 700 1- Ji Baohua Department of Engineering Mechanics, Tsinghua University, 100084, Beijing, China aut NATIONALLICENCE 700 1- Huang Yonggang Department of Mechanical Science and Engineering, University of Illinois, 61801, Urbana, IL, USA aut NATIONALLICENCE 700 1- Hwang Kehchih Department of Engineering Mechanics, Tsinghua University, 100084, Beijing, China aut NATIONALLICENCE 773 0- Journal of Materials Science Springer US; http://www.springer-ny.com 42/21(2007-11-01), 8885-8893 0022-2461 42:21<8885 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer