Beetle-inspired adhesion by capillary-bridge arrays: pull-off detachment

Autor:	David Slater, Ashley Macner, Michael Vogel, Paul H. Steen
Rok vydání:	2012
Předmět:	Surface tension Materials science Mechanics of Materials Capillary action Materials Chemistry Surfaces and Interfaces General Chemistry Adhesive Adhesion Composite material Bridge (interpersonal) Pull-off Surfaces Coatings and Films
Zdroj:	Journal of Adhesion Science and Technology. 28:273-289
ISSN:	1568-5616 0169-4243
DOI:	10.1080/01694243.2012.705472
Popis:	Adhesion by capillarity (‘wet’ adhesion) depends on the surface tension of an array of many small liquid bridges acting simultaneously against a substrate. A particular leaf beetle has been previously shown to defend itself using wet adhesion, and a man-made device, inspired by this beetle, has been previously demonstrated to exhibit electronically controlled switchable wet adhesion. In both cases, measurements of detachment under load have been reported as pull-off strengths. In this paper, we pose models for pull-off failure of adhesion and discuss the predictions of these models in relationship to available observations. The focus is on the role of array geometry and how net adhesive failure relates to the instability of a single liquid bridge.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::12e68f616f108d3e8a6b6bc1cb33e96e https://doi.org/10.1080/01694243.2012.705472 Zobrazit plný text záznamu