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Main Title: Adhesive Strength of Contacts of Rough Spheres
Author(s): Li, Qiang
Pohrt, Roman
Popov, Valentin L.
Type: Article
Language Code: en
Abstract: The adhesive contact between a parabolic indenter with superimposed roughness and an elastic half space is studied in the JKR-limit (infinitely small range of action of adhesive forces) using the boundary element method with mesh-dependent detachment criterion suggested in 2015. Three types of superimposed roughness are considered: one- and two-dimensional waviness and randomly rough roughness. It is shown that in the case of regular waviness, the character of adhesion is governed by the Johnson adhesion parameter. For our randomly rough surfaces a new adhesion parameter has been identified numerically, which uniquely determines the adhesive strength of the contact.
Issue Date: 26-Mar-2019
Date Available: 16-Apr-2019
DDC Class: 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
Subject(s): adhesion
wavy surface
rough surface
boundary element method
Sponsor/Funder: DFG, 414044773, Open Access Publizieren 2019 - 2020 / Technische Universität Berlin
BMBF, 13NKE011A, Verbundprojekt: Reifenabrieb in der Umwelt (RAU) - Teilvorhaben: Einflussfaktoren, Mengen, Vorkommen und Maßnahmen
Journal Title: Frontiers in Mechanical Engineering
Publisher: Frontiers Media
Publisher Place: Lausanne
Volume: 5
Article Number: 7
Publisher DOI: 10.3389/fmech.2019.00007
EISSN: 2297-3079
Appears in Collections:FG Systemdynamik und Reibungsphysik » Publications

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