Friction control based on bulk deformation of sliding material

2014 Fiscal Year Final Research Report

• Project/Area Number: 25820035
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Design engineering/Machine functional elements/Tribology
• Research Institution: Nagoya Institute of Technology
• Principal Investigator: MAEGAWA Satoru 名古屋工業大学, 工学(系)研究科(研究院), 研究員 (90637406)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: トライボロジー / ゴム / スティックスリップ / 接触面観察 / 真実接触部 / 透過光学系

Outline of Final Research Achievements

In-situ observations for a contact interface of sliding elastomers were performed by using a friction tester with a transmission optical system that can visualize the contact interface between a cross-linked poly-dimethyl siloxane (PDMS) specimen and rigid transparent plane. As a result, it was found that the mechanism of stick-slip in sliding friction of soft adhesive elastomers is quite different from that of other solid materials. Furthermore, the surface displacement filed within the apparent contact region was visualized using digital image correlation method. It provided a direct estimation of the tangential contact stiffness that resulted from the tangential deformation at the contacting asperities.

Free Research Field

トライボロジー