title: Mechanical interlocking of cotton fibers on slightly textured surfaces of metallic cylinders.
abstract: Mechanical interlocking is widely applied in industry and general lives of human beings. In this work, we realized the control of locking or sliding states of cotton fibers on the metal surfaces with slightly different textures through traditional machining. Three types of sliding states, i.e., locking, one-way sliding, and two-way sliding have been achieved. It is found that the locking or sliding of the cotton fibers on the metallic cylinder depends on the friction coefficient and the ratio of cotton fiber diameter, 2r, to the height of the rough peaks, h, of metal surfaces. When the critical ratio h/r exceeds 1, the cotton fibers could tightly attach to the metallic surface through mechanical interlocking. This work provided a convenient and universal method for the control of interlocking or sliding of fiber-based materials on textured surfaces.
authors.affiliation: State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China.|School of Mechanical and Electrical Engineering, Key Laboratory of Modern Agricultural Engineering, Tarim University, Alar 843300, China.
authors.forename: Youqiang
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Tian
authors.affiliation: State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China.
authors.forename: Yonggang
authors.initials: Y
authors.lastname: Meng