title: Constitutive equation of friction based on the subloading-surface concept.
abstract: The subloading-friction model is capable of describing static friction, the smooth transition from static to kinetic friction and the recovery to static friction after sliding stops or sliding velocity decreases. This causes a negative rate sensitivity (i.e. a decrease in friction resistance with increasing sliding velocity). A generalized subloading-friction model is formulated in this article by incorporating the concept of overstress for viscoplastic sliding velocity into the subloading-friction model to describe not only negative rate sensitivity but also positive rate sensitivity (i.e. an increase in friction resistance with increasing sliding velocity) at a general sliding velocity ranging from quasi-static to impact sliding. The validity of the model is verified by numerical experiments and comparisons with test data obtained from friction tests using a lubricated steel specimen.
authors: MSC Software Ltd , Shinjuku First West 8F, 23-7 Nishishinjuku, 1-chome , Tokyo 160-0023, Japan.
authors: Koichi
authors: 0000-0003-1830-7767
authors: K
authors: Hashiguchi
authors: Department of Agricultural Engineering , University of the Ryukyus, 1 Senbaru , Nishihara, Okinawa 903-0213, Japan.
authors: Masami
authors: M
authors: Ueno
authors: Steel Research Laboratories , Nippon Steel and Sumitomo Metal Corporation, 20-1 Shintomi , Futtsu, Chiba 293-8511, Japan.
authors: Takuya
authors: T
authors: Kuwayama
authors: Steel Research Laboratories , Nippon Steel and Sumitomo Metal Corporation, 20-1 Shintomi , Futtsu, Chiba 293-8511, Japan.
authors: Noriyuki
authors: N
authors: Suzuki
authors: Steel Research Laboratories , Nippon Steel and Sumitomo Metal Corporation, 20-1 Shintomi , Futtsu, Chiba 293-8511, Japan.
authors: Shigeru
authors: S
authors: Yonemura
authors: Steel Research Laboratories , Nippon Steel and Sumitomo Metal Corporation, 20-1 Shintomi , Futtsu, Chiba 293-8511, Japan.
authors: Nobuo
authors: N
authors: Yoshikawa
keywords: friction; overstress model; rate sensitivity; sliding; subloading-surface model