20 0 0 0 OA 摩擦の物理

著者
松川 宏
出版者
公益社団法人 日本表面科学会
雑誌
表面科学 (ISSN:03885321)
巻号頁・発行日
vol.24, no.6, pp.328-333, 2003-06-10 (Released:2009-02-22)
参考文献数
46
被引用文献数
4 3

Recent progress in the physical research of friction is reviewed. We discuss some mechanisms proposal for Amonton and Coulomb's law that is applied well in various systems. The energy dissipation process associated with dynamical friction is also discussed. New experimental techniques that aim to observe the sliding interfaces between solid surfaces and lubricants are introduced.
著者
松川 宏 大槻 道夫 中野 健
出版者
公益社団法人 日本表面科学会
雑誌
表面科学 (ISSN:03885321)
巻号頁・発行日
vol.36, no.5, pp.222-229, 2015-05-10 (Released:2015-05-26)
参考文献数
23
被引用文献数
1 1

It is widely believed that Amontons’ law of friction holds well in various systems. Here we show based on a numerical calculation and analytical theory that Amontons’ law breaks in viscoelastic materials under certain condition due to the precursor slip prior to the bulk sliding. It is also shown that instead of Amontons’ law new friction law holds, which states that the static friction coefficient decreases as a power functionof load with the power −1/3. The new friction law is verified by the experiment employing polymethyl-methacrylate. The relation between the critical length of the precursor and the static friction coefficient predicted by numerical calculation and analytical theory is also verified.