Theory of jamming transition

2016 Fiscal Year Final Research Report

• Project/Area Number: 25800220
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Mathematical physics/Fundamental condensed matter physics
• Research Institution: Shimane University
• Principal Investigator: Michio Otsuki 島根大学, 総合理工学研究科, 講師 (30456751)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Keywords: ジャミング転移 / 摩擦 / 粉体 / レオロジー

Outline of Final Research Achievements

Jamming is observed in dense particle assemblies, such as granular materials, colloidal suspensions, foams. To understand the rheological behavior of materials near the transition point, we investigate the various systems related with the jamming transition. For elastic behaviors of jammed materials, we have found critical scaling laws describing the shear modulus near the transition point. We also proposed a theory on the friction law of elastomer, which predict the decrease of the friction coefficient with increasing pressure. The theory is confirmed by experiments.

Free Research Field

非平衡物理学