Static Friction Coefficient Is Not a Material Constant

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Static friction coefficient is not a material constant.

The static friction coefficient between two materials is considered to be a material constant. We present experiments demonstrating that the ratio of shear to normal force needed to move contacting bodies can, instead, vary systematically with controllable changes in the external loading configuration. Large variations in both the friction coefficient and consequent stress drop are tightly link...

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ژورنال

عنوان ژورنال: Physical Review Letters

سال: 2011

ISSN: 0031-9007,1079-7114

DOI: 10.1103/physrevlett.106.254301