Friction weakening by mechanical vibrations: A velocity-controlled process
نویسندگان
چکیده
منابع مشابه
Suppression of friction by mechanical vibrations.
Mechanical vibrations are known to affect frictional sliding and the associated stick-slip patterns causing sometimes a drastic reduction of the friction force. This issue is relevant for applications in nanotribology and to understand earthquake triggering by small dynamic perturbations. We study the dynamics of repulsive particles confined between a horizontally driven top plate and a vertica...
متن کاملConditions under which Velocity-Weakening Friction Allows a Self-healing versus a Cracklike Mode of Rupture
Slip rupture processes on velocity-weakening faults have been found in simulations to occur by two basic modes, the expanding crack and self-healing modes. In the expanding crack mode, as the rupture zone on a fault keeps expanding, slip continues growing everywhere within the rupture. In the self-healing mode, rupture occurs as a slip pulse propagating along the fault, with cessation of slip b...
متن کاملCracks, pulses and macroscopic asymmetry of dynamic rupture on a bimaterial interface with velocity-weakening friction
S U M M A R Y We study in-plane ruptures on a bimaterial fault governed by a velocity-weakening friction with a regularized normal stress response. Numerical simulations and analytical estimates provide characterization of the ranges of velocity-weakening scales, nucleation lengths and background stresses for which ruptures behave as cracks or pulses, decaying or sustained, bilateral or unilate...
متن کاملTactile perception by friction induced vibrations
When a finger moves to scan the surface of an object (haptic sensing), the sliding contact generates vibrations that propagate in the finger skin activating the receptors (mechanoreceptors) located in the skin, allowing the brain to identify objects and perceive information about their properties. The information about the surface of the object is transmitted through vibrations induced by frict...
متن کاملTidal modulation and back-propagating fronts in slow slip events simulated with a velocity-weakening to velocity-strengthening friction law
[1] We examine tidal modulation and back-propagating fronts in simulated slow slip events using a rate and state friction law that is steady state velocity weakening at low slip rates and velocity strengthening at high slip rates. Tidal forcing causes a quasi-sinusoidal modulation of the slip rate during the events, with the maximum moment rate occurring close to or slightly after the maximum a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The European Physical Journal E
سال: 2019
ISSN: 1292-8941,1292-895X
DOI: 10.1140/epje/i2019-11855-2