• Corpus ID: 220968825

Dynamic Stiction Caused by Friction Vector Rotation

@inproceedings{Nakano2020DynamicSC,
  title={Dynamic Stiction Caused by Friction Vector Rotation},
  author={Ken Nakano and Valentin L. Popov},
  year={2020}
}

• K. Nakano, V. Popov
• Published 4 August 2020
• Physics

We numerically study a simple sliding system: a rigid mass pulled by a spring having strong in-plane stiffness anisotropy and a small misalignment angle. Simulations show that the apparent “stick” phase in this system is in reality a phase of very slow creep, followed by rapid sliding, slip. Surprisingly, the absolute value of the friction force remains almost constant from the very beginning of the “stick” phase, merely rotating in the sliding plane. We call this specific mechanism of apparent stick due to rotation of the force vector “dynamic stiction”. Another interesting consequence of our model is the presence of high-frequency oscillations perpendicular to the pulling direction in the “dynamic stick” phase.