Non-monotonic Dynamics in the Onset of Frictional Slip
The transition from static to dynamic friction is often described as a fracture instability. However, studies on slow sliding processes aimed at understanding frictional instabilities and earthquakes report slow friction transients that are usually explained by empirical rate-and-state formulations....
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Springer
2022
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| Subjects: | |
| Online Access: | View Fulltext in Publisher |
| Summary: | The transition from static to dynamic friction is often described as a fracture instability. However, studies on slow sliding processes aimed at understanding frictional instabilities and earthquakes report slow friction transients that are usually explained by empirical rate-and-state formulations. We perform very slow (∼ nm/s) macroscopic-scale sliding experiments and show that the onset of frictional slip is governed by continuous non-monotonic dynamics originating from a competition between contact aging and shear-induced rejuvenation. This allows to describe both our non-monotonic dynamics and the simpler rate-and-state transients with a single evolution equation. © 2022, The Author(s). |
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| ISBN: | 10238883 (ISSN) |
| DOI: | 10.1007/s11249-022-01598-z |