Krittanon (Pond) Sirorattanakul
@seismopond.bsky.social
Earthquake scientist from Thailand || BS @LehighU 2018 || PhD @Caltech 2024 || Also love badminton and biking || he/him || ksirorat.people.caltech.edu
Those without subscription to Nature can read full-text article here: rdcu.be/ediAj
Thanks @springernature.com for the SharedIt initiative.
Thanks @springernature.com for the SharedIt initiative.
Sliding and healing of frictional interfaces that appear stationary
Nature - Digital image correlation measurements show that nominally stationary interfaces subjected to constant shear and normal loads are sliding at extremely small rates, confirming the...
rdcu.be
March 13, 2025 at 2:24 AM
Those without subscription to Nature can read full-text article here: rdcu.be/ediAj
Thanks @springernature.com for the SharedIt initiative.
Thanks @springernature.com for the SharedIt initiative.
(4/4) This work has wide-ranging applications in earthquakes, landslides, and material sciences. The longer you wait, the larger the peak friction in subsequent slip events, making seismic hazards healing-dependent.
March 13, 2025 at 2:24 AM
(4/4) This work has wide-ranging applications in earthquakes, landslides, and material sciences. The longer you wait, the larger the peak friction in subsequent slip events, making seismic hazards healing-dependent.
(3/4) We also find that the slip rates are decreasing logarithmically with time, down to 10^{-12} m/s after a few days. This decaying slip rate reflects healing, suggesting that the interfaces become stronger with time.
March 13, 2025 at 2:24 AM
(3/4) We also find that the slip rates are decreasing logarithmically with time, down to 10^{-12} m/s after a few days. This decaying slip rate reflects healing, suggesting that the interfaces become stronger with time.
(2/4) We mimic this system in our lab and consider the case where shear force is smaller than static friction. Contrary to the traditional understanding, we find that these interfaces are sliding, accumulating the slip of about 1/5 of hair width after 1 day.
March 13, 2025 at 2:24 AM
(2/4) We mimic this system in our lab and consider the case where shear force is smaller than static friction. Contrary to the traditional understanding, we find that these interfaces are sliding, accumulating the slip of about 1/5 of hair width after 1 day.
(1/4) Imagine a block on an inclined plane. If the incline is very small, the block would not move. One would have to tilt the incline plane upward until gravity overcomes the static friction. This is the traditional understanding of friction.
March 13, 2025 at 2:24 AM
(1/4) Imagine a block on an inclined plane. If the incline is very small, the block would not move. One would have to tilt the incline plane upward until gravity overcomes the static friction. This is the traditional understanding of friction.