Crossover from creep to inertial motion in friction dynamics

Baumberger, Tristan; Heslot, F.; Perrin, Bernard

doi:10.1038/367544a0

Cited by 185 publications

(133 citation statements)

References 8 publications

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“…In general, a bifurcation from stick-slip to stable sliding is observed as the system loading rate increases (e.g. Baumberger et al, 1994). A similar transition from potentially seismic to aseismic behaviour has been speculatively applied to subduction megathrusts, where the observed earthquake magnitude decreases with depth and the subsequent switch off at the downdip limit of the seismogenic zone may be explained by a progressive decrease in the viscosity of the upper plate (Namiki et al, 2014) or by the progressive smoothing of the interplate roughness (Voisin et al, 2008;Corbi et al, 2011).…”

Section: Seismic Versus Aseismic Faultingmentioning

confidence: 99%

Analogue earthquakes and seismic cycles: experimental modelling across timescales

2017

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Abstract. Earth deformation is a multi-scale process ranging from seconds (seismic deformation) to millions of years (tectonic deformation). Bridging short-and long-term deformation and developing seismotectonic models has been a challenge in experimental tectonics for more than a century. Since the formulation of Reid's elastic rebound theory 100 years ago, laboratory mechanical models combining frictional and elastic elements have been used to study the dynamics of earthquakes. In the last decade, with the advent of high-resolution monitoring techniques and new rock analogue materials, laboratory earthquake experiments have evolved from simple spring-slider models to scaled analogue models. This evolution was accomplished by advances in seismology and geodesy along with relatively frequent occurrences of large earthquakes in the past decade. This coincidence has significantly increased the quality and quantity of relevant observations in nature and triggered a new understanding of earthquake dynamics. We review here the developments in analogue earthquake modelling with a focus on those seismotectonic scale models that are directly comparable to observational data on short to long timescales. We lay out the basics of analogue modelling, namely scaling, materials and monitoring, as applied in seismotectonic modelling. An overview of applications highlights the contributions of analogue earthquake models in bridging timescales of observations including earthquake statistics, rupture dynamics, ground motion, and seismic-cycle deformation up to seismotectonic evolution.

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Section: Seismic Versus Aseismic Faultingmentioning

confidence: 99%

Analogue earthquakes and seismic cycles: experimental modelling across timescales

2017

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“…Finally, it can be mentioned that the weakly nonlinear study of such oscillators may provide experimentalists with additional useful constraints for the identification of rate-and-state friction models, from tracking the possible behaviour change of the stick-slip Hopf bifurcation as reported in [41,56]. Deeper inside the stick-slip domain, when the full nonlinear regime is attained, it is also possible that the location of further bifurcations of periodic orbits and the cartography of the transitions between regimes may also give useful discriminating information.…”

Section: Case Studies (A) Rate-and-state Friction and The Mass-springmentioning

confidence: 99%

“…Furthermore, a set of parameter values have been fitted to measurements by Baumberger and co-workers [40,56] on the friction behaviour of a paper product known as Bristol board. These values are listed in table 1.…”

Section: (D) Other Measurements Other State Variablesmentioning

confidence: 99%

Are there reliable constitutive laws for dynamic friction?

Woodhouse

Putelat

McKay

2015

Phil. Trans. R. Soc. A.

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Structural vibration controlled by interfacial friction is widespread, ranging from friction dampers in gas turbines to the motion of violin strings. To predict, control or prevent such vibration, a constitutive description of frictional interactions is inevitably required. A variety of friction models are discussed to assess their scope and validity, in the light of constraints provided by different experimental observations. Three contrasting case studies are used to illustrate how predicted behaviour can be extremely sensitive to the choice of frictional constitutive model, and to explore possible experimental paths to discriminate between and calibrate dynamic friction models over the full parameter range needed for real applications.

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“…Loading machines stiffer than a critical stiffness k crit will produce stable sliding, and those more compliant than k crit will reliably produce DSEs (stick slips) [Dieterich, 1978;Ruina, 1983]. Machines which operate close to k crit produce a more varied and less predictable response [e.g., Baumberger et al, 1994]. In the current experiments, we observe both quasi-stable slip and DSEs, so we believe that we are operating relatively close a Column descriptions from left to right: DSE name, imposed confining pressure, imposed load point displacement rate, cumulative fault slip just prior to the DSE, fault slip during the DSE, shear stress resolved on the simulated fault just prior to the DSE, change in shear stress resolved on the fault during the DSE assuming that unloading stiffness is equal to loading stiffness, amplitude of the DSE-initiating AE, total number of precursory AEs above completeness threshold A complete , cumulative M 0 of those events assuming M 0 = αA 0 , and α = 0.22 Nm/V, inferred fault slip in the final 20 s prior to the DSE as described in section 3.5.…”

Section: General Observationsmentioning

confidence: 99%

Preslip and cascade processes initiating laboratory stick slip

2014

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Recent modeling studies have explored whether earthquakes begin with a large aseismic nucleation process or initiate dynamically from the rapid growth of a smaller instability in a "cascade-up" process. To explore such a case in the laboratory, we study the initiation of dynamic rupture (stick slip) of a smooth saw-cut fault in a 76 mm diameter cylindrical granite laboratory sample at 40-120 MPa confining pressure. We use a high dynamic range recording system to directly compare the seismic waves radiated during the stick-slip event to those radiated from tiny (M À6) discrete seismic events, commonly known as acoustic emissions (AEs), that occur in the seconds prior to each large stick slip. The seismic moments, focal mechanisms, locations, and timing of the AEs all contribute to our understanding of their mechanics and provide us with information about the stick-slip nucleation process. In a sequence of 10 stick slips, the first few microseconds of the signals recorded from stick-slip instabilities are nearly indistinguishable from those of premonitory AEs. In this sense, it appears that each stick slip begins as an AE event that rapidly (~20 μs) grows about 2 orders of magnitude in linear dimension and ruptures the entire 150 mm length of the simulated fault. We also measure accelerating fault slip in the final seconds before stick slip. We estimate that this slip is at least 98% aseismic and that it both weakens the fault and produces AEs that will eventually cascade-up to initiate the larger dynamic rupture.

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Crossover from creep to inertial motion in friction dynamics

Cited by 185 publications

References 8 publications

Analogue earthquakes and seismic cycles: experimental modelling across timescales

Analogue earthquakes and seismic cycles: experimental modelling across timescales

Are there reliable constitutive laws for dynamic friction?

Preslip and cascade processes initiating laboratory stick slip

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