The Dynamics of the Onset of Frictional Slip

Ben-David, Oded; Cohen, Gil; Fineberg, Jay

doi:10.1126/science.1194777

Cited by 273 publications

(409 citation statements)

References 30 publications

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“…When loaded ballistically, super-shear states are observed only for relatively high projectile velocities [151], whereas in frictional sliding super-shear ruptures are initiated when the initial shear stresses are very large (e.g. when the "friction coefficient" is significantly greater than µ s 0.6 in PMMA [141] or granite [152]). In addition to laboratory experiments and simulations, there is growing evidence that super-shear propagation can occur in earthquakes [156,[204][205][206][207] which are often associated with extreme damage.…”

Section: Fig 12mentioning

confidence: 99%

“…Super-shear cracks have long been considered in the fracture literature [3,199,200], but until they were observed in the beautiful experiments by Rosakis and coworkers [151], they were often considered to be of purely theoretical value. Since this first observation in weakly bonded homogeneous blocks that were ballistically loaded, mode II super-shear ruptures have been observed numerically [201][202][203] as well as in a variety of other scenarios that include frictional interfaces and quasi-static loading [141,146,149,152].…”

Section: Fig 12mentioning

confidence: 99%

“…As shown in Fig. 9, these new experiments have revealed various rupture modes that are loosely classified as follows: slow ruptures, which propagate far below the material wave speeds [141,[146][147][148], "sub-Rayleigh" ruptures [141,146,147,149] that propagate up to the Rayleigh wave-speed c R , and "super-shear" rupture modes that surpass the shear wave-speed c s [141,146,[149][150][151][152]. It is important to note that analogs of all of these rupture modes have been documented in natural earthquakes [144,145,[153][154][155][156].…”

Section: The Dynamics Of Frictional Interfaces: On the Relation Bmentioning

confidence: 99%

“…What is the origin and nature of the experimentally observed "slow fronts" [141,146]? Recent theoretical work has suggested that they may be a direct result of the qualitative form of the friction law at the interface; the frictional constitutive law can also affect the existence and nature of propagating rupture fronts.…”

Section: The Dynamics Of Frictional Interfaces: On the Relation Bmentioning

confidence: 99%

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Recent developments in dynamic fracture: some perspectives

Fineberg

Bouchbinder

2015

Int J Fract

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We briefly review a number of important recent experimental and theoretical developments in the field of dynamic fracture. Topics include experimental validation of the equations of motion for straight tensile cracks (in both infinite media and strip geometries), validation of a new theoretical description of the near-tip fields of dynamic cracks incorporating weak elastic nonlinearities, a new understanding of dynamic instabilities of tensile cracks in both 2D and 3D, crack front dynamics, and the relation between frictional motion and dynamic shear cracks. Related future research directions are briefly discussed.

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Section: Fig 12mentioning

confidence: 99%

Section: Fig 12mentioning

confidence: 99%

Section: The Dynamics Of Frictional Interfaces: On the Relation Bmentioning

confidence: 99%

Section: The Dynamics Of Frictional Interfaces: On the Relation Bmentioning

confidence: 99%

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Recent developments in dynamic fracture: some perspectives

Fineberg

Bouchbinder

2015

Int J Fract

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“…Several laboratory experiments have been conducted to explore the mechanism of frictional slip at a range of slip rates, with and without gouges and under the effects of temperature, normal and pore pressures [2,[4][5][6]. The experimental configurations include uniaxial compression [7,8], biaxial compression [4,9], triaxial compression [10][11][12], direct-shear [5,[13][14][15], double direct-shear [16][17][18] and rotary shear [6,19].…”

Section: Introductionmentioning

confidence: 99%

A Dynamic-induced Direct-shear Model for Dynamic Triggering of Frictional Slip on Simulated Granular Gouges

Zhao

2013

Exp Mech

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This study presents a dynamic-induced direct-shear model to investigate the dynamic triggering of frictional slip on simulated granular gouges. An incident P-wave is generated as a shear load and a normal stress is constantly applied on the gouge layer. The shear stress accumulates in the incident stage and the frictional slip occurs in the slip stage without the effect of the reflected wave. The experimental results show a non-uniform shear stress distribution along the gouge layer, which may be induced by a shear load induced torque and by normal stress vibration along the layer. The shear stress at the trailing edge strongly affects the frictional slip along the P-wave loading direction, while the rebound stress at the leading edge propagates along the opposite direction. The frictional slip is triggered when the maximum shear stress at the trailing edge reaches a critical value. The normal stress influences the maximum shear stress at the trailing edge, the maximum slip displacement and the slip velocity. The advantages and the limitations of this model are discussed at the end.

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Effect of fault heterogeneity on rupture dynamics: An experimental approach using ultrafast ultrasonic imaging

et al. 2013

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[1] This study is devoted to the experimental investigation of the interaction of a propagating rupture with one or several mechanical heterogeneities. We developed a friction laboratory experiment where a soft elastic solid slides past a rigid flat plate. The system is coupled to an original medical imaging technique, ultrasound speckle interferometry, that allows observing the rupture dynamics as well as the emitted elastic shear wavefield into the solid body. We compare the dynamics of propagating rupture for a homogeneous flat interface and for three cases of heterogeneous sliding surfaces: (1) an interface with a single point-like barrier made of a small rock pebble, (2) an interface with a single linear barrier that joins the edges of the faults in a direction perpendicular to slip, and (3) an interface with multiple barriers disposed on half of its surface area, creating a heterogeneous zone. We obtain experimental observations of dynamic effects that have been predicted by numerical dynamic rupture simulations and provide experimental observations of the following phenomena: a barrier can stop or delay the rupture propagation; a linear single barrier can change the rupture velocity, increasing or decreasing it; we observe transition from subshear to supershear propagation due to the linear barrier; a large heterogeneous area slows down the rupture propagation. We observe a strong variability of the rupture dynamics occurring for identical frictional conditions, which we impute to heterogeneity of the stress field due to both the loading conditions and memory of the stress field due to previous rupture events.

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The Dynamics of the Onset of Frictional Slip

Cited by 273 publications

References 30 publications

Recent developments in dynamic fracture: some perspectives

Recent developments in dynamic fracture: some perspectives

A Dynamic-induced Direct-shear Model for Dynamic Triggering of Frictional Slip on Simulated Granular Gouges

Effect of fault heterogeneity on rupture dynamics: An experimental approach using ultrafast ultrasonic imaging

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