Mechanical Amorphization of Synthetic Fault Gouges During Rotary‐Shear Friction Experiments at Subseismic to Seismic Slip Velocities

2020 ◽  
Vol 125 (10) ◽  
Author(s):  
S. Kaneki ◽  
K. Oohashi ◽  
T. Hirono ◽  
H. Noda
Keyword(s):  
Seismic Slip ◽  
Rotary Shear ◽  
Shear Friction ◽  
Fault Gouges

scholarly journals Grain Size Sensitive Creep During Simulated Seismic Slip in Nanogranular Fault Gouges: Constraints From Transmission Kikuchi Diffraction (TKD)

2019 ◽  
Vol 124 (10) ◽  
pp. 10197-10209 ◽  
Author(s):  
Matteo Demurtas ◽  
Steven A. F. Smith ◽  
David J. Prior ◽  
Frank E. Brenker ◽  
Giulio Di Toro
Keyword(s):  
Grain Size ◽  
Seismic Slip ◽  
Fault Gouges

scholarly journals A rotary-shear low to high-velocity friction apparatus in Beijing to study rock friction at plate to seismic slip rates

2014 ◽  
Vol 27 (5) ◽  
pp. 469-497 ◽  
Author(s):  
Shengli Ma ◽  
Toshihiko Shimamoto ◽  
Lu Yao ◽  
Tetsuhiro Togo ◽  
Hiroko Kitajima
Keyword(s):  
High Velocity ◽  
Slip Rates ◽  
Rock Friction ◽  
Seismic Slip ◽  
Rotary Shear

Meso- to nano-scale evidence of fluid-assisted co-seismic slip along the normal Mt. Morrone Fault, Italy: Implications for earthquake hydrogeochemical precursors

2021 ◽  
Vol 568 ◽  
pp. 117010
Author(s):  
Martina Coppola ◽  
Alessandra Correale ◽  
Marino Domenico Barberio ◽  
Andrea Billi ◽  
Andrea Cavallo ◽  
...  
Keyword(s):  
Seismic Slip ◽  
Nano Scale ◽  
Hydrogeochemical Precursors

scholarly journals Shear Friction Characteristics and Modification Factor of Concrete Prepared Using Expanded Bottom Ash and Dredged Soil Granules

2019 ◽  
Vol 13 (1) ◽  
Author(s):  
Keun-Hyeok Yang ◽  
Kyung-Ho Lee
Keyword(s):  
Shear Crack ◽  
Bottom Ash ◽  
Lightweight Aggregate Concrete ◽  
Maximum Aggregate Size ◽  
Crack Plane ◽  
Upper Bound Theorem ◽  
Friction Characteristics ◽  
Dredged Soil ◽  
Shear Friction ◽  
Modification Factor

Abstract The objective of this study is to assess the shear friction characteristics of lightweight aggregate concrete (LWAC) prepared using artificially expanded bottom ash and dredged soil granules. A total of 37 concrete mixtures were prepared under the classification of three series. In the first and second series, the natural sand content for replacing lightweight fine aggregates and the water-to-cement ratio varied to obtain different densities and compressive strengths of concrete. The third series was designed to estimate the effect of the maximum aggregate size on the friction resistance along the shear crack plane of the monolithic interfaces. The frictional angle of the LWAC tested was formulated as a function of the ratio of the effective tensile and compressive strengths of concrete through the expansion of the integrated mathematical models proposed by Kwon et al., based on the upper-bound theorem of concrete plasticity. When predicting the shear friction strength of LWAC, the present mathematical model exhibits relatively good accuracy, yielding the mean and standard deviation of the ratios between experiments and predictions of 1.06 and 0.14, respectively, whereas the empirical equations proposed by the AASHTO provision and Mattock underestimated the results. Ultimately, an advanced modification factor for shear design of LWAC is proposed as a function of the density and compressive strength of concrete and the maximum size of aggregates.

scholarly journals Coseismic and early post-seismic slip associated with the 1999 Izmit earthquake (Turkey), from SAR interferometry and tectonic field observations

2003 ◽  
Vol 155 (1) ◽  
pp. 93-110 ◽  
Author(s):  
Ziyadin Çakir ◽  
Jean-Bernard de Chabalier ◽  
Rolando Armijo ◽  
Bertrand Meyer ◽  
Aykut Barka ◽  
...  
Keyword(s):  
Sar Interferometry ◽  
Field Observations ◽  
Seismic Slip ◽  
Izmit Earthquake

Shear-friction behavior of concrete-to-concrete interface under direct shear load

2021 ◽  
Vol 238 ◽  
pp. 112211
Author(s):  
Jin Xia ◽  
Kuang-yi Shan ◽  
Xiao-hui Wu ◽  
Run-li Gan ◽  
Wei-liang Jin
Keyword(s):  
Shear Load ◽  
Direct Shear ◽  
Friction Behavior ◽  
Shear Friction ◽  
Concrete Interface
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