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1. Perspective: Lessons Learned, Challenges, and Opportunities in Quantifying Cohesive Soil Erodibility with the Jet Erosion Test (JET)

Author:
Garey A. Fox; Lucie Guertault; Celso Castro-Bolinaga; Peter Allen; Kari A. Bigham; Stephane Bonelli; Sherry Lynn Hunt; Kayla Kassa; Eddy J. Langendoen; Erin Porter; Iman Shafii; Tony Wahl; Tess Wynn Thompson
Source:
Journal of the ASABE v.65 no.2 pp. 197-207
ISSN:
2769-3287
Subject:
shear stress,   etc   ; erodibility; hydrodynamics;     Show all 3 Subjects
Abstract:
... HighlightsThe JET is a key instrument for in situ and laboratory measurement of soil erodibility.Operation and reporting guidelines are needed to ensure consistency across JETs and applications.JET design improvements and hydrodynamic studies are needed to inform proper analyses and limit operator effects.Erodibility databases should be developed that report JET, soil, and fluid properties. Keywor ...
DOI:
10.13031/ja.14714

2. Residual state rate effects of shear-zone soil regulating slow-to-fast transition of catastrophic landslides

Author:
Xuan Kang; Shun Wang; Wei Wu; Guangli Xu
Source:
Engineering geology 2022 v.304 pp. 106692
ISSN:
0013-7952
Subject:
shear stress,   etc   ; landslides; soil;     Show all 3 Subjects
Abstract:
... Catastrophic landslides with basal shear zones usually involve a number of mechanisms that are poorly understood. One mechanism issue is the transition from slow sliding to fast movement, leading to catastrophic failure. We perform laboratory experiments on landslide shear-zone materials to investigate how rate effects influence the slow-to-fast transition. Two types of ring-shear tests are carrie ...
DOI:
10.1016/j.enggeo.2022.106692

3. Elucidation of a lingual detection mechanism for high-viscosity solutions in humans

Author:
Brittany L. Miles; Zhenxing Wu; Kelly S. Kennedy; Kai Zhao; Christopher T. Simons
Source:
Food & function 2022 v.13 no.1 pp. 64-75
ISSN:
2042-650X
Subject:
shear stress,   etc   ; deformation; models; tongue; viscosity;     Show all 5 Subjects
Abstract:
... While perception of high-viscosity solutions (η > 1000 cP) is speculated to be linked to filiform papillae deformation, this has not been demonstrated psychophysically. Presently, just-noticeable-viscosity-difference thresholds were determined using the forced-choice staircase method and high-viscosity solutions (η = 4798–12260 cP) with the hypotheses that the tongue would be chiefly responsible f ...
DOI:
10.1039/d1fo02460d
CHORUS:
10.1039/d1fo02460d

4. An experimental evaluation of the blocks in floodplain on hydraulic characteristics of flow in a meandering compound channel

Author:
Mohammad Naghavi; Mirali Mohammadi; Ghorban Mahtabi
Source:
Journal of hydrology 2022 v.612 pp. 127976
ISSN:
0022-1694
Subject:
shear stress,   etc   ; floodplains; fluid mechanics; hydrology;     Show all 4 Subjects
Abstract:
... In this research, the main flow behaviors in the meandering compound channels with different densities of two side blocks on the floodplains were investigated by using laboratory experiments at the three relative depths of 0.29, 0.39 and 0.49 and the corresponding discharges. The results show that the blocks density on the floodplain has a significant effect on the flow behavior in the main channe ...
DOI:
10.1016/j.jhydrol.2022.127976

5. Effect of joint microcharacteristics on macroshear behavior of single-bolted rock joints by the numerical modelling with PFC

Author:
Yifan Chen; Hang Lin; Shijie Xie; Xuran Ding; Dongliang He; Weixun Yong; Feng Gao
Source:
Environmental earth sciences 2022 v.81 no.10 pp. 276
ISSN:
1866-6280
Subject:
shear stress,   etc   ; extrusion; friction; shear strength;     Show all 4 Subjects
Abstract:
... Joint properties play a controlling role in the strength of rock mass. In response to the situation that existing researches on bolting mechanism of bolted rock joints principally concentrate on the macroelements, such as rock properties, bolting angle and joint morphology, the direct shear tests on unbolted and single-bolted rock joints under the conditions of different normal stress and differen ...
DOI:
10.1007/s12665-022-10411-y

6. Numerical analysis of wall shear stress in a rotating drum based on two fluid model

Author:
Wenjie Rong; Baokuan Li; Yuqing Feng; Tao Song; Fengsheng Qi; Zhongqiu Liu
Source:
Powder technology 2022 v.408 pp. 117716
ISSN:
0032-5910
Subject:
shear stress,   etc   ; friction; models; momentum; technology;     Show all 5 Subjects
Abstract:
... A better understanding of the interaction between particle and the wall in rotating drums is of great interest. Two Fluid Model (TFM) coupled with kinetic theory of granular flow (KTGF) is used for investigating the wall shear stress of particle phase in a rotating drum. The distribution characteristic of wall shear stress and the effects of operation parameters and contact parameters on wall shea ...
DOI:
10.1016/j.powtec.2022.117716

7. The Role of Background Stress State in Fluid‐Induced Aseismic Slip and Dynamic Rupture on a 3‐m Laboratory Fault

Author:
S. B. L. Cebry; C.‐Y. Ke; G. C. McLaskey
Source:
Journal of geophysical research 2022 v.127 no.8 pp. e2022JB024371
ISSN:
2169-9313
Subject:
shear stress,   etc   ; geophysics; granite; research; tectonics;     Show all 5 Subjects
Abstract:
... Fluid injection stimulates seismicity far from active tectonic regions. However, the details of how fluids modify on‐fault stresses and initiate seismic events remain poorly understood. We conducted laboratory experiments using a biaxial loading apparatus with a 3 m saw‐cut granite fault and compared events induced at different levels of background shear stress. Water was injected at 10 mL/min and ...
DOI:
10.1029/2022JB024371

8. Seismic Sources in Stress‐Induced Anisotropic Media

Author:
Wenqiang Li; Hengshan Hu
Source:
Journal of geophysical research 2022 v.127 no.7 pp. e2021JB023915
ISSN:
2169-9313
Subject:
shear stress,   etc   ; anisotropy; geophysics; isotropy; research;     Show all 5 Subjects
Abstract:
... Rocks in the upper mantle are extensively subjected to initial stress. The rock exhibits elastic anisotropy under the deviatoric stress, which affects the seismic response of underground structures. This paper aims to study the effect of stress‐induced anisotropy on the seismic source. The seismic moment tensor generated by a shear faulting in a homogeneous isotropic medium with initial stress is ...
DOI:
10.1029/2021JB023915

9. Prediction of the peak and steady-state ply–ply friction response for UD C/PAEK tapes

Author:
E.R. Pierik; W.J.B. Grouve; S. Wijskamp; R. Akkerman
Source:
Composites 2022 v.163 pp. 107185
ISSN:
1359-835X
Subject:
shear stress,   etc   ; friction; prediction; thermoplastics; viscosity;     Show all 5 Subjects
Abstract:
... Excessive ply–ply friction can lead to process-induced defects during the hot press forming of thermoplastic composite laminates. Process simulations can be used to enable first-time-right defect-free manufacturing. However, a good understanding of the ply–ply friction is required to improve the constitutive models to allow simulation of more complex parts. We performed friction experiments on UD ...
DOI:
10.1016/j.compositesa.2022.107185

10. Determination of Parameters Characteristic of Dynamic Weakening Mechanisms During Seismic Faulting in Cohesive Rocks

Author:
C. Cornelio; E. Spagnuolo; S. Aretusini; S. Nielsen; F. Passelègue; M. Violay; M. Cocco; G. Di Toro
Source:
Journal of geophysical research 2022 v.127 no.7 pp. e2022JB024356
ISSN:
2169-9313
Subject:
shear stress,   etc   ; basalt; geophysics; heat; models; research;     Show all 6 Subjects
Abstract:
... While sliding at seismic slip‐rates of ∼1 m/s, natural faults undergo an abrupt decrease of shear stress called dynamic weakening. Asperity‐scale (<
DOI:
10.1029/2022JB024356

11. Discrete element modelling of the yam root–soil complex and its verification

Author:
Yueguang Liu; Jianguo Zhao; Baozhong Yin; Zhikai Ma; Jianjun Hao; Xin Yang; Xiaojing Feng; Yuejin Ma
Source:
Biosystems engineering 2022 v.220 pp. 55-72
ISSN:
1537-5110
Subject:
shear stress,   etc   ; simulation models; surface area; yams;     Show all 4 Subjects
Abstract:
... This paper constructs a discrete element simulation model of yam based on a bimodal model and uniform grid coordinates and performs parameter calibration on the simulation model based on three mechanical properties. The bonding parameters are: normal stiffness per unit area 8.0684 × 10⁷ N·m⁻³, shear stiffness per unit area 2.0314 × 10⁷ N·m⁻³, critical normal stress 1.2876 × 10⁷ Pa and critical she ...
DOI:
10.1016/j.biosystemseng.2022.05.002

12. The 2021 Mw7.0 and Mw6.7 Miyagi‐Oki Earthquakes Nucleated in a Deep Seismic/Aseismic Transition Zone: Possible Effects of Transient Instability Due To the 2011 Tohoku Earthquake

Author:
Keisuke Yoshida; Toru Matsuzawa; Naoki Uchida
Source:
Journal of geophysical research 2022 v.127 no.8 pp. e2022JB024887
ISSN:
2169-9313
Subject:
shear stress,   etc   ; Japan; earthquakes; energy; geophysics; research;     Show all 6 Subjects
Abstract:
... In March and May 2021, Mw7.0 and Mw6.7, respectively, deep interplate earthquakes occurred off Miyagi, Japan, near the downdip edge of the rupture area of the 2011 M9 Tohoku earthquake. We study the two Mw ∼ 7 earthquakes to investigate how a great (Mw ∼ 9) earthquake cycle impacts the generation of smaller (Mw7‐8) earthquakes in the deep seismic/aseismic transition zone. Our hypocenter relocation ...
DOI:
10.1029/2022JB024887

13. Modeling shear behavior of sand-clay interfaces through two-dimensional distinct element method analysis

Author:
Zhong-Liang Zhang; Zhen-Dong Cui; Ling-Zi Zhao
Source:
Environmental earth sciences 2022 v.81 no.5 pp. 140
ISSN:
1866-6280
Subject:
shear stress,   etc   ; deformation; friction; geometry; shear strength;     Show all 5 Subjects
Abstract:
... This study presents a numerical investigation of the shear strength and deformation behaviors of sand-clay interfaces through the distinct element method (DEM). Numerical direct shearing modeling was carried out in PFC2D (particle flow code), considering the effects of the interface geometry, stiffness ratio, friction coefficient, and soil properties. Results indicate that the interface shear stre ...
DOI:
10.1007/s12665-022-10244-9

14. Predictive capability of actuator disk models for wakes of different wind turbine designs

Author:
Guodan Dong; Zhaobin Li; Jianhua Qin; Xiaolei Yang
Source:
Renewable energy 2022 v.188 pp. 269-281
ISSN:
0960-1481
Subject:
shear stress,   etc   ; kinetic energy; models; wind turbines;     Show all 4 Subjects
Abstract:
... To evaluate the predictive capability of the actuator disk (AD) models in simulating wakes of different wind turbine designs, we compare the results of the AD simulation with those of the actuator surface (AS) simulation for the EOLOS, NREL and a variant of the NREL (i.e., NREL-V) wind turbine designs. Two types of AD models are considered, i.e., the AD-R and AD-NR models corresponding to the AD m ...
DOI:
10.1016/j.renene.2022.02.034

15. Centrifugal Force-Induced Alignment in the Self-Assembly of Block Copolymers

Author:
Hyun Su Yun; Dong Hwan Kim; Hong Gu Kwon; Hong Kyoon Choi
Source:
Macromolecules 2022 v.55 no.11 pp. 4305-4312
ISSN:
1520-5835
Subject:
shear stress,   etc   ; centrifuges; composite polymers; forces; methodology;     Show all 5 Subjects
Abstract:
... In this study, a facile method is introduced for fabricating unidirectional block copolymer (BCP) self-assembly patterns induced by centrifugal force. Centrifugal force can be easily applied and manipulated but has never been used to control the orientation of soft matter, including BCP. During centrifugal force-induced self-assembly, the centrifugal force acts as a shear force in the BCP film to ...
DOI:
10.1021/acs.macromol.2c00325

16. Classification of Scouring Form of Homogeneous and Sticky Earth Dams in Overtopping

Author:
S. salehi; A.R Esmaili; K. Esmaili
Source:
̒Ulūm-i āb va khāk 2022 v.25 no.4 pp. 283-298
ISSN:
2476-5554
Subject:
shear stress,   etc   ; dams (hydrology); models; sediments; streams;     Show all 5 Subjects
Abstract:
... The objective of this study was to investigate how the earth dam is destroyed due to the effect of upstream and downstream slope of the body in overflow conditions. Therefore, eight models were provided that each model is constructed from the embankment dam with different upstream and downstream slopes (1:1, 2:1) and the soil properties (Sc) on breach formation. The time and method of dam break fo ...

17. Low maintenance gravity-driven membrane filtration using hollow fibers: Effect of reducing space for biofilm growth and control strategies on permeate flux

Author:
Deborah Stoffel; Elvira Rigo; Nicolas Derlon; Christian Staaks; Martin Heijnen; Eberhard Morgenroth; Céline Jacquin
Source:
Science of the total environment 2022 v.811 pp. 152307
ISSN:
0048-9697
Subject:
shear stress,   etc   ; biofilm; biopolymers; environment; microfiltration; ultrafiltration;     Show all 6 Subjects
Abstract:
... The implementation of centralized drinking water treatment systems necessitates lower operational costs and improved biopolymer removal during ultrafiltration (UF), which can be afforded by gravity-driven membrane (GDM) filtration. However, prior to implementing GDM filtration in centralized systems, biofilm growth in compacted membrane configurations, such as inside-out hollow fiber (HF), and its ...
DOI:
10.1016/j.scitotenv.2021.152307

18. Shear lid motion in DEM shear calibration and the effect of particle rearrangement on the internal friction angle

Author:
Jan Nečas; Jiří Rozbroj; Jakub Hlosta; Jan Diviš; Jiří Kaprálek; David Žurovec; Jiří Zegzulka
Source:
Powder technology 2022 v.403 pp. 117417
ISSN:
0032-5910
Subject:
shear stress,   etc   ; friction; modulus of elasticity; technology;     Show all 4 Subjects
Abstract:
... Shear cell tests are now commonly applied in particulate calibration procedures for the discrete element method. Usually, only the shear stresses at the shear plane in the particle bed are examined in short-time instances. This work aimed to find the regularities between the internal friction angle, the vertical position of the shear lid, and the rearrangements of particles in the layers during th ...
DOI:
10.1016/j.powtec.2022.117417

19. Rheological response of compressible SMCs under various deformation kinematics: Experimental aspects and simple modelling approach

Author:
D. Ferré-Sentis; P.J.J. Dumont; L. Orgéas; F. Martoïa; M. Sager
Source:
Composites 2022 v.154 pp. 106774
ISSN:
1359-835X
Subject:
shear stress,   etc   ; deformation; isotropy; kinematics; microstructure; models; rheometers;     Show all 7 Subjects
Abstract:
... Flow conditions during compression moulding of Sheet Moulding Compounds (SMCs) govern the microstructure and the resulting mechanical properties of composite parts. Low-density and high-fibre content SMCs were subjected to simple compression, œdometric compression and through-thickness shear loadings, using dedicated rheometers. Simple compression and œdometric compression experiments revealed the ...
DOI:
10.1016/j.compositesa.2021.106774

20. Estimation of Bed Shear Stress in Shallow Transitional Flows under Condition of Incipient Motion of Sand Particles Using Turbulence Characteristics

Author:
Reza Shahmohammadi; Hossein Afzalimehr; Jueyi Sui
Source:
Water 2022 v.14 no.16 pp. -
ISSN:
2073-4441
Subject:
shear stress,   etc   ; Reynolds number; sand; turbulent flow; water;     Show all 5 Subjects
Abstract:
... In this experimental study, using an ADV, experiments were performed in three different shallow water flows under hydraulically transitional flow condition to estimate the bed shear stress using turbulence characteristics. Vertical distributions of all shear and normal Reynolds stresses as well as TKE were evaluated and simplified in order to estimate bed shear stress under incipient motion of fou ...
DOI:
10.3390/w14162515