Article
Engineering, Geological
Ali Lashkari, Vahid Jamali
Summary: This study investigated the influence of overall particle shape, mean particle size, initial relative density, and effective normal stress on the soil-geosynthetic interaction through direct shear interface tests. Results showed that higher peak friction angles were mobilized with increases in initial relative density and angularity of sand particles, as well as a decrease in effective normal stress. Additionally, the slip at the interface was found to increase with the initial relative density of sand and regularity of particles, and decrease with increasing mean particle size and effective normal stress.
Article
Materials Science, Multidisciplinary
A. Ingle, S. Heurtault, F. Hafid, J. Said, A. Proietti, G. Odemer, M. Dehmas, C. Blanc
Summary: The study found that an increase in the density of high-angle grain boundaries can decrease the corrosion current of commercially pure Al alloy in chloride-sulphate solution, while intermetallic particles may act as pit initiation sites. In addition, the propagation of pits is strongly influenced by the density of high-angle grain boundaries.
Article
Mechanics
Mohsen Ghasemiy Nezhadhaghighi
Summary: This study uses extensive Monte Carlo simulations to investigate the scaling behavior and conformal properties of a triangular Ising model with three-spin interactions at the critical point, revealing connections to the universality class of domain walls in the four-states Potts model. The research demonstrates various geometrical properties of critical interfaces to characterize the fractal structure and scaling properties of conformal loop ensembles, showing results consistent with the hyper-scaling relation for spin models.
JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT
(2021)
Article
Engineering, Geological
Genaro Gonzalo Carnero-Guzman, Abdelmalek Bouazza, Will P. Gates, R. Kerry Rowe, Rebecca McWatters
Summary: This study investigates the hydration and dehydration behavior of GCL under polar conditions in Antarctica, focusing on summer hydration and winter-summer dehydration cycles. The findings indicate that direct contact with groundwater leads to summer hydration, while low relative humidity environment causes dehydration, depending on the field conditions. Hydration from fine or coarse Antarctic soil is influenced by the original water content and grain size distribution of the subgrade soil, as well as the low relative humidity prevailing in Antarctica.
GEOTEXTILES AND GEOMEMBRANES
(2021)
Article
Materials Science, Multidisciplinary
Alexis Saez, Brice Lecampion, Pathikrit Bhattacharya, Robert C. Viesca
Summary: This study investigates the quasi-static growth of a fluid-driven shear crack on a fault interface, analyzing the rupture shape and area evolution under different injection scenarios and fault characteristics. The results provide insights into the propagation of stable (aseismic) ruptures and their relationship with fluid pressure increase.
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2022)
Article
Physics, Fluids & Plasmas
Mary K. Coe, Robert Evans, Nigel B. Wilding
Summary: In this study, density fluctuations in a liquid near a solvophobic substrate were investigated using classical density functional theory. The results showed that, in the critical drying regime, the local compressibility, local thermal susceptibility, and reduced density exhibited similar behavior, and this can be explained by a scaling treatment of surface thermodynamics.
Article
Biochemistry & Molecular Biology
Sophia A. Rodrigues, Heather M. Shewan, Yuan Xu, Nichola Selway, Jason R. Stokes
Summary: This study investigates the frictional behavior of molten chocolate using soft tribology, revealing its dependence on particle nature and fat content. High solid fraction chocolate shows more transitions, correlated with the influence of particle aggregation on rheology. Additionally, oral lubrication is also affected by fat content.
Article
Computer Science, Interdisciplinary Applications
Seyed Mohamad Mirmoazen, Seyed Hamid Lajevardi, Seyed Mohammad Mirhosseini, Meghdad Payan, Reza Jamshidi Chenari
Summary: In this study, the lateral earth pressure on geosynthetic-reinforced retaining walls with an anisotropic granular backfill under strip footing loadings is evaluated using a combination of limit analysis theory, second order cone programming, and finite element method. It was found that the inherent anisotropy of the soil increases the coefficient of active earth pressure on the retaining structures.
COMPUTERS AND GEOTECHNICS
(2021)
Article
Physics, Multidisciplinary
S. Kundu, V Tripathi
Summary: We investigate the electronic phase competition in a system of three coupled spinless Luttinger liquids, where scaling procedures generate off-diagonal contributions to the phase stiffness matrix and require rescaling and large rotations of the bosonic fields. By considering these rotations, we study competing phases in the system and determine its critical behavior with phase boundaries of the Berezinskii-Kosterlitz-Thouless type. Our findings may aid in understanding phases and transitions in semimetals like bismuth featuring three Fermi pockets at high magnetic fields.
NEW JOURNAL OF PHYSICS
(2021)
Article
Engineering, Multidisciplinary
Yidong Zhao, Jinhyun Choo, Yupeng Jiang, Minchen Li, Chenfanfu Jiang, Kenichi Soga
Summary: We propose a barrier method for treating frictional contact on interfaces embedded in finite elements. The method has attractive features such as not introducing additional degrees of freedom or iterative steps, avoiding inter-penetration, avoiding an ill-conditioned matrix system, and direct control of solution accuracy. The method involves deriving contact pressure from a smooth barrier energy function and using a smoothed friction law. We use the extended finite element method for discretization and devise an integration scheme to provide stable solutions. The method can be tailored to embedded interfaces without parameter tuning and is highly robust and cost-effective for challenging frictional contact problems.
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
(2022)
Article
Engineering, Mechanical
Ilaria Ghezzi, Davide Tonazzi, Michael Rovere, Cedric Le Coeur, Yves Berthier, Francesco Massi
Summary: This study focuses on the impact of the complex rheology of lubricants on the evolution of friction coefficients at extremely low sliding velocities in greased contacts. By conducting tests on a dedicated tribometer, it was found that there is a non-trivial relationship between friction and velocity within the investigated velocity range.
TRIBOLOGY INTERNATIONAL
(2021)
Article
Engineering, Geological
Ana C. G. Pires, Ennio M. Palmeira
Summary: This paper discusses the importance of geosynthetics in protecting buried pipes and minimizing the consequences of pipe burst. Results from large scale laboratory tests show that reinforcements significantly reduce pipe displacements and deflections, with the efficiency of the reinforcement depending on its type and physical and mechanical properties.
GEOTEXTILES AND GEOMEMBRANES
(2021)
Article
Engineering, Geological
J-Y Chang, S-J Feng
Summary: The stability of landfills is closely related to the shear strength of liner systems. This study examines the interface shear behavior of a multilayer geosynthetic liner and reveals the transfer of failure surface and the impact of displacement rates on peak and residual strengths. Testing of three single interfaces in the composite liner allows for a rough estimation of the macro shear strengths of multilayer liners.
GEOSYNTHETICS INTERNATIONAL
(2021)
Article
Engineering, Geological
A. Ensani, H. R. Razeghi, J. Mamaghanian
Summary: This study numerically and analytically analyzed the interface behavior between locally available marginal soils and geosynthetic materials. Through large scale direct shear tests and finite element simulations, the research found a good agreement between experimental data and predicted results.
GEOSYNTHETICS INTERNATIONAL
(2022)
Article
Environmental Sciences
Ishfaq Rashid Sheikh, K. M. N. Saquib Wani, Fazal E. Jalal, Mohammad Yousuf Shah
Summary: The strength and rigidity of the base course are crucial for pavement performance. The use of geosynthetic materials to reinforce quarry waste can improve its load-bearing capacity. Artificial neural network analysis can predict deformation on the pavement.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
