Article
Energy & Fuels
Mohammad Ahmad Mahmoudi Zamani, Dariusz Knez
Summary: A new safety factor index (SFI) was developed to quantify the impact of mechanical stresses and hydrodynamic forces on sanding in a sandstone reservoir. Results showed that hydrodynamic forces may have a more significant effect on sand production than mechanical stresses, and the SFI can be used to optimize wellbore and perforation configurations to decrease the potential for sanding in sandstone formations.
Article
Engineering, Environmental
Gianmarco Vallero, Monica Barbero, Fabrizio Barpi, Mauro Borri-Brunetto, Valerio De Biagi, Yoichi Ito, Satoru Yamaguchi
Summary: Within the field of snow mechanics, the shear strength of snow plays a key role in understanding the progressive shear failure of snow interfaces. However, research on the shear behavior at the contact between a snow layer and a solid stiff material is limited. Experimental direct shear tests under different conditions provide valuable insights into the shear strength of snow-mortar interfaces.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2022)
Article
Environmental Sciences
Yuan Li, Mingli Wei, Wei Wei, Wenwei Zhang, Lei Liu
Summary: This study investigates the role of oxidation-reduction potential (ORP) and pH in hydrocarbon-contaminated soils on shear characteristics. The results suggest that the concentration of hydrocarbons in contaminated soils can be linearly correlated with ORP/pH values, indicating the potential of ORP/pH as indicators for pollutant occurrence. The relationship between ORP/pH and shear strength shows a strong correlation, and a modified Mohr-Coulomb criterion using ORP/pH parameter improves the fitting effect of these relationships, verifying the reliability and feasibility of ORP/pH in assessing the shear strength of contaminated soil.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Computer Science, Interdisciplinary Applications
L. Gao, N. Guo, Z. X. Yang, R. J. Jardine
Summary: The material point method (MPM) is used to simulate displacement pile installation in sand in this study. A modified contact algorithm is proposed and applied to analyze the installation of a closed-ended pile. The results show that the modified algorithm produces more accurate and stable contact results and agrees quantitatively with published experiments.
COMPUTERS AND GEOTECHNICS
(2022)
Article
Engineering, Ocean
L. Cheng, Y. R. Han, Y. Q. Wu, Y. H. Kim
Summary: This study examines the behavior of strip plate anchors with different inclinations in loose to dense sand using a two-dimensional finite element method. A new equation is proposed to estimate the ultimate pullout capacity of different inclined strip plate anchors in different relative densities of sand, providing guidance for the engineering design of inclined strip plate anchors in sand.
APPLIED OCEAN RESEARCH
(2023)
Article
Engineering, Ocean
L. Cheng, M. S. Hossain, Y. Hu, Y. H. Kim, S. N. Ullah
Summary: This paper investigates the behavior of caisson anchors in sand of different densities and finds that failure is mainly influenced by sand relative density, mooring angle, and padeye position. Through parametric study, an optimal range of padeye position is identified to minimize the rotation angle of the caisson at failure.
APPLIED OCEAN RESEARCH
(2021)
Article
Thermodynamics
Huie Chen, Hua Du, Bin Shi, Wenchong Shan, Jiaqi Hou
Summary: This study investigated the changes in mechanical properties of hydrate bearing clayey sand reservoirs during the mining process and elucidated the microscopic mechanism. The experimental results demonstrated that the shear strengths of the samples decreased as the hydrate decomposed, and the effective cohesion was positively correlated with hydrate saturation degree. An expression for the linear growth of shear strength with effective confining pressure and hydrate saturation degree was established. Furthermore, the microstructures of the samples indicated that the hydrate and soil particles bore the external load together during the shear test, maintaining the pore morphology and enhancing the shear strength.
Article
Engineering, Multidisciplinary
Simon P. A. Gill
Summary: Damage models have been widely used in tensile failure simulations, but extending them to shear failure in compression presents challenges. Issues such as material stiffness retention between crack faces, stress perturbations caused by shear discontinuity, and the selection of failure planes need to be addressed.
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
(2021)
Review
Environmental Sciences
Haotian Liu, Linsen Zhan, Hailong Lu
Summary: The mechanisms for methane migration in marine sediments, including diffusion and advection processes, have not been well reviewed yet. The presence of natural gas hydrate affects methane migration by reducing permeability, enhancing geomechanical strength, and constructing hydrate channels. Dissolved methane faces high consumption rates, while free methane gas is hindered by capillary force. Methane discharge along fractures or failure surfaces is considerable, and gas flow through hydrate channels is difficult to constrain.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Engineering, Civil
Nasrin Vafaei, Kazem Fakharian, Abouzar Sadrekarimi
Summary: Sand-steel interface behavior differs from sand-sand interface behavior, with sand density having a significant effect on interface shear behavior. Sand-steel interfaces are less dilative and exhibit smaller critical shearing displacements compared to sand-sand interfaces, with sliding displacement prevailing at higher sand densities. Interface friction angle is influenced by inter-particle shear resistance, particle crushing, and particle rearrangement/rotation mechanisms.
TRANSPORTATION GEOTECHNICS
(2021)
Article
Engineering, Ocean
Ajay Kumar, Vishwas N. Khatri, Sunil K. Gupta
Summary: In this study, the uplift capacity of under-reamed piles in sand was determined using finite element analysis. An analytical equation was developed to predict the uplift capacity of these piles, which was validated using a large dataset from literature with a high degree of correlation. The proposed equation proved to be effective in predicting the uplift capacity of under-reamed/belled piles.
MARINE GEORESOURCES & GEOTECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
A. Amine Benzerga
Summary: This paper discusses the plasticity of porous materials from a fundamental standpoint. It focuses on the concept of unhomogeneous yielding, which involves the yielding and plastic flow under gradient-free macroscopically nonuniform deformation. The nonuniformity is represented by strain localization in one or more bands of finite thickness. The paper presents a general theory for the finite number of bands or yield systems, with a dependence on the resolved normal stress.
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2023)
Article
Construction & Building Technology
Huihua Hu, Xing Zhang, Jianxin Qin, Hang Lin
Summary: This study investigates the influence of morphological characteristics on the shear mechanical properties of sawtooth joints through direct shear tests. The results show that the peak shear displacement of joints varies with increasing normal stress, and the shear strength of joints is positively correlated with normal stress. The study also establishes an empirical equation for the shear strength of joints considering the sawtooth angle. Furthermore, two modes of shear failure for serrated joints are identified. This research provides a theoretical reference for the prediction and prevention of geological disasters.
Article
Geology
Michael A. Etheridge, Nathan R. Daczko, Timothy Chapman, Catherine A. Stuart
Summary: Progressive vapour-absent partial melting of a closed rock system increases melt pressure and leads to brittle failure, affecting permeability in the system. As melt migrates, the system may transition to an open system, limiting melt accumulation in the source.
JOURNAL OF METAMORPHIC GEOLOGY
(2021)
Article
Engineering, Geological
Pragyan Paramita Das, Vishwas N. Khatri, Rakesh Kumar Dutta
Summary: The study dealt with the ultimate bearing capacity of ring footing on loose sand overlying dense sand, using finite element limit analysis and second-order conic programming. The results showed that the bearing capacity ratio decreases with an increase in the thickness and friction angle of the dense sand layer, and the results compared well with existing literature data.
GEOMECHANICS AND GEOENGINEERING-AN INTERNATIONAL JOURNAL
(2021)
Article
Engineering, Geological
Kenton Pike, Shawn Kenny
CANADIAN GEOTECHNICAL JOURNAL
(2016)
Article
Engineering, Geological
Kshama Roy, Bipul Hawlader, Shawn Kenny, Ian Moore
CANADIAN GEOTECHNICAL JOURNAL
(2016)
Article
Engineering, Ocean
Alireza Ebrahimi, Shawn Kenny, Amgad Hussein
JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING-TRANSACTIONS OF THE ASME
(2016)
Article
Engineering, Ocean
Ali Fatemi, Shawn Kenny
JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING-TRANSACTIONS OF THE ASME
(2017)
Article
Engineering, Geological
Kshama Roy, Bipul Hawlader, Shawn Kenny, Ian Moore
CANADIAN GEOTECHNICAL JOURNAL
(2018)
Article
Engineering, Ocean
Alireza Ebrahimi, Shawn Kenny, Amgad Hussein
JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING-TRANSACTIONS OF THE ASME
(2018)
Article
Engineering, Geological
Kshama Roy, Bipul Hawlader, Shawn Kenny, Ian Moore
JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING
(2018)
Article
Environmental Sciences
Peter Oliver, Claire Samson, Shawn Kenny
JOURNAL OF APPLIED REMOTE SENSING
(2019)
Article
Engineering, Civil
Elham Nakhostin, Shawn Kenny, Siva Sivathayalan
Summary: The study assessed the mechanical response of buried metal culverts under different service load conditions using finite element methods, finding that the culvert section profile is a significant parameter in predicting culvert response under shallow burial conditions. Models with a corrugated culvert profile provided more accurate estimates of thrust.
CANADIAN JOURNAL OF CIVIL ENGINEERING
(2021)
Article
Engineering, Ocean
Alireza Ebrahimi, Shawn Kenny, Mohsen Mohammadi
Summary: This study investigates the mechanical performance of hybrid welded joints connecting additively manufactured components with forged or cast parts. A thermo-mechanical FE modeling procedure was developed to predict residual stress on the joints, validated with experimental data. The proposed concept of hybrid joints aims to meet design criteria while facilitating the use of AM techniques.
JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING-TRANSACTIONS OF THE ASME
(2021)
Article
Engineering, Civil
E. Nakhostin, S. Kenny, S. Sivathayalan
Summary: The mechanical response of a buried corrugated steel culvert, deteriorated due to corrosion and/or soil erosion, was simulated using finite element methods. The study found that soil erosion voids located at or above the springline had a greater impact on the culvert's mechanical response, with higher potential for failure and reduced service life. Soil erosion voids below the springline had a localized impact, while combined with corrosion deterioration, the culvert material could approach yield.
ENGINEERING STRUCTURES
(2022)
Article
Psychology, Multidisciplinary
Chelsie J. Smith, Kathryne E. Dupre, Amanda McEvoy, Shawn Kenny
Summary: The study found that individuals' attachment to and perception of their community's resilience are related to the perceived norms of pro-environmental behavior, which in turn affect individuals' perception of climate change risk and willingness to engage in environmental actions. The influence of the community on individuals is serially mediated through behavioral norms and risk perception.
CANADIAN JOURNAL OF BEHAVIOURAL SCIENCE-REVUE CANADIENNE DES SCIENCES DU COMPORTEMENT
(2021)
Proceedings Paper
Engineering, Marine
Kshama Roy, Bipul Hawlader, Shawn Kenny, Ian Moore
PROCEEDINGS OF THE ASME 34TH INTERNATIONAL CONFERENCE ON OCEAN, OFFSHORE AND ARCTIC ENGINEERING, 2015, VOL 1
(2015)
Proceedings Paper
Engineering, Ocean
Kshama Roy, Bipul Hawlader, Shawn Kenny
33RD INTERNATIONAL CONFERENCE ON OCEAN, OFFSHORE AND ARCTIC ENGINEERING, 2014, VOL 6B: PIPELINE AND RISER TECHNOLOGY
(2014)
