Results 1 to 10 of about 106,911 (302)

Optimized Design of a Triangular Shear Piezoelectric Sensor Using Non-Dominated Sorting Genetic Algorithm-II(NSGA-II) [PDF]

Sensors
A new piezoelectric sensor with a triangular shear structure was designed to conduct the deformation monitoring of geotechnical bodies in mining airspace.
Yannan Shi, Jikun Dai
doaj   +2 more sources

A Modified Resonant Column Device for In-Depth Analysis of Vibration in Cohesive and Cohesionless Soils

Energies, 2021
With the accelerating progression of global climate change, switching to renewable energy sources is inevitable. Wind energy is a fast-growing branch of this industry, and according to the 2021 Global Wind Report, this trend must continue in order to ...
Piotr E. Srokosz, Ireneusz Dyka, Marcin Bujko, Marta Bocheńska   +3 more
doaj   +1 more source

Application of an Artificial Neural Network (ANN) Model to Determine the Value of the Damping Ratio (D) of Clay Soils

Applied Sciences, 2023
The properties and behavior of soils depend on many factors. The interaction of individual factors is difficult to determine by traditional statistical methods due to their interdependence.
Marzena Lendo-Siwicka, Karina Zabłocka, Emil Soból, Anna Markiewicz, Grzegorz Wrzesiński   +4 more
doaj   +1 more source

Macro- and Micromechanical Assessment of the Influence of Non-Plastic Fines and Stress Anisotropy on the Dynamic Shear Modulus of Binary Mixtures

Fractal and Fractional, 2022
Resonant column tests were carried out on Hostun sand mixed with 5%, 10% and 20% non-plastic fines (defined as grains smaller than 0.075 mm) in order to quantify the combined influence of the void ratio (e), anisotropic stress state (defined as σv′/σh ...
Meisam Goudarzy, Debdeep Sarkar
doaj   +1 more source

Modernized Resonant Column and Torsional Shearing Apparatus With Multipoint Contactless Displacement Detection System

Studia Geotechnica et Mechanica, 2023
In this study, a modification of resonant column/torsional shearing (RC/TS) apparatus was proposed to perform a qualitative analysis of a noncohesive soil specimen vibration during RC tests.
Bujko Marcin, Bocheńska Marta, Srokosz Piotr, Dyka Ireneusz   +3 more
doaj   +1 more source

An evaluation of the effect of matric suction on the dynamic strain-dependent parameters of an unsaturated silt [PDF]

E3S Web of Conferences, 2023
This research investigates the influence of matric suction on the variation of shear modulus and damping ratio of a silty soil in very small to medium shear strain levels.
Haeri S. Mohsen, Sadollahzadeh Behnam, Zahed Vahid   +2 more
doaj   +1 more source

Correction of Young’s Modulus Calculation in the Flexural Mode of Resonant Column Test

Applied Sciences, 2020
The resonant column test includes torsional and flexural modes that can be used to obtain reduction curves for the shear modulus and Young’s modulus of the soil, respectively.
Wei-Chun Lin, Chi-Chin Tsai
doaj   +1 more source

The effect of particle size and hydrate status on dynamic mechanical properties of hydrate‐bearing sediments

Energy Science & Engineering, 2022
Dynamic mechanical properties of natural gas hydrate (NGH) reservoirs are extremely important owing to their critical role in drilling safety and reservoir stability during NGH development.
Wei Hu, Fulong Ning, Zhichao Liu, Dongdong Wang, Xiaofeng Dou, Yanlong Li, Gaowei Hu, Changling Liu   +7 more
doaj   +1 more source

Laboratory Characterization of a Compacted–Unsaturated Silty Sand with Special Attention to Dynamic Behavior

Applied Sciences, 2020
The dynamic properties of compacted non-cohesive soils are desired not only because of the risk of natural sources of dynamic excitations such as earthquakes, but mostly because of the anthropogenic impact of machines that are working on such soils ...
Andrzej Głuchowski, Zdzisław Skutnik, Marcin Biliniak, Wojciech Sas, Diego Lo Presti   +4 more
doaj   +1 more source

Shape, Resonant Frequency and Thermoelastic Dissipation Analysis of Free-Formed Microhemispherical Shells Based on Forming Process Modeling

Micromachines, 2022
Free-form microhemispherical shell resonators have the advantages of high quality factor and mass production. The shape of microhemispherical shells created via this process is based on a single mold and is difficult to adjust, which affects the resonant
Yang Gao, Jiachao Zhang, Zhihu Ruan, Lin Meng, Jia Jia   +4 more
doaj   +1 more source