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An Analytical Solution of Fracture Induced Stress and Its Application in Shale Gas Exploitation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Natural gas and oil exploration and production from shale formations have gained a great momentum in many regions in the past five years. Producing hydrocarbons from shale is challenging because of low productivity of ...
Constitutive Modeling for Transparent Granular Soils
Publisher: American Society of Civil Engineers
Abstract: Transparent granular soil was recently found to be greatly useful for observations of the internal deformation in geotechnical model tests. Therefore, it is necessary to investigate the stress–strain and stress–dilatancy ...
Model Tests on Soil Movement during the Installation of Piles in Transparent Granular Soil
Publisher: American Society of Civil Engineers
Abstract: This paper presents model tests on the displacement characteristics of flat-ended piles, pipe piles, and piles with a cone tip of 45º in a transparent granular soil. The testing setup consisted of transparent granular soil, ...
Residual Vibration Suppression for Duffing Nonlinear Systems With Electromagnetical Actuation Using Nonlinear Command Shaping Techniques
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Residual vibration control is crucial for numerous applications in precision machinery with negligible damping such as magnetically actuated systems. In certain magnetically actuated applications, ...
Numerical Modeling of the Behaviors of Sacrificial Polymers on Reducing Surfactant Loss
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The use of surfactants to alter the reservoir hydrocarbons affinity toward the injection fluids is an effective method to improve oil recovery for depleted reservoirs. However, the actual field applications of this technique ...
New Gradation Equation and Applicability for Particle-Size Distributions of Various Soils
Publisher: American Society of Civil Engineers
Abstract: A new gradation equation that can describe the particle-size distribution curves of soils with continuous gradation is presented. The results obtained for a large amount of test data from soil gradations prove that the ...
Estimation of Robustness of Time Integration Algorithms for Elasto-Viscoplastic Modeling of Soils
Publisher: American Society of Civil Engineers
Abstract: Time integration with stress–strain updating is a key step for the application of elasto-viscoplastic models to engineering practice. Currently, the estimation robustness of algorithms is lacking, which poses difficulties ...