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RISThermal-Stress-Aperture Coupled Model for Analyzing the Thermal Failure of Fractured Rock Mass
Publisher: ASCE
Abstract: When rock is subjected to thermal load, primary fractures in the rock will block the heat conduction and greatly affect the temperature distribution, which in turn modifies the distribution of thermal stress and, hence, ...
Carbon Capture for Automobiles Using Internal Combustion Rankine Cycle Engines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Internal combustion Rankine cycle (ICRC) power plants use oxy-fuel firing with recycled water in place of nitrogen to control combustion temperatures. High efficiency and specific power output ...
Criterion for Preventing Self-Loosening of Preloaded Cap Screws Under Transverse Cyclic Excitation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, a novel criterion is developed for preventing the self-loosening of preloaded threaded cap screws under cyclic transverse loading. For a known cyclic excitation, the system ...
Pullout Performance of Self-Tapping Medical Screws
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This study investigates the effect of the pilot hole size, implant depth, synthetic bone density, and screw size on the pullout strength of the self-tapping screw using analytical, finite ...
Achieving Uniform Clamp Load in Gasketed Bolted Joints Using a Nonlinear Finite Element Model
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A three-dimensional nonlinear finite element model is developed for achieving a uniform clamp load in gasketed bolted joints. The model is used for both multiple and single pass tightening ...
Evaluating Damage and Microcracking Behavior of Granite Using NMR Testing under Different Levels of Unconfined Compression
Publisher: American Society of Civil Engineers
Abstract: This work discusses the results from tests performed to investigate the damage and microcracking behaviors of granites. The samples, previously loaded to varying predefined stress levels and then unloaded to zero, were ...
Numerical Analysis of Degradation Characteristics for Heterogeneous Rock under Coupled Thermomechanical Conditions
Publisher: American Society of Civil Engineers
Abstract: The effects of high temperature on rock strength and deformation, and hence the integrity of rock structure, have been a significant issue for rock mechanics and engineering. This article adopts a coupled thermomechanical ...
Effects of Microfracture on Wave Propagation through Rock Mass
Publisher: American Society of Civil Engineers
Abstract: This paper presents an investigation of wave propagation through microfractured rock mass. The effects of microfracture on wave propagation were observed by a series of scanning electron microscope (SEM) tests and wave-velocity ...
Numerical Investigation on the Grouting Penetration Process of Quick-Setting Grout in Discrete Fractured Rock Mass Based on the Combined Finite–Discrete-Element Method
Publisher: ASCE
Abstract: In this study, a combined finite–discrete-element method (FDEM)-based grouting simulator, in which the effect of time-dependent rheological characteristic caused by grout hydration on grouting penetration is adequately ...
Nonlinear Behavior of Preloaded Bolted Joints Under a Cyclic Separating Load
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The nonlinear plastic deformation behavior of a clamped bolted joint model under a separating service load is investigated using analytical, finite element, and experimental techniques. An ...