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RISElectrostatic Transport of Lunar Soil for In Situ Resource Utilization
Publisher: American Society of Civil Engineers
Abstract: To realize a long-term lunar exploration, it is essential to develop a technology for transporting lunar soil for in situ resource utilization. We are developing a particle transport system that utilizes electrostatic ...
Experimental Study on Repair Methods of Corroded Bridge Cables
Publisher: American Society of Civil Engineers
Abstract: The cables and hangers of old suspension bridges and the stays of cable-stayed bridges often suffer from steel corrosion. It is important to repair them by proper methods to prevent the further progression of corrosion. ...
Experimental Study on Fatigue Strength of Corroded Bridge Wires
Publisher: American Society of Civil Engineers
Abstract: Fatigue tests were conducted for corroded galvanized steel wires on three corrosion levels, showing that fatigue strength of corroded wires lowers as corrosion progresses. Corrosion pits were measured on the corroded ...
Seismic Response and Train-Running Safety of Two-Story Reinforced Concrete Viaduct with Seismically Repaired Middle Beams
Publisher: American Society of Civil Engineers
Abstract: On March 16, 2022, a magnitude 7.4 earthquake, hereinafter referred to as the 2022 Fukushima EQ, struck off the coast of Fukushima Prefecture. The 2022 Fukushima EQ caused the derailment of a Tohoku Shinkansen bullet train ...
Environmental Factors Affecting Corrosion of Galvanized Steel Wires
Publisher: American Society of Civil Engineers
Abstract: It was found from field surveys that suspension bridge cables were under severe corrosion environments due to the water and high temperature inside the cable. Corrosion environments depended on the wire positions inside ...
An Analytical Approach to Investigate the Evolution of Bone Volume Fraction in Bone Remodeling Simulation at the Tissue and Cell Level
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Simulation of bone remodeling at the bone cell level can predict changes in bone microarchitecture and density due to bone diseases and drug treatment. Their clinical application, however, is limited since bone microarchitecture ...
Material Point Method for Coupled Hydromechanical Problems
Publisher: American Society of Civil Engineers
Abstract: This paper describes a new formulation of the material point method (MPM) for solving coupled hydromechanical problems of fluid-saturated soil subjected to large deformation. A soil–pore fluid coupled MPM algorithm based ...
Development of Aseismic Column with Self-Centering Capacity Only during Restoration
Publisher: American Society of Civil Engineers
Abstract: Self-centering columns (SC), while attracting interest for their high recoverability, do not dissipate seismic energy as efficiently as conventional reinforced concrete or steel columns, potentially leading to a more ...
Evaluation of a Dynamic Transfer Matrix for a Hydraulic Turbine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: It is well known that hydraulic machines experience various types of flow instabilities causing a negative influence on the system under off-design operations. The transfer matrix method correlating the flow properties in ...
Establishment of Prediction Model for Cavitation Surge Frequency and Onset in an Inducer Considering Dynamic Characteristics of Cavitation Compliance and Mass Flow Gain Factor
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An accurate prediction method of cavitation surge is desired to design a reliable turbopump for rocket engines that allow complex operational sequences such as controlled reentry and landing. Therefore, the paper aims to ...