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Study of the Moisture Equilibrium of Highway Expansive Soil Embankments
Publisher: American Society of Civil Engineers
Abstract: To investigate the moisture equilibrium of expansive soil embankments, a series of stress-dependent soil-water characteristic curve (SWCC) tests, one-year field monitoring on a trial covered expansive soil embankment, and ...
Phenomenological Hysteretic Model for Steel Braces Including Inelastic Postbuckling and Low-Cycle Fatigue Prediction
Publisher: American Society of Civil Engineers
Abstract: This study presents a simple yet efficient phenomenological hysteretic model for hollow circular steel (HCS) braces without a middle connection in concentrically braced frames (CBFs). The model is calibrated on the basis ...
Study on Design and Simulation of On-ramp Fuzzy Controller for Urban Freeway
Publisher: American Society of Civil Engineers
Abstract: On-ramp control is one of the most effective measures to combat traffic congestion of urban freeway. The characteristics of traffic flow and the model of on-ramp control are analyzed, and a fuzzy control measure is put ...
A Thermovisco Hyperelastic Constitutive Model of NEPE Propellant Over a Large Range of Strain Rates
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The uniaxial compressive mechanical curves of nitrate ester plasticized polyether (NEPE) propellant under different temperatures and strain rates have been obtained with a universal testing machine and modified split ...
Numerical Method for Predicting Chloride Diffusivity of Mature Cement Paste
Publisher: American Society of Civil Engineers
Abstract: This paper develops a highly efficient numerical method for estimating the chloride diffusivity of mature cement paste. In the method, the two-dimensional microstructure of cement paste is reconstructed through computer ...
Fatigue Properties of Asphalt Mixtures at Broad Stress Ratio Conditions with Improved S−N Model
Publisher: American Society of Civil Engineers
Abstract: The applicability of the Sigmoidal Function to describe the fatigue law of asphalt mixtures at broad stress ratio conditions was examined. This application aimed to avoid the inaccessibility of the segment function. It ...
Impact of South Pacific Subtropical Dipole Mode on the Equatorial Pacific
Publisher: American Meteorological Society
Abstract: AbstractPrevious studies have indicated that a sea surface temperature anomaly (SSTA) dipole in the subtropical South Pacific (SPSD), which peaks in austral summer (January?March), is dominated by thermodynamic processes. ...
Decadal Variability of the Indian and Pacific Walker Cells since the 1960s: Do They Covary on Decadal Time Scales?
Publisher: American Meteorological Society
Abstract: AbstractPrevious studies have investigated the centennial and multidecadal trends of the Pacific and Indian Ocean Walker cells (WCs) during the past century, but have obtained no consensus owing to data uncertainties and ...
Experiment of Tension-compression Fatigue and Damage for Asphalt Mixtures
Publisher: American Society of Civil Engineers
Abstract: A tension-compression beam fatigue test under continuous sine wave alternating loading for AC-13 was conducted to understand fatigue damage characteristics of an actual asphalt pavement structure under tension and compression ...
A Novel Multimaterial Additive Manufacturing Technique for Fabricating Laminated Polymer Nanocomposite Structures
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The objective of this research is to develop a novel, multimaterial additive manufacturing technique for fabricating laminated polymer nanocomposite structures that have characteristic lengthscales in the tens of millimeters ...