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RISAssessment of Failure Modes Caused by Water Hammer and Investigation of Convenient Control Measures
Publisher: ASCE
Abstract: Economic and efficient transient control measures are always required to ensure safe and performant operation of water distribution networks (WDNs). This study presents extensive numerical investigations of some cost-effective ...
Multiscale Nonlinear Framework for the Long-Term Behavior of Layered Composite Structures
Publisher: American Society of Civil Engineers
Abstract: This paper presents an integrated micromechanical–structural framework for local–global nonlinear and time-dependent analysis of fiber reinforced polymer composite materials and structures. The proposed modeling approach ...
Rolling Element Bearing Diagnostics Using Extended Phase Space Topology
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper introduces a novel method called extended phase space topology (EPST) for machinery diagnostics and pattern recognition. In particular, the research focuses on fault detection and diagnostics of rolling element ...
Ultrasonic Monitoring of Material Degradation in FRP Composites
Publisher: American Society of Civil Engineers
Abstract: This research uses laser ultrasonic techniques to monitor a (directly measurable) ultrasonic property—frequency-dependent Rayleigh wave velocity (material dispersion)—and then relates changes in this acoustic property to ...
Three-Dimensional Micromechanics-Based Constitutive Framework for Analysis of Pultruded Composite Structures
Publisher: American Society of Civil Engineers
Abstract: A new 3D micromechanics-based framework is proposed for the nonlinear analysis of pultruded fiber-reinforced polymeric composites. The proposed 3D modeling framework is a nested multiscale approach that explicitly recognizes ...
Time–Cost Optimization Model Considering Float-Consumption Impact
Publisher: American Society of Civil Engineers
Abstract: The main objectives of construction projects are completing the project on time and within budget. Typically, there is a trade-off between time and cost. Time loss is costly and time savings can provide benefits to all the ...
Economic Analyses for Low-Strength Concrete Wrapped with CFRP to Improve the Mechanical Properties and Seismic Parameters
Publisher: ASCE
Abstract: One of the current approaches for retrofitting concrete is fiber-reinforced polymer (FRP) composites wrapping. As far as cost concerns, one of the issues that may raise questions using FRP is the effectiveness of this ...
Formulation of Traffic Inputs Required for the Implementation of the M-E PDG in Data-Scarce Regions: Lebanon Case Study
Publisher: American Society of Civil Engineers
Abstract: The implementation of the Mechanistic-Empirical Pavement Design Guide (M-E PDG) in regions outside the United States and Canada, such as the Middle East and North Africa region (MENA), is still in its early stages due to ...
Comparison of HSPF and PRMS Model Simulated Flows Using Different Temporal and Spatial Scales in the Black Hills, South Dakota
Publisher: American Society of Civil Engineers
Abstract: The hydrological simulation program Fortran (HSPF) [Hydrological Simulation Program Fortran version 12.2 (Computer software). USEPA, Washington, DC] and the precipitation runoff modeling system (PRMS) [Precipitation Runoff ...
Modification of the Acoustic Mismatch Model and Diffuse Mismatch Model for Accurate Prediction of Interface Thermal Conductance at Low Temperatures
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Houston's method for summing phonon modes in the Brillouin zone is applied to exclude specular transmission of phonon modes of specific symmetries, thus, modifying the Acoustic Mismatch Model when phonon heat flux is ...