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Identification and Damage Detection of Trusses Using Modal Data
Publisher: American Society of Civil Engineers
Abstract: A method for identifying the element properties of a truss is developed in this paper. The measured natural frequencies and modal shapes of the truss are used in the identification process. The finite-element method is ...
Groundwater Nitrate Contamination Risk Induced by Irrigation from Polluted River Water
Publisher: American Society of Civil Engineers
Abstract: Groundwater contamination experiments using irrigation water from the polluted Kuihe River were conducted at the Hanwang hydrological field station, near Xuzhou City. As part of this study, a numerical model was developed ...
Parametric Identification of Truss Structures Using Static Strains
Publisher: American Society of Civil Engineers
Abstract: A method for identifying the element properties of a truss is developed in this paper. The axial strains of the truss elements measured in static tests are used in the identification process. The finite-element method is ...
Structural Reliability under Incomplete Probability Information
Publisher: American Society of Civil Engineers
Abstract: A comprehensive framework is set forth for the analysis of structural reliability under incomplete probability information. Under stipulated requirements of consistency, invariance, operability, and simplicity, a method ...
Finite Element Reliability of Geometrically Nonlinear Uncertain Structures
Publisher: American Society of Civil Engineers
Abstract: A general framework for finite element reliability analysis based on the first‐ and second‐order reliability methods, FORM and SORM, is presented. New expressions for the required gradients of the response of geometrically ...
Selection of Random Field Mesh in Finite Element Reliability Analysis
Publisher: American Society of Civil Engineers
Abstract: Random fields are often used in reliability analysis to model the uncertainties that possess spatial variabilities. Within the framework of finite element reliability methods, the domain of each field is discretized into ...
Application of System Identification to the Absolute Calibration of Acoustic Emission Signals
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper studies the absolute calibration of acoustic emission signals. The experiments were conducted on a thin plate. Fracture of a glass capillary was adopted to generate a vertical force ...
Experiments on Flood-Wave Propagation in Compound Channel
Publisher: American Society of Civil Engineers
Abstract: Data related to floodplain inundation by fast-rising floods are limited and needed. Eighteen data sets are provided from experiments conducted in a symmetrical compound channel that has a trapezoidal main channel. Three ...
Estimating Raindrop Size Distributions and Vertical Air Motions with Spectral Difference Using Vertically Pointing Radar
Publisher: American Meteorological Society