Journal of Engineering Mechanics: Recent submissions
Now showing items 581-600 of 7001
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Machine Learning Approach to Model Order Reduction of Nonlinear Systems via Autoencoder and LSTM Networks
(ASCE, 10/1/2021)In analyzing and assessing the condition of dynamical systems, it is necessary to account for nonlinearity. Recent advances in computation have rendered previously computationally infeasible analyses readily executable on ... -
Fundamental Mode Shape–Based Structural Damage Quantification Using Spectral Element Method
(ASCE, 11/1/2021)Vibration-based damage detection techniques usually focus on the changes in the modal properties as a result of any structural damage. For the last three decades, varying levels of success have been achieved in identifying ... -
Micromechanical Study of Porosity Effects on Coupled Moisture-Mechanical Responses of Viscoelastic Asphalt Concrete
(ASCE, 9/1/2021)The present paper offers a micromechanical modeling approach to evaluate the impact of the porosity structure on the response of asphalt concrete as a viscoelastic multiphase material under the combined action of moisture ... -
Cell-Based Smoothed Finite-Element Framework for Strongly Coupled Non-Newtonian Fluid–Structure Interaction
(ASCE, 10/1/2021)This work presents a cell-based smoothed finite-element method (CS-FEM) for simulating strongly coupled non-Newtonian fluid–structure interactions. The governing equations of a Carreau-Yasuda fluid and an elastic solid are ... -
Active Simulation of Transient Wind Field in a Multiple-Fan Wind Tunnel via Deep Reinforcement Learning
(ASCE, 9/1/2021)The transient wind field during a nonsynoptic wind event (e.g., thunderstorm downburst) presents time-varying mean and nonstationary fluctuating components, and hence is not easy to be reproduced in a conventional ... -
Consolidation Theory of Unsaturated Soils with Vertical Drains Considering Well Resistance and Smear Effect under Time-Dependent Loading
(ASCE, 9/1/2021)In this investigation, an approximate analytical solution to the axisymmetric consolidation problem of unsaturated soils improved with vertical drain is presented under the equal-strain condition. The smear effect of soil, ... -
Vibration Control of Structures by an Upgraded Tuned Liquid Column Damper
(ASCE, 9/1/2021)To improve the effectiveness and the robustness of a tuned liquid column damper (TLCD) in mitigating structural vibrations, an upgraded type of tuned liquid column damper (UTLCD) is proposed in this paper. A UTLCD is ... -
Constructing Quasi-Site-Specific Multivariate Probability Distribution Using Hierarchical Bayesian Model
(ASCE, 10/1/2021)In geotechnical engineering, it is challenging to construct a site-specific multivariate probability distribution model for soil/rock properties because the site-specific data are usually sparse and incomplete. In contrast, ... -
Response Estimation of Multi-Degree-of-Freedom Nonlinear Stochastic Structural Systems through Metamodeling
(ASCE, 11/1/2021)The ever-growing reliance on probabilistic performance-based frameworks in assessing and designing structural systems is creating a need for efficient tools for propagating uncertainty through general nonlinear and dynamic ... -
Interval Analysis of Interior Acoustic Field with Element-By-Element-Based Interval Finite-Element Method
(ASCE, 11/1/2021)This paper presents an element-by-element-based interval finite-element method (EBE-IFEM) for the uncertain interior acoustic field prediction with uncertain-but-bounded parameters. The interval dynamic matrices and loads ... -
Exploration of the Nonlinear Effect of Pendulum Tuned Mass Dampers on Vibration Control
(ASCE, 8/1/2021)Understanding the nonlinearity of pendulum tuned mass dampers (PTMDs) under large-amplitude vibration is important to enhance control performance. Here, the nonlinear effects of PTMDs on vibration control of a single-deg ... -
Plate-Bending Analysis by NURBS-Based Scaled Boundary Finite-Element Method
(ASCE, 9/1/2021)This paper extends the idea of using nonuniform rational B-splines (NURBS) based shape functions in the scaled boundary finite-element method (SBFEM) to plate bending formulations, which inherits the advantages of the ... -
Analytical Solution of Earthquake-Induced Hydrodynamic Pressure on Arrays of Circular Cylinders Considering High-Order Scattered Waves
(ASCE, 9/1/2021)The earthquake-induced pressures on arrays of cylinders have received less concern, although pile groups have been widely adopted in real practice. This paper develops an analytical method to investigate the interaction ... -
Semi-Infinite Hydraulic Fracture Driven by a Sequence of Power-Law Fluids
(ASCE, 10/1/2021)Hydraulic fracturing technology most often involves multiple fluids with different properties to achieve desired treatments. This study examines the effects of multiple sequential fluids on the stress, strain, and deformation ... -
Modeling of Corrosion Pit Growth for Buried Pipeline Considering Spatial and Temporal Variability
(ASCE, 10/1/2021)Corrosion of metal in soils has been intensively investigated in the past. However, a review of the published literature shows that there are challenges for researchers to accurately predict the corrosion growth of buried ... -
Effective Compensation of Nonlinear Actuator Dynamics Using a Proposed Linear Time-Varying Compensation
(ASCE, 9/1/2021)Actuator tracking and compensation are important in the general field of experimental structural dynamics to effectively conduct vibration testing. Real-time hybrid substructuring (RTHS) is a method of vibration testing ... -
Shape-Based Strategy for Inverse Estimation of Soft Tissue Mechanical Material Properties from Untagged Medical Imaging Data
(ASCE, 8/1/2021)A computational approach is presented to estimate the in vivo magnitude and spatial distribution of mechanical material properties of soft tissues. This strategy utilizes an optimization-type inverse problem solution ... -
Numerical Modeling of the Injection of Nanoparticles in Saturated Cementitious Material by Electromigration
(ASCE, 9/1/2021)This paper presents numerical modeling of nanoparticles injected into cementitious material using the electromigration method. In order to remediate leaking wells in CO2 storage formations, beneficial nanoparticles can be ... -
Solution to Vibrations of Double-Beam Systems under General Boundary Conditions
(ASCE, 10/1/2021)The problem of vibrations of double-beam systems is of technological interest and has been extensively studied in the literature. However, a general solution is yet to be developed for the general boundary conditions. In ... -
Lifetime Resilience Measurement of River-Crossing Bridges with Scour Countermeasures under Multiple Hazards
(ASCE, 9/1/2021)River-crossing bridges are often subject to multiple hazards, including foundation scour, seismic attacks, and environmental degradation. When river-crossing bridges are in service, they should be restored rapidly after ...