Journal of Engineering Mechanics: Recent submissions
Now showing items 281-300 of 7001
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Novel Hermite Polynomial Model Based on Probability-Weighted Moments for Simulating Non-Gaussian Stochastic Processes
(ASCE, 2024/04/01)The Hermite polynomial model based on the first-four central moments of non-Gaussian distribution is widely applied to simulate non-Gaussian stochastic processes due to its simplicity and efficiency. Although a variety of ... -
Study on the Mechanism of Tunnel Subhorizontal Jet Grouting Reinforcement Based on a Shell Model on Two-Parameter Foundation
(ASCE, 2024/04/01)Horizontal jet grouting columns (HJGCs) are commonly adopted to reinforce weak ground ahead of the tunnel excavation face. However, the dynamic mechanical response of the HJGCs during tunneling remains unclear. To provide ... -
Method of Fundamental Solutions without Fictitious Boundary in Elastodynamic Behavior Using Dual Reciprocity Method
(ASCE, 2024/02/01)In this paper, a meshless method for analyzing the elastodynamic behavior of two-dimensional problems is introduced. The nonsingular method of fundamental solutions (NMFS) is combined with the method of particular solutions. ... -
Theoretical Design and Dynamic Analysis of a Quasi-Zero Stiffness Device Using Precompressed Springs as Negative Stiffness Component
(ASCE, 2024/02/01)Based on the principle of parallel connection of positive and negative stiffness structures, a new quasizero stiffness (QZS) isolation device is proposed in which the negative stiffness structure is designed by a nonlinear ... -
Nonlinear Dynamics of Flexible Posttensioned Rocking Walls
(ASCE, 2024/05/01)Posttensioned rocking systems have gained attention, as they limit damage to the primary structure and simplify repairs after extreme events. The literature on posttensioned rocking walls is extensive; however, much of it ... -
Nanomechanics of ASR Gels from Coarse-Grained Simulations
(ASCE, 2024/03/01)Despite alkali–silica reaction (ASR) being a major durability problem in concrete, structural features and properties of ASR gels remain poorly understood. Inspired by the success of coarse-grained (CG) simulations in ... -
A Model of Thermo-Microstretch Rotating Poroelastic Medium Immersed in an Infinite Inviscid Fluid with Memory-Dependent Derivative
(ASCE, 2023/12/01)In this study, the porous thermoelastic behavior in a half-space microstretch elastic media enveloped in an unbounded inviscid liquid with rotation using memory-dependent derivative, utilizing Green–Naghdi theory mode III ... -
Probabilistic Analysis of Dynamic Shakedown of Pavement due to Vehicular Loads and Earthquakes
(ASCE, 2023/12/01)The uncertainties related to the inherent properties of pavement subgrade subjected to the dynamic effect of vehicular and earthquake loading were studied extensively using probabilistic analysis. The dynamic effect of the ... -
A Dynamic Elastoplastic Model of Concrete Based on a Modeling Method with Environmental Factors as Constitutive Variables
(ASCE, 2023/12/01)This paper develops a modeling method with an incremental stress–strain–environment constitutive model to predict the change in the plastic mechanical behavior of concrete caused by environmental action. The model regards ... -
Time–Frequency Buffeting Responses of Transmission Lines Excited by Two-Dimensional Turbulent Wind: Closed-Form Solution
(ASCE, 2023/12/01)Currently, the buffeting analysis for transmission lines (TLs) only involves the excitation of horizontal turbulence, while numerous investigations have proven that significant vertical turbulence exists in many wind fields. ... -
A Mixed Variational Framework for Eigenstrain and Residual Stress Reconstruction
(ASCE, 2023/11/01)This paper proposes an inverse eigenstrain analysis procedure to estimate full-field residual stress from an incompletely measured residual elastic strain or stress field. The inverse problem is solved by minimizing the ... -
General Multifidelity Surrogate Models: Framework and Active-Learning Strategies for Efficient Rare Event Simulation
(ASCE, 2023/12/01)Estimating the probability of failure for complex real-world systems using high-fidelity computational models is often prohibitively expensive, especially when the probability is small. Exploiting low-fidelity models can ... -
Generalized Discrete Estimating Method for Moving Force Identification on a Simply Supported Beam Bridge
(ASCE, 2023/12/01)Moving forces are one of the major loads acting on bridge decks, and moving force identification (MFI) is essential for bridge safety. However, there are two shortcomings in existing MFI methods. First, time discrete ... -
Interface Homogenization Approach for Mechanical Healing Driven by Pressure Solution
(ASCE, 2023/10/01)Pressure solution involves mass transfer by dissolution, diffusion, and precipitation in pores or at grain interfaces, which may result in mechanical healing. Dislocation glide is another deformation mechanism that plays ... -
Novel Quadrature-Element Analysis of Plane Stress Elastoplasticity
(ASCE, 2023/08/01)A novel quadrature element for performing plane stress elastoplastic analysis is introduced in this paper. Differing from the popular finite-element method, the quadrature-element method (QEM) first evaluates the integration ... -
Embedding Prior Knowledge into Data-Driven Structural Performance Prediction to Extrapolate from Training Domains
(ASCE, 2023/12/01)Machine learning (ML)–based data-driven approaches have become increasingly prevalent for predicting structural performance. Because a properly trained ML model can learn hidden patterns in databases of experimental samples, ... -
Data-Driven Modeling of Parameterized Nonlinear Dynamical Systems with a Dynamics-Embedded Conditional Generative Adversarial Network
(ASCE, 2023/11/01)Nonlinear dynamical systems in applications such as design and control generally depend on a set of variable parameters that represent system geometry, boundary conditions, material properties, etc. Modeling of such ... -
Discrete Structural Systems Modeling: Benchmarking of LS-DEM and LMGC90 with Seismic Experiments
(ASCE, 2023/12/01)Various papers have presented different methods for computations of mechanics and kinematics of discrete structural systems. However, little has been done in comparing and benchmarking the seismic response from two different ... -
Numerical Modeling of Nanoparticle Injection and Ionic Removal for Cementitious Materials
(ASCE, 2023/12/01)Recently, nanoparticle injection technology has been developed for the remediating and repairing cracks in wellbore systems that can be used for underground CO2 storage. The repair technology can seal the cracks and prevent ... -
High-Cycle Computational Model for Accumulative Deformation of Granular Material under Repeated Traffic Loading
(ASCE, 8/12/2023 )The ballast, essentially unbound granular material, contributes more than 50% to the total settlement of the ballasted railway track, greatly affecting the safety and comfort of train operation. To reduce the deformation-related ...