Journal of Engineering Mechanics: Recent submissions
Now showing items 681-700 of 7001
-
Linear Algebraic Method of Solution for the Problem of Mitigation of Wave Energy Near Seashore by Trench-Type Bottom Topography
(ASCE, 11/1/2020 )The problem involving mitigation of wave energy by trench-type structure, in particular, a pair of trenches imposed on the seabed in the absence and presence of a vertical wall, is examined for its solution. The problem ... -
Dynamic Physical Model for MR Damper Considering Chain Deflection in Preyield Stage
(ASCE, 11/1/2020 )A novel dynamic physical model for a magnetorheological (MR) damper is proposed. In this model, the hysteretic properties are considered to result from the difference between the working mechanism of MR fluids in their ... -
3D Dynamic Elastoplastic Constitutive Model of Concrete within the Framework of Rate-Dependent Consistency Condition
(ASCE, 11/1/2020 )In this paper, the proposed yield function is the function of stress, hardening parameter, and strain rate. To fully describe the stress state and strain rate condition of material during dynamic loading, a new coordinate ... -
Output-Only Modal Parameter Identification of Systems Subjected to Various Types of Excitation
(ASCE, 11/1/2020 )This study presents a novel modal parameter identification method enabling approximation of the mode shapes of linear systems using white-noise or earthquake inputs. The majority of well-established existing system ... -
Experimental and Numerical Study on Dynamic Behavior of Eddy Current Damping with Frequency Dependence
(ASCE, 10/1/2020 )This study investigates the dynamic and nonlinear behavior of an eddy current (EC) damping mechanism by using shaking table tests and finite-element modeling. A noncontact and friction-free EC damper is firstly designed ... -
A Multifield Model for Early-Age Massive Concrete Structures: Hydration, Damage, and Creep
(ASCE, 10/1/2020 )A multifield model of the early-age behavior of massive concrete structures is presented. The hydration process and the thermal evolution are both described through a coupled chemo-thermal model that predicts the degree ... -
Fracture and Size Effect Suppression by Mesh Reinforcement of Concrete and Justification of Empirical Shrinkage and Temperature Reinforcement in Design Codes
(ASCE, 10/1/2020 )A minimum mesh reinforcement, called the shrinkage and temperature reinforcement, has been required by ACI design code for 92 years to attain ductility with no formation of large localized cracks. The required steel ratio, ... -
Multiple Crack Propagation and Coalescence in Finite Elements with Minimal Local Remeshing Using the Subregion Generalized Variational Principle
(ASCE, 10/1/2020 )Multiple crack propagation and coalescence in two-dimensional linear elastic media were modeled using the finite-element method (FEM) in conjunction with the subregion generalized variational principle. The proposed approach ... -
Induced Vibration of a Surface Foundation atop a Fluid-Conveying Embedded Pipe
(ASCE, 10/1/2020 )The dynamical behavior of a system containing a surface foundation atop a fluid-conveying pipe that is embedded in soil beneath the foundation is investigated. A Winkler–Voigt model is presented to simulate the interaction ... -
Modal Identification of High-Speed Railway Bridges through Free-Vibration Detection
(ASCE, 9/1/2020 1)In the dynamic characteristic analysis of high-speed railway bridges, free-vibration responses after a train passes are valuable for modal identification. However, distinguishing between free- and forced-vibration segments ... -
CFD-Based Framework for Analysis of Soil–Pipeline Interaction in Reconsolidating Liquefied Sand
(ASCE, 10/1/2020 )Submarine buried pipelines interact with shallow soil layers that are often loose and prone to fluidization/liquefaction. Such occurrence is a possible consequence of pore pressure build-up induced by hydrodynamic loading, ... -
Cluster Analysis of Near-Fault Ground Motions Based on the Intensity of Velocity Pulses
(ASCE, 10/1/2020 )In this paper, it is aimed to perform clustering analysis on a large set of near-fault ground motions based on the intensity of velocity pulses. For this purpose, the velocity pulses of these ground motions are extracted ... -
Damage-Plastic Constitutive Model of Thin-Walled Circular Steel Tubes for Space Structures
(ASCE, 12/1/2020 )In this paper, we establish a coupled damage-plastic constitutive model in the scheme of small deformation assumption, based on a continuum damage mechanics model proposed by Lemaitre, for the thin-walled circular steel ... -
Numerical Modeling of Delayed Progressive Collapse of Reinforced Concrete Structures
(ASCE, 10/1/2020 )There has been ever-increasing interest over the past decade in improving understanding of the mechanisms responsible for the progressive collapse of structures. Existing design recommendations and analyses are largely ... -
Dynamic Response Analysis of Composite Pipes Conveying Fluid in the Presence of Internal Wall Thinning
(ASCE, 10/1/2020 )Pipes conveying fluids are primary components in almost all industries. Internal surface attack is inevitable in pipes and can be crucial to their structural integrity and dynamic response characteristics. In this study, ... -
Analytical Study of Employing Low-Strain Lateral Pile Integrity Test on a Defective Extended Pile Shaft
(ASCE, 9/1/2020 1)The lateral pile integrity test (LPIT) method, a low-strain nondestructive test technique, is employed in this paper to evaluate the integrity of an extended pile shaft supporting superstructure. An extended pile shaft ... -
Permeability Measurement of Granular Porous Materials by a Modified Falling-Head Method
(ASCE, 9/1/2020 1)Liquid flows through granular material are common phenomena in different engineering fields. Under certain conditions, this type of flow can be described by Darcy’s law, which involves the permeability of the porous medium. ... -
Consistency in Solving the Inverse Problem of the Voce-Chaboche Constitutive Model for Plastic Straining
(ASCE, 9/1/2020 1)This paper focuses on an inverse problem involving a commonly used material model in structural steel applications—the Voce-Chaboche model. In particular, the paper proposes an approach focused on obtaining a consistent ... -
Behaviors and Modeling of New Self-Centering RC Wall with Improved Disc Spring Devices
(ASCE, 9/1/2020 1)Cyclic loading tests were conducted on self-centering reinforced concrete (RC) walls with disc spring devices (SC-RCW-DSD), and results confirmed that these walls had sufficient energy dissipation and satisfactory ... -
Bayesian Updating Model for Structural Vibration–Induced Hydrodynamic Added Mass of Rectangular Pile Cap Submerged in Water
(ASCE, 9/1/2020 1)This paper focuses on the calculation of the structural vibration–induced hydrodynamic added mass of the rectangular pile cap submerged in water. A total of 150 pile caps with different physical parameters are sampled by ...