Journal of Engineering Mechanics: Recent submissions
Now showing items 701-720 of 7001
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Energy-Based Kinetics Approach for Coupled Viscoplasticity and Viscofracture of Asphalt Mixtures
(ASCE, 9/1/2020 1)Permanent deformation and cracking of asphalt mixtures are common distresses of pavement structures. These two damage processes are usually coupled and occur simultaneously. The evolution speed of each process across the ... -
Stability Analysis of Real-Time Hybrid Simulation with Time-Varying Delay through a Delay Decomposition Approach
(ASCE, 10/1/2020 )Stability of real-time hybrid simulation (RTHS) has attracted considerable attention given that actuator delay might destabilize the real-time test, especially when the compensation is not sufficient. Previous research by ... -
Gradient Chain Structure Model for Characterizing Frequency Dependence of Viscoelastic Materials
(ASCE, 9/1/2020 1)The frequency dependence modeling of viscoelastic (VE) materials faces the challenge of high modeling accuracy over a wide frequency range and double-objective optimization in model parameter identification. To address ... -
A Three-Node Triangular Finite Element for Static Limit Analysis
(ASCE, 9/1/2020 1)A three-node triangular finite element is developed for the static theorem of limit analysis to discretize plane strain and stress problems. The element does not provide rigorous lower-bound solutions because the equilibrium ... -
Study on Two-Dimensional Water Flow over and through Anisotropic Soil
(ASCE, 9/1/2020 1)The two-dimensional (2D) hydraulic analysis of water flow down a slope is crucial. Contrary to past studies, not only the anisotropy of soil but also the vertical component of flow velocity are considered in this study. ... -
Analytical Solutions for Seismic Fluid-Structure Interaction of Head-Supported Cylindrical Tanks
(ASCE, 10/1/2020 )Fluid-structure interaction (FSI) of earthquake shaking is a design consideration in the civil, nuclear, chemical, and mechanical industries. Preliminary sizing of structures and components in these industries will often ... -
Performance of a Nonlinear Electromagnetic Energy Harvester–Structure System under Random Excitation
(ASCE, 9/1/2020 1)Electromagnetic (EM) energy harvesters have been proposed in civil engineering for simultaneous energy scavenging and structural vibration mitigation. One important component governing the performance of EM energy harvester ... -
Instability of Back-Rotated Piles with Near Singularity Stiffness
(ASCE, 9/1/2020 1)The two-layer model previously established by the author is expanded to well capture the response of back-rotated and shape-distorted piles set with P−Δo effect (P is the vertical load on piles and Δo is the initial lateral ... -
Seismic Performance of a Single-Story Articulated Steel Structure System
(ASCE, 10/1/2020 )An innovative articulated steel frame system consisting of continuous beams, columns, and end plates with gap bolts is proposed in this study. The gap bolts are untightened with initial gaps and used to connect beam flanges ... -
Time–Frequency Spectral Representation Models to Simulate Nonstationary Processes and Their Use to Generate Ground Motions
(ASCE, 9/1/2020 1)In the present study, two new models are proposed to model nonstationary stochastic processes with time-frequency-dependent spectra and coherence. The models are developed based on the discrete orthonormal S-transform and ... -
A Real-Time Hybrid Fire Simulation Method Based on Dynamic Relaxation and Partitioned Time Integration
(ASCE, 9/1/2020 1)The use of simplified numerical substructures in hybrid fire simulation is clearly advantageous as long as the resulting simulation accuracy is sufficient. However, excluding geometrical and material nonlinearities from ... -
Nonlinear Dynamic Analysis of Curved Surface Slider Systems Under Harmonic, Near-Fault, and Long-Period Ground Motions
(ASCE, 9/1/2020 1)Seismic isolation is a widely adopted technology for the protection of building infrastructure from earthquakes. As one of the most effective seismic protection devices, curved surface slider (CSS) systems have been studied ... -
Moment Method with Box–Cox Transformation for Structural Reliability
(ASCE, 8/1/2020 1)Structural reliability analysis involving highly nonnormally distributed performance functions or relatively small failure probabilities is still a challenging problem in engineering practice. To overcome these problems, ... -
Modeling, Characterizing, and Testing a Simple, Smooth Negative-Stiffness Device to Achieve Apparent Weakening
(ASCE, 10/1/2020 )Apparent weakening is the softening of a structure’s apparent stiffness by adding negative stiffness to the overall system, which has the benefit of reducing the peak accelerations and base shears induced in the structure ... -
3D Digital Analysis of Cracking Behaviors of Rocks through 3D Reconstruction Model under Triaxial Compression
(ASCE, 8/1/2020 1)The cracking behaviors of rocks significantly affect their mechanical properties. In this paper, a digital analysis approach with X-ray Computed Tomography (CT) imagery is developed to investigate the cracking and mechanical ... -
Dynamic Impact Experiment and Numerical Simulation of Frozen Soil with Prefabricated Holes
(ASCE, 8/1/2020 1)To explore the effects of holes and other defects on the dynamic mechanical properties of frozen soil under impact loading, frozen soil samples with three types of circular hole defects and different apertures were developed, ... -
Size Effect on Shear Strength of Reinforced Concrete: Is CSCT or MCFT a Viable Alternative to Energy-Based Design Code?
(ASCE, 10/1/2020 )After sketching the history of the size effect models for the shear strength of reinforced concrete (RC) in design codes, the energy-based size effect law (SEL), recently incorporated into the American Concrete Institute ... -
Simulation of Split Hopkinson Pressure Bar Tests on Sands with Low Water Content
(ASCE, 8/1/2020 1)The stress-strain response of sand at high strain rate is an important topic. However, most of the numerical studies concentrated on sands at high water content and were not able to capture the softening and subsequent ... -
Surface Gravity Wave Interaction with a Partial Porous Breakwater in the Presence of Bottom Undulation
(ASCE, 9/1/2020 1)Using potential flow theory, oblique wave scattering and trapping by a partial porous breakwater having finite width are studied under the assumption of small-amplitude water wave theory in the presence of seabed undulation. ... -
Analytical Solution for Dynamic Response of Underground Rectangular Fluid Tank Subjected to Arbitrary Dynamic Loads
(ASCE, 8/1/2020 1)In this paper, the dynamic response of underground rectangular fluid tank resting on an elastic foundation and subjected to arbitrary dynamic loads is developed in the form of analytical solution. The dynamic responses ...