Journal of Engineering Mechanics: Recent submissions
Now showing items 601-620 of 7001
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Coupled Experimental and Computational Investigation of the Interplay between Discrete and Continuous Reinforcement in Ultrahigh Performance Concrete Beams. I: Experimental Testing
(ASCE, 9/1/2021)Ultrahigh performance concrete (UHPC) is a special class of cementitious composites with superior strength and durability characteristics. Typically, UHPC contains very fine aggregate (size less than 1 mm) and short ... -
Modeling Liquefaction-Induced Large Deformation of Sand Incorporating the Effects of Fabric Anisotropy Evolution
(ASCE, 10/1/2021)Previous studies based on the discrete-element method have pointed out that the evolution of fabric anisotropy plays a significant role in liquefaction, but current constitutive models of sand considering fabric anisotropy ... -
Coupled Experimental and Computational Investigation of the Interplay between Discrete and Continuous Reinforcement in Ultrahigh Performance Concrete Beams. II: Mesoscale Modeling
(ASCE, 9/1/2021)The first experimental campaign presented in the preceding Part I of this study is used to calibrate and validate a comprehensive computational framework called the lattice discrete particle model for fiber-reinforced ... -
Development and Implementation of a Laser–Camera–UAV System to Measure Total Dynamic Transverse Displacement
(ASCE, 8/1/2021)Railroad bridge inspectors are interested in measuring the maximum total transverse displacement of railroad bridges under trains, but these values are generally not easy to obtain in the field without sensors. Engineers ... -
Experimentally-Verified Micromechanical Model of MR Gels Based on Planar Current Loop Model
(ASCE, 8/1/2021)As one of the most promising smart materials, magnetorheological (MR) gels have been widely applied in the vibration mitigation of engineering structures. An accurate and effective model for MR gels is of great significance ... -
Mechanical Model and Optimization Analysis of Multiple Unidirectional Single-Particle Damper
(ASCE, 7/1/2021)Particle dampers have good performance of vibration control and noise reduction, and they have been widely studied and applied in the field of high-frequency vibration control, such as aviation and mechanical engineering. ... -
Influence of Negative Stiffness Damper on Stay Cable with Neoprene Rubber Bushings
(ASCE, 7/1/2021)Stay cables on cable-stayed bridges are inherently low-damped flexible structural members. In order to improve their energy-dissipating capacities, external dampers are installed to control undesired cable vibrations. ... -
Physics-Informed Deep Learning for Computational Elastodynamics without Labeled Data
(ASCE, 8/1/2021)Numerical methods such as finite element have been flourishing in the past decades for modeling solid mechanics problems via solving governing partial differential equations (PDEs). A salient aspect that distinguishes these ... -
Interaction between a Solitary Wave and a Fixed Partially Submerged Body with Two Extended Porous Walls
(ASCE, 7/1/2021)Approximate analytical solutions that can be applied effectively to describe the wave transformation of a solitary wave propagating past a partially submerged stationary body of rectangular shape with two attached side ... -
Thermoelastic Modeling of Layered Composites Considering Bending and Shearing Effects
(ASCE, 7/1/2021)Composite materials and structures often exhibit thermal stresses and deformations due to their thermal expansion mismatch. For a layered laminate, the stress transfer mechanism involves both bending and interfacial shearing, ... -
Stiffness Estimation of Girder Bridges Using Influence Lines Identified from Vehicle-Induced Structural Responses
(ASCE, 8/1/2021)The influence line is an important static property in bridges. The shape and magnitude of the girder bridge influence line contain stiffness information for the bridge supports and beam. This research sought to directly ... -
Analytical and Numerical Approach to Detect Limit and Bifurcation Points of Mises Truss with Out-of-Plane Lateral Linear Spring
(ASCE, 5/1/2021)With the increasing use of high-strength steel, structures are becoming more resistant but also more slender. Therefore, the phenomenon of structural instability must be considered and prevented. It is imperative for the ... -
Deterministic and Random Vibration of Linear Systems with Singular Parameter Matrices and Fractional Derivative Terms
(ASCE, 6/1/2021)Both time- and frequency-domain solution techniques are developed for determining the response of linear multi-degree-of-freedom systems exhibiting singular parameter matrices and endowed with derivative terms of noninteger ... -
Dynamic Performance of Time-Domain Piecewise Linear Stiffness System
(ASCE, 7/1/2021)This paper studies the dynamic performance of two kinds of time-domain piecewise linear stiffness systems, a piecewise positive-stiffness system (PPS) and a piecewise negative-stiffness system (PNS). The PPS is formulated ... -
Effect of Base-Level Inerters on the Higher Mode Response of Uplifting Structures
(ASCE, 8/1/2021)Allowing slender structures to uplift has been used as an efficient means of controlling their seismic response. Oftentimes rocking structures will exhibit some degree of flexibility and cannot be adequately represented ... -
Semianalytical Solution for One-Dimensional Consolidation in a Multilayered Unsaturated Soil System with Exponentially Time-Growing Permeable Boundary
(ASCE, 5/1/2021)This paper proposes new semianalytical solutions to one-dimensional consolidation of unsaturated soils with a multilayered system under the partially permeable boundary condition, in which a time-decaying exponential ... -
Dynamic Damage Constitutive Model of Frozen Silty Soil with Prefabricated Crack under Uniaxial Load
(ASCE, 6/1/2021)Defects, such as holes and flaws, greatly affect the mechanical behavior, failure mechanism, and stress wave propagation of frozen soil. To completely characterize the relationship between the dynamic strength and deformation ... -
S-N Fatigue Curve Determination for Corroded High-Strength Bridge Wires
(ASCE, 5/1/2021)Accurate residual life evaluation is crucial for maintenance of corroded bridge wires, and a stress-life (S-N) curve is determined for the fatigue strength of steel wires after corrosion. The S-N curve is established based ... -
Hencky Bar-Grid Model for Plane Stress Elasticity Problems
(ASCE, 5/1/2021)A novel Hencky bar-grid model (eHBM) was developed to address plane stress elasticity problems. This model comprises rigid bars arranged in a grid which are joined by frictionless hinges, frictionless pulleys, elastic ... -
Numerical Study of the Blast Mitigation Effect of the Shape of a Partially Confined Geometry and Scaling of the Blast Wave Strength
(ASCE, 6/1/2021)We conducted a series of numerical simulations to understand the effect of the shape of a partially confined geometry on blast wave strength, including its scaling method. We referred to an explosion of a high explosive ...