Journal of Engineering Mechanics: Recent submissions
Now showing items 841-860 of 7001
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Simulation and Peak Value Estimation of Non-Gaussian Wind Pressures Based on Johnson Transformation Model
(ASCE, 2020)The simulation and peak value estimation of non-Gaussian wind pressures are important to the structural and cladding design of the building. Due to its straightforwardness and accuracy, the moment-based Hermite polynomial ... -
Computationally Efficient Three-Dimensional Continuum-Based Model for Nonlinear Analysis of Laterally Loaded Piles
(ASCE, 2020)A computationally efficient continuum-based model is developed for obtaining the nonlinear response of pile foundations subjected to a static horizontal force and/or moment at the pile head. In the analysis, the soil is ... -
Analytical and Numerical Shape Optimization of a Class of Structures under Mass Constraints and Self-Weight
(ASCE, 2020)This paper first extends a classical solution concerning the shape optimization of a hanging bar. The well-known solution determines the optimal cross section of a homogeneous bar that minimizes elongation under its own ... -
Numerically Stable Solutions to the State Equations for Structural Analyses
(ASCE, 2020)The state space method has been widely used to analyze the static and dynamic characteristics of homogeneous, laminated, functionally graded, or even intelligent structures. However, the solution of the state equation using ... -
Constitutive Model for Brittle Granular Materials Considering Competition between Breakage and Dilation
(ASCE, 2020)A constitutive model is presented for brittle granular materials based on a recent reformulation of the breakage mechanics theory. The primary objective of the study is to capture peak strength with subsequent strain ... -
Mechanical Behavior of Hybrid Lattices Composed of Elastic and Elastoplastic Struts
(ASCE, 2020)The mechanical behavior of cellular solids has been extensively studied in the literature. Nevertheless, possible structural effects of inhomogeneities in the form of elastoplastic struts have not yet been investigated. ... -
Concrete Creep Modeling: Application to Slabs on Ground
(American Society of Civil Engineers, 2019)Moisture warping of concrete slab occurs as a long process due to the slow transportation nature of moisture in concrete materials. Creep, as a time-dependent property of concrete, will inevitably affect the mechanical ... -
Study on the Effect of Flexible Layer on Support Structures of Tunnel Excavated in Viscoelastic Rocks
(American Society of Civil Engineers, 2019)Support is one of the most important aspects that contribute to long-term stability and tunnel safety. Lining cracking and even failure often occur during tunneling construction, especially for soft rock tunnels. To address ... -
Dependency of Dilatancy Ratio on Fabric Anisotropy in Granular Materials
(American Society of Civil Engineers, 2019)The relationship between dilatancy and anisotropy is a fundamental aspect of anisotropic behavior of granular materials. Existing test data directly investigating this relationship are scarce and conflicting. Discrete ... -
Asynchronous Spacetime Discontinuous Galerkin Formulation for a Hyperbolic Time-Delay Bulk Damage Model
(American Society of Civil Engineers, 2019)A bulk damage formulation is presented for failure analysis of brittle materials under dynamic loading. A time-delay ordinary differential equation (ODE) is used to model damage evolution. The evolution is driven by the ... -
Prediction of Elastic Properties of Cementitious Materials Based on Multiphase and Multiscale Micromechanics Theory
(American Society of Civil Engineers, 2019)Prediction of the elastic properties of cementitious materials has been the aim of many researchers. This study developed a new multiscale and multiphase model based on the Mori-Tanaka method for predicting effective elastic ... -
Grain Rotation-Based Analysis Method for Shear Band
(American Society of Civil Engineers, 2019)The grain rotational field is significantly associated with the shear banding process and can be derived easily on the basis of individual grains, which could be an appropriate and convenient quantity in shear band analysis. ... -
Determining Extent of Singular-Dominant Region for Interface Cracks Using Deoscillatory Displacement Jumps
(American Society of Civil Engineers, 2019)Because of oscillatory asymptotic mechanical behavior, it is difficult to properly examine the extent of the near-front singular-dominant region for interface cracks. An approach is proposed for generating a near-front ... -
Optimization of Frame Structures with Kinematical Indeterminacy for Optimum Folding
(American Society of Civil Engineers, 2019)The principle of folding analysis of frame structures with kinematical indeterminacy is widely used in the field of engineering. However, the design process of the efficient configuration for spatial structures in ... -
Efficient Woodbury-CA Hybrid Method for Structures with Material and Geometric Nonlinearities
(American Society of Civil Engineers, 2019)Nonlinearity problems in engineering structures primarily involve material nonlinearity and geometric nonlinearity. Significant effort has gone toward developing accurate and efficient models and methods to simulate these ... -
Real-Time Aerodynamics Hybrid Simulation: A Novel Wind-Tunnel Model for Flexible Bridges
(American Society of Civil Engineers, 2019)Despite rapid development in computational fluid dynamics, semiempirical analyses based on parameters identified from spring-mounted sectional models are still widely used to examine wind-induced effects on bridges. In ... -
Direct Determination of Dynamic Elastic Modulus and Poisson’s Ratio of Rectangular Timoshenko Prisms
(American Society of Civil Engineers, 2019)In this paper, the exact solution of the Timoshenko beam vibration frequency equation under free-free boundary conditions is determined with an accurate shear shape factor. The exact solution is compared with a three-dimensional ... -
Bandgap Characteristics and Seismic Applications of Inerter-in-Lattice Metamaterials
(American Society of Civil Engineers, 2019)Longitudinal elastic wave propagation characteristics of a proposed inerter-in-lattice metamaterial (ILM) were investigated. Its local resonance emerges from the additional degree of freedom induced by a series combination ... -
Theoretical and Experimental Validation of Point Load Strength Test for Irregular Lumps
(American Society of Civil Engineers, 2019)The possibility of testing irregular lumps under the point load strength test (PLST) was investigated theoretically and experimentally. In particular, a new analytical solution for stress distribution within a sphere under ... -
Mechanistic Sieve-Size Classification of Aggregate Gradation by Characterizing Load-Carrying Capacity of Inner Structures
(American Society of Civil Engineers, 2019)To choose the maximum dividing sieve sizes for multiscale analysis, a mechanistic classification principle of sieve sizes is developed to characterize the size ranges of four inner structures in an aggregate’s gradation. ...