Results 81 to 90 of about 22,237,137 (269)

Elastic and elastoplastic analysis of surrounding rock in CAES chambers considering excavation‐induced centripetal exponential reduction in mechanical properties

open access: yesDeep Underground Science and Engineering, EarlyView.
This study presents an analytical framework for evaluating stress distribution in compressed air energy storage (CAES) chambers, incorporating excavation‐induced damage. Key findings highlight the impact of excavation disturbed zones (EDZs) on stress patterns and bearing capacity, offering design strategies to optimize chamber stability and improve ...
Zeyuan Sun   +6 more
wiley   +1 more source

A Force‐Based Beam‐Column Element With Selective Gradient‐Inelasticity for Softening Materials in 3‐Dimensional Nonlinear Analysis

open access: yesEarthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Fiber‐based beam‐column elements featuring an effective material constitutive law with softening can capture the degrading response of structural members under extreme loading. However, these elements exhibit strain localization and mesh divergence, which impedes their accuracy.
Diego Isidoro Heredia Rosa   +4 more
wiley   +1 more source

On a Thermoelastic Laminated Timoshenko Beam: Well Posedness and Stability

open access: yesComplexity, 2020
In this paper, we are concerned with a linear thermoelastic laminated Timoshenko beam, where the heat conduction is given by Cattaneo’s law. We firstly prove the global well posedness of the system.
Baowei Feng
doaj   +1 more source

Experimental Modal Analysis‐Driven Gaussian Process Regression Modeling of Rectangular Steel Beams With Various Hole Geometries

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Understanding the dynamic behavior of structural components is crucial for optimizing performance and ensuring structural integrity. This study presents a new method that combines a systematic experimental investigation of four distinct hole geometries (circular, square, compact rectangular, and long rectangular) with varying hole counts, all ...
Amir Hossein Rabiee   +3 more
wiley   +1 more source

Drivers of human attitudes towards wolves Canis lupus in Kazakhstan

open access: yesPeople and Nature, EarlyView.
Abstract Kazakhstan is recognized as a key stronghold for the grey wolf (Canis lupus). Nonetheless, the wolf status and the dynamics of human‐wolf coexistence in the region remain poorly understood. This study aims to fill that gap by exploring current attitudes towards wolves in Kazakhstan and identify the underlying drivers of these attitudes.
Alyona Koshkina   +5 more
wiley   +1 more source

Energy decay for damped Timoshenko-Ehrenfest systems under influence of the second spectrum of frequency [PDF]

open access: green, 2022
Dilberto Almeida   +5 more
openalex   +1 more source

RC beam‐column element for simulating nonlinear shear‐flexural behavior

open access: yesStructural Concrete, EarlyView.
Abstract This paper presents a precise and straightforward solution for simulating the behavior of reinforced concrete (RC) beam‐column elements subjected to bending and shearing forces. The solution is compatible with the fiber element formulation used within object‐oriented software frameworks like OpenSees.
L. M. Gil‐Martín   +1 more
wiley   +1 more source

Wave propagation characteristics in nanoporous metal foam nanobeams

open access: yesResults in Physics, 2019
This research is devoted to the wave propagation characteristics analysis of nanobeams made of nanoporous metal foams. Three nanoporosity distribution models, namely, symmetry, asymmetry and uniform distributions, are taken into account.
Yan Qing Wang, Chen Liang
doaj   +1 more source

Multi‐fidelity data meta‐learning approach for seismic response prediction of high‐rise shear wall buildings

open access: yesComputer-Aided Civil and Infrastructure Engineering, EarlyView.
Abstract Rapid and accurate estimation of seismic responses in city‐scale buildings is critical for post‐earthquake loss assessment and pre‐event identification of vulnerable buildings. However, conventional numerical simulation methods struggle to balance efficiency and accuracy when applied to large‐scale buildings, while existing data‐driven methods
Chenyu Zhang   +3 more
wiley   +1 more source

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