Results 21 to 30 of about 1,126 (265)
FUNDAMENTAL MODELS OF STRUCTURAL STABILITY
Rudarsko-geološko-naftni Zbornik, 2017 In this paper, basic structural stability phenomena are described. After some general comments about stability in the field of civil engineering, four elementary sources of nonlinearity are mentioned: of equilibrium equations, strain (geometry) relations,
Antonia Jaguljnjak Lazarević +2 more
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Cold-formed RHS T joints with initial geometrical imperfections
, 2018 Peer ...
Garifullin, M. +4 more
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Modelling Initial Geometric Imperfections of Steel Plane Frames Using Entropy and Eigenmodes
International Journal of Mechanics, 2023 The article introduces an innovative approach to modelling initial geometric imperfections in steel plane frames. Initial imperfections are introduced using the analysis of normalised deformations of elastic buckling modes. The scale of these modes is assessed by applying Shannon entropy and potential energy analysis.
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Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading
Advanced Engineering Materials, EarlyView.This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev +2 more
wiley +1 more source
Buckling Knockdown Factors for Hemispherical Foam Core Sandwich Shells With Single Dimple
International Journal of Aerospace EngineeringIn this study, nonlinear postbuckling analyses are performed using ABAQUS to derive the buckling knockdown factors (KDFs) for hemispherical foam core sandwich shells under external pressure.
Chang-Hoon Sim +4 more
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Analysis of initial geometric imperfections in transmission tower structures
Journal of Physics: Conference SeriesAbstract To clarify the influence of initial defects on transmission tower structures, this study proposes a computational methodology for quantifying initial defects in transmission tower systems, termed the Direct Defect Analysis Method (DDAM).
Qigang Sun +4 more
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A Practical Noise2Noise Denoising Pipeline for High‐Throughput Raman Spectroscopy
Advanced Engineering Materials, EarlyView.A lightweight and reproducible denoising pipeline for high‐throughput Raman spectroscopy is introduced, based on a 1D convolutional autoencoder trained with a Noise2Noise strategy. Using only repeated short‐exposure acquisitions, the method suppresses stochastic noise without reference spectra, enabling reliable spectral reconstruction while preserving
David Martin‐Calle +5 more
wiley +1 more source
Post-Buckling Range of Plates in Axial Compression with Uncertain Initial Geometric Imperfections [PDF]
Applications of Mathematics, 2002 The paper deals with the worst scenario method which is applied to von Kármán equations with uncertain initial deflection. Assuming two mode initial and total deflection and using Galerkin method, the problem leads to a system of two nonlinear algebraic equations with one or two uncertain parameters.
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Advanced Engineering Materials, EarlyView.This study explores the discrepancies between bulk mechanics and spatial mapping in a tissue‐mimetic hydrogel model. Microplastic particles create localized stiff mechanical microenvironments that are detectable by cellular‐scale nanoindentation but leave bulk properties unchanged as measured by rheology.
Ahron T. Verschleisser +3 more
wiley +1 more source
Alternative approach to the buckling phenomenon by means of a second order incremental analysis
Scientific Reports, 2023 This article addresses the problem of determining the solicitation and deformation of beams with geometric imperfection, also called real beams under a compression action.
Faustino N. Gimena +3 more
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