Results 21 to 30 of about 3,502 (261)

Study of The effect of thickness and initial geometric imperfection of cylindrical composite shell on the buckling behavior in axial pressure [PDF]

open access: yesمجله مدل سازی در مهندسی, 2018
Today, composite cylindrical shells extensively, have been used in aerospace to increase the performance of the structures. Experience has shown that, when the shells are under compressive loading, Buckling phenomenon will be the most important factor in
ebrahim alizadeh   +4 more
doaj   +1 more source

Numerical Homogenization of Single-Walled Corrugated Board with Imperfections

open access: yesApplied Sciences, 2022
Numerical homogenization is an excellent tool for the quick simplification of complex structures with a model that is much simpler and, at the same time, accurately reflects the mechanical behavior of the original model.
Damian Mrówczyński   +2 more
doaj   +1 more source

Imperfect Geometric Control and Overdamping for The Damped Wave Equation [PDF]

open access: yesCommunications in Mathematical Physics, 2014
We consider the damped wave equation on a manifold with imperfect geometric control. We show the sub-exponential energy decay estimate in \cite{Chr-NC-erratum} is optimal in the case of one hyperbolic periodic geodesic. We show if the equation is overdamped, then the energy decays exponentially.
Burq, Nicolas, Christianson, Hans
openaire   +2 more sources

Optimal Design of Trusses With Geometric Imperfections

open access: yes13th AIAA/ISSMO Multidisciplinary Analysis Optimization Conference, 2010
The present paper focuses on optimization of trusses that have randomness in geometry that may arise from fabrication errors. The analysis herein is a generalization of a perturbation approach to topology optimization under geometric uncertainties. The main novelty in the present paper is in the consideration of potential buckling due to misaligned ...
Mehdi Jalalpour   +2 more
openaire   +2 more sources

Consistency of Imperfections in Steel Eurocodes

open access: yesApplied Sciences, 2022
The second-order theory was used to analyze the flexural buckling of an individual member simply supported on both member ends, with a uniform double symmetric cross-section under a uniform axial force in an elastic state.
Ivan Baláž   +3 more
doaj   +1 more source

Buckling and post-buckling of prestressed stainless steel stayed columns

open access: yesEngineering Structures and Technologies, 2017
Prestressed stayed compression members are frequently required as very slender load-bearing structural components by both investors and architects. Behavior of these members depends on their geometrical and material properties, prestressing and boundary ...
Radek Pichal, Josef Machacek
doaj   +1 more source

Behaviour of thin-walled cylindrical and conical shells: Carbon vs. stainless steel [PDF]

open access: yesGrađevinski Materijali i Konstrukcije, 2019
Thin-walled cylindrical and conical shells represent one of the most complex structural elements considering their behaviour and susceptibility to buckling.
Kostadinović-Vranešević Kristina   +3 more
doaj  

Shape and Size of Initial Geometrical Imperfections of Structural Glass Members

open access: yesTransactions of the VŠB: Technical University of Ostrava, Civil Engineering Series, 2017
In this paper measuring and determining of initial geometrical imperfections of set of glass members are presented. Measured specimens had the different dimensions and different composition – monolithic glass or laminated glass using different types of ...
Pešek Ondřej, Melcher Jindřich
doaj   +1 more source

Thermal stability analysis of eccentrically stiffened Sigmoid-FGM plate with metal–ceramic–metal layers based on FSDT

open access: yesCogent Engineering, 2016
This paper researches the thermal stability of eccentrically stiffened plates made of functionally graded materials (FGM) with metal–ceramic–metal layers subjected to thermal load. The equilibrium and compatibility equations for the plates are derived by
Pham Hong Cong, Nguyen Dinh Duc
doaj   +1 more source

Multidimensional Characterisation of Time-dependent Image Data: A Case Study for the Peripheral Nervous System in Ageing Mice

open access: yesImage Analysis and Stereology, 2021
Segmentation of µm-resolution image data of irregularly shaped objects poses challenges to existing segmentation algorithms. This is especially true, when imperfections like noise, uneven lightning or traces of sample preparation are present in the image
Matthias Weber   +2 more
doaj   +1 more source

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