Results 31 to 40 of about 1,447 (166)

Analyses of Deepwater Pipeline Walking Under Cyclic Temperature and Pressure Loads

open access: yesJournal of Marine Science and Engineering
Pipeline walking induced by cyclic temperature and pressure loadings is a challenge in the design of deepwater subsea pipelines. To investigate the walking mechanisms, a 3D non-linear finite element (FE) model incorporating realistic pipe-soil ...
Xinhu Zhang   +3 more
doaj   +1 more source

Evaluation of the Critical Buckling Load Factor in Predesign of Natural-Draft Cooling Towers Considering Finite-Element Discretization Uncertainty and Geometric Imperfections

open access: yesBuildings
The critical buckling load factor λcr is routinely used as predesign indicator for natural-draft cooling towers, yet its safety meaning is often opaque because imperfection sensitivity and modelling options are embedded implicitly.
Antonio Tomás   +2 more
doaj   +1 more source

Investigations of the Effects of Geometric Imperfections on the Nonlinear Static and Dynamic Behavior of Capacitive Micomachined Ultrasonic Transducers

open access: yesMicromachines, 2018
In order to investigate the effects of geometric imperfections on the static and dynamic behavior of capacitive micomachined ultrasonic transducers (CMUTs), the governing equations of motion of a circular microplate with initial defection have been ...
Aymen Jallouli   +2 more
doaj   +1 more source

Influence of geometric imperfections on the axially loaded composite conical shells with and without cutout

open access: yesAIP Advances, 2020
The nonlinear stability analysis of a structure with initial geometric imperfections is very complex, difficult, and unsolved yet in designing. At present, there are no unified design guidelines for imperfection sensitive metal shells (spherical ...
Zhun Li, Yonghui Cao, Guang Pan
doaj   +1 more source

Overview of FEM-Based Resistance Models for Local Buckling of Welded Steel Box Section Columns

open access: yesApplied Sciences
The local buckling behavior of welded square box section columns subjected to pure compression is investigated. Local buckling represents a crucial failure mode in thin-walled structures, exerting a significant impact on their overall stability and load ...
Irvin Quillupangui   +2 more
doaj   +1 more source

Analysis of Out-Of-Plane Stability of Bow-String Arches

open access: yesCommunications, 2016
Several arch bridge superstructures, designed by the authors of the paper, are presented and analysed. Spatial FEM models were utilised to analyse behaviour of each bridge.
Josef Vican   +2 more
doaj   +1 more source

Vertical cylindrical tank with angular geometrical imperfection [PDF]

open access: yesJournal of Civil Engineering and Management, 2005
In this paper the results of experimental research are given for the stress and strain state of a near seam zone. The research is executed on largeâ€scale model of a zone of vertical cylindrical tank assembly connection with a geometrical imperfection.
Gorochov, Yevgeny   +3 more
openaire   +2 more sources

Buckling And Postbuckling Of An Imperfect Plate Subjected To The Shear Load

open access: yesTransactions of the VŠB: Technical University of Ostrava, Civil Engineering Series, 2015
The stability analysis of an imperfect plate subjected to the shear load is presented. To solve this problem, a specialized computer program based on FEM has been created.
Psotný Martin
doaj   +1 more source

Stability Bearing Capacity of 6061-T6 Aluminum Alloy Thin-Walled Tubular Members Under Axial Compression Based on the Continuous Strength Method

open access: yesBuildings
In this study, experimental, numerical, and theoretical approaches were conducted to investigate the stability bearing capacity of the 6061-T6 aluminum alloy thin-walled tubular members under axial compression.
Linna Yin   +4 more
doaj   +1 more source

INFLUENCE OF BUCKLING FORMS INTERACTION ON STIFFENED PLATE BEARING CAPACITY

open access: yesInternational Journal for Computational Civil and Structural Engineering, 2020
The work is devoted to studying the influence of initial geometric imperfections on a value of the peak load for the compressed stiffened plate with the two-fold buckling load.
Gaik Manuylov   +2 more
doaj   +1 more source

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