Results 61 to 70 of about 8,118 (208)

Geometrical and Structural Imperfections of Steel Member Systems

open access: yesProcedia Engineering, 2012
AbstractThe paper is focused on the influence of geometrical and structural imperfections in selected load-bearing steel structures from the point of view of the whole load-bearing system. Implemented member steel structures show a varying degree of shape and structural deviations from the presumed idealized state.
Šmak, M., Straka, B.
openaire   +1 more source

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

Sensitivity Analysis of Radiative Heat Loading to Tube Coil with Geometric Imperfections

open access: yesChemical Engineering Transactions, 2016
The tube coil in real fired heater after some use deviates from the ideal designed geometry. The tubes slightly bend and depending on the quality of the hooks on which they are suspended, they may also shift from their design positions. Such behaviour is
J. Hájek, Z. Jegla
doaj   +1 more source

Influence of Imperfections on Axial Buckling Load of Composite Cylindrical Shells

open access: yes, 2013
There is a strong requirement for more robust, lighter and cheaper launch vehicle structures. Unstiffened composite cylindrical shells, which are essential to the fabrication of launch vehicle airframes, are prone to buckling and are highly sensitive to ...
Prusty, G.   +5 more
core  

Finite Element Modeling of the Behaviors of Concrete-Filled Steel Tube (CFT) Columns at Elevated Temperatures

open access: yesBuildings
Concrete-filled steel tube (CFT) columns are widely used as structural systems because of their high load-bearing capacity and material efficiency. However, under fire conditions, elevated temperatures degrade the mechanical properties of both steel and ...
Van Lanh Le   +3 more
doaj   +1 more source

Determining geometric out-of-plane imperfections in steel tied-arch bridges using strain measurements

open access: yes, 2014
The structural behavior of steel tied-arch bridges is determined by the presence of a large compressive force. As a consequence, slender steel arches are highly sensitive to in-plane as well as out-of-plane buckling.
De Backer, Hans   +2 more
core   +1 more source

Assessing the Wind-Bearing Capacities of Plastic Greenhouse Frames Used in Southern China and the Performance of Reinforcement Measures

open access: yesBuildings
To meet the growing requirements of agricultural mechanization, a newly designed 9.5 m span frame has been introduced to replace the traditional 8.0 m span frame, which is constrained by limited internal space.
Ming Li   +3 more
doaj   +1 more source

Buckling Analysis of Cylindrical Shells using Stochastic Finite Element Method with Random Geometric Imperfections

open access: yes, 2022
Thin‐walled cylindrical shells often exhibit buckling failure and the experimental buckling load is usually lower than calculation results from classical theory and simulation without geometrical imperfection.
Li, Zheng   +2 more
core   +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

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