Parcourir par sujet "Buckling"
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Finite element analysis of UOE manufacturing process and its effect on mechanical behavior of offshore pipes
(2016)Thick-walled steel pipes during their installation in deep-water are subjected to a combination of loading in terms of external pressure, bending and axial tension, which may trigger structural instability due to excessive ... -
Finite element analysis of UOE pipes under external pressure and bending
(2014)Thick-walled steel pipes manufactured through the UOE process are used in deep-water pipeline applications for the safe and cost-effective transmission of hydrocarbon energy resources. Such pipes are subjected to bending ... -
A framework for formulating and implementing non-associative plasticity models for shell buckling computations
(2022)In modelling the behavior of thick-walled metal shells under compressive loads, the use of J2 flow theory can lead to unrealistic buckling estimates, while alternative ‘corner’ models, despite offering good predictions, ... -
High-strength steel tubular welded joints under extreme loading conditions
(2016)The present work examines the behavior of high-strength steel welded tubular connections subjected to extreme loading conditions, focusing on their monotonic and low-cycle fatigue performance. The work consists of two ... -
Improving the Performance of Steel Pipe Welded Lap Joints in Geohazard Areas
(2016)Finite element simulation of the structural performance of stiffened lap welded pipeline joints was performed, subjected to severe axial and bending loading conditions, resulting from ground-induced actions, in the presence ... -
Influence of lined pipe fabrication on liner wrinkling
(2019)An economical method to protect offshore pipelines against corrosive ingredients of hydrocarbons is a double-walled (also called “lined” or “bi-metallic”) pipe, in which a thick-walled low-alloy carbon steel (“outer pipe”) ... -
Load Path Effects in Circular Steel Columns under Bidirectional Lateral Cyclic Loading
(2015)Rigorous numerical analyses are conducted to study the effects of bidirectional lateral cyclic loading on the hysteretic response of stocky circular thin-walled steel columns. Four unidirectional and eight bidirectional ... -
Local buckling and deformation capacity of tubes in steel structures
(2008)In this paper, the focus is on local buckling limits after yielding of the cross section (plastic buckling). This is in contrast to thin cylindrical shells, where local buckling occurs at stresses below the yield stress ... -
Local buckling strength and deformation capacity of pipes
(2009)Local buckling in cylindrical shells may occur elastically or plastically, mainly depending on the diameter to wall thickness ratio. In offshore structures plastic local buckling is mostly the governing criterion. In thin ... -
A mathematical method for the determination of the critical axial loads of continuous beams with unilateral constraints for various initial geometric imperfections
(2013)This paper deals with the calculation of the axial critical loads of continuous beams with unilateral constraints. The paper emphasizes in the determination of the instability loads of continuous beams with initial geometric ... -
Mechanical behavior of buried steel pipelines crossing strike-slip seismic faults
(2011)The present paper investigates the mechanical behaviour of buried steel pipelines, crossing active strike-slip tectonic faults. The fault plane is vertical and perpendicular to the pipeline axis. The interacting soil-pipeline ... -
Modeling atomic force microscopy and shell mechanical properties estimation of coated microbubbles
(2020)We present an extensive comparison with experimental data of our theoretical/numerical model for the static response of coated microbubbles (MBs) subject to compression from an atomic force microscope (afm). The mechanics ... -
A new concept for improving the structural resilience of lap-welded steel pipeline joints
(2022)Lap-welded steel joints are widely used in steel pipelines for water transmission, and their structural resistance is essential for safeguarding pipeline integrity and functionality after severe earthquakes or other ... -
Non-associative J2 plasticity model for finite element buckling analysis of shells in the inelastic range
(2016)The development and numerical implementation of a special-purpose constitutive model is described for investigating the structural stability of cylindrical metal shells under axial compression and bending, which buckle in ... -
Performance criteria for liquid storage tanks and piping systems subjected to seismic loading
(2015)In this paper, performance criteria for the seismic design of industrial liquid storage tanks and piping systems are proposed, aimed at defining a performance-based design framework towards reliable development of fragility ... -
Performance Criteria for Liquid Storage Tanks and Piping Systems Subjected to Seismic Loading
(2017)In this paper, performance criteria for the seismic design of industrial liquid storage tanks and piping systems are proposed, aimed at introducing those industrial components into a performance-based design (PBD) framework. ... -
Pipe-soil interaction and pipeline performance under strike-slip fault movements
(2015)The performance of pipelines subjected to permanent strike-slip fault movement is investigated by combining detailed numerical simulations and closed-form solutions. First a closed-form solution for the force-displacement ... -
Retrofit of Damaged RC Columns Using CFRP Jackets
(2022)This paper presents results of an experimental program undertaken to investigate the possibility of application of carbon fiber reinforced polymer (CFRP) jackets to reduce the risk of rebar buckling of axially loaded RC ... -
Simplified model for the seismic performance of unanchored liquid storage tanks
(2015)Ground-supported unanchored liquid-storage cylindrical tanks, when subjected to strong seismic loading may exhibit uplifting of their bottom plate, which has significant effects on their dynamic behavior and strength. Those ... -
Simulation of industrial elbow response under strong cyclic loading
(2011)Elbow components are widely used in industrial facilities as parts of piping/tubing systems. Their performance under severe loading conditions may be critical for the structural integrity of an industrial facility In the ...