Πλοήγηση ανά Συγγραφέα "Karamanos, S. A."
Αποτελέσματα 21-40 από 93
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Efficiency of Eurocode 8 design rules for steel and steel-concrete composite structures
(2015)Seismic design codes allow the realization of structures able to dissipate energy through cyclic plastic deformations located in specific regions, selected to involve the largest number of structural elements. The capacity ... -
Experimental and numerical investigation of pipe T-junctions under strong cyclic loading
(2013)Tee pipe junctions are piping components widely used in industrial and pipeline applications. Their performance under severe loading conditions may be critical for the structural integrity of an industrial facility. When ... -
Experimental and numerical investigation of pressurized pipe elbows under strong cyclic loading
(2013)The present work examines the behavior of pipe elbows subjected to strong cyclic in-plane bending loading in the presence of internal pressure. In the first part of this work the experimental procedure is presented in ... -
Failure of locally buckled pipelines
(2007)Mechanical damage in steel pipelines in the form of local buckles due to excessive bending deformation may severely threaten their structural integrity. The present paper describes experimental and numerical research ... -
Failure of locally buckled pipelines
(2006)Mechanical damage in steel pipelines in the form of local buckles due to excessive bending deformation, may severely threaten their structural integrity. The present paper describes experimental and numerical research ... -
Fatigue failure of buckled pipelines
(2004)Quite often, steel buried pipelines exhibit local buckles due to imposed deformations, which may cause failure because of fatigue from repeated loading. When such buckles are detected in a steel pipeline, a decision must ... -
Finite element analysis of buried steel pipelines under strike-slip fault displacements
(2010)The present paper investigates the mechanical behavior of buried steel pipelines, crossing an active strike-slip tectonic fault The fault is normal to the pipeline direction and moves in the horizontal direction, causing ... -
Finite element analysis of damage in pipeline bends
(2010)The present paper describes a numerical formulation for the analysis of damage in steel pipeline bends. In particular, the numerical implementation of Gurson plasticity model is described in the framework of a special ... -
Finite Element Analysis of Externally-Induced Sloshing in Horizontal-Cylindrical and Axisymmetric Liquid Vessels
(2009)Motivated by the earthquake response of industrial pressure vessels, the present paper investigates externally-induced sloshing in horizontal-cylindrical and axisymmetric liquid containers. Assuming ideal and irrotational ... -
Finite element analysis of industrial steel elbows under strong cyclic loading
(2011)Steel elbows are used in petrochemical facilities and power plants. In the case of an earthquake event, in addition to other service loads, they are subjected to strong repeated cyclic structural loading that may lead to ... -
Finite element analysis of sloshing in AXI-symmetric vessels
(2008)The present paper investigates externally-induced sloshing in axi-symmetric liquid containers, with emphasis on industrial spherical containers, using an efficient numerical formulation, based on modal analysis. Assuming ... -
Finite element analysis of sloshing in horizontal-cylindrical industrial vessels under earthquake loading
(2005)The present paper presents a finite-element formulation for earthquake-induced sloshing in horizontal-cylindrical industrial vessels. Assuming small-amplitude free-surface elevation, a linearized sloshing problem is obtained, ... -
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 ... -
Finite element modeling to expand the UMCCA model to describe biofilm mechanical behavior
(2005)In order to understand the influence of biofilm's physical and microbiological structures on its mechanical behavior, a finite element model that describes the structural mechanics of a composite solid is linked to the ... -
Finite element modelling to expand the UMCCA model to describe biofilm mechanical behavior
(2005)In order to understand the influence of biofilm's physical and microbiological structures on its mechanical behavior, a finite element model that describes the structural mechanics of a composite solid is linked to the ... -
Lateral loading of internally pressurized steel pipes
(2005)The paper examines the denting response of tubular members and pipes subjected to lateral (transverse) quasi-static loading, in the presence of internal pressure. Tubes are modeled with nonlinear shell finite elements, and ... -
Lateral loading of internally pressurized steel pipes
(2007)This paper examines the denting response of pipes subjected to lateral (transverse) quasistatic wedge loading, in the presence of internal pressure. Pipes are modeled with nonlinear shell finite elements and a simplified ... -
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 limits of tubular sections in bending and compression
(2010)In design standards and recommended practices a large scatter can be observed in local buckling limits. Some can be explained from different design focuses and safety requirements but much is not clear. The traditional ... -
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 ...