Browsing by Author "Karamanos, S. A."
Now showing items 41-60 of 93
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Longitudinal sloshing effects in half full horizontal cylindrical vessels
(2003)A semi-analytical mathematical model is developed for sloshing effects in half-full horizontal cylindrical viscous liquid vessels, under arbitrary longitudinal external excitation. The velocity potential is expressed in a ... -
Low cycle fatigue tests and simulations on steel elbows
(2013)In this paper the low cycle fatigue behaviour of steel elbows under strong cyclic loading conditions (in-plane and out-of-plane) is examined. The investigation is conducted through advanced finite element analysis tools, ... -
Low-Cycle Fatigue of Pressurized Steel Elbows Under In-Plane Bending
(2015)The present study examines the mechanical behavior of steel process piping elbows, subjected to strong cyclic loading conditions. The work is numerical, supported by experimental data on elbow specimens subjected to in-plane ... -
Mechanical behavior and wrinkling of lined pipes
(2012)The paper focuses on wrinkling of lined pipes (sometimes referred to as clad pipes) under bending loading, where a corrosion-resistant thin-walled liner is fitted inside a carbon-steel outer pipe. The problem is solved ... -
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 ... -
Mechanical behavior of buried steel pipes crossing active strike-slip faults
(2012)The present paper addresses the mechanical behavior of buried steel pipes crossing active strike-slip tectonic faults. The pipeline is assumed to cross the vertical fault plane at angles ranging between zero and 45 degrees. ... -
Mechanical behavior of steel pipes with local wall distortions under cyclic loading
(2012)Evaluating the severity of pipe wall distortions is a crucial step towards safeguarding the structural integrity of aging hydrocarbon pipeline infrastructure. The present research refers to the remaining life of oil and ... -
Mechanics of Confined Thin-Walled Cylinders Subjected to External Pressure
(2014)Motivated by practical engineering applications, the present paper examines the mechanical response of thin-walled cylinders surrounded by a rigid or deformable medium, subjected to uniform external pressure. Emphasis is ... -
Nonlinear response and failure of steel elbows under in-plane bending and pressure
(2003)The paper investigates the response of elbows under in-plane bending and pressure, through nonlinear finite element tools, supported by experimental results from real-scale tests. The finite element analysis is mainly based ... -
Numerical implementation of J 2 non-associative flow plasticity models
(2009)The present paper describes a J2 non-associative plasticity model, which takes into account the "corner-like" effects at the loading point on the yield surface, and is suitable for shell buckling calculations. The plastic ... -
Numerical modelling of steel pipelines subjected to severe monotonic and cyclic straining
(2014)Offshore and onshore pipelines may experience extreme loading conditions during their installation and operation, both of monotonic and cyclic nature. Loading actions such as pipeline lateral displacements, tensioning, or ... -
Numerical simulation of buried steel pipelines under strike-slip fault displacements
(2011)The paper examines the structural response of buried butt-welded steel pipelines, crossing active strike-slip tectonic faults, which are vertical and perpendicular to the pipeline axis. The interacting soil-pipeline system ... -
On the fatigue design of K-joint tubular girders
(2000)The fatigue design of welded tubular lattice structures is preferably based on the hot-spot stress method, combining nominal stresses and Stress Concentration Factors (SCF). In the present paper, the fatigue design of ... -
On the seismic behaviour and design of liquid storage tanks
(2011)The paper examines some special issues on the structural behaviour of upright-cylindrical liquid storage tanks, which are widely used in industrial facilities and for water storage. Two main design standards are considered: ... -
Onshore pipeline high-grade steel for challenge utilization
(2014)High pressure pipeline transportation is one of the key technologies to connect remote gas fields and deliver gas at competitive prices to consumption markets. Arctic regions will become more attractive in the near future ... -
Optimal sensor and actuator configuration for structural identification
(2001)A methodology is presented for designing cost-effective optimal sensor and actuator configurations useful for structural model updating and health monitoring purposes. The optimal sensor and actuator configuration is ... -
Pipe Elbows Under Strong Cyclic Loading
(2013)Motivated by the response of industrial piping under seismic loading conditions, the present study examines the behavior of steel process piping elbows, subjected to strong cyclic loading conditions. A set of experiments ... -
Pipe elbows under strong cyclic loading
(2012)Motivated by the response of industrial piping under seismic loading conditions, the present study examines the behavior of steel process piping elbows, subjected to strong cyclic loading conditions. A set of experiments ... -
Pipe response under concentrated lateral loads and external pressure
(2006)The paper focuses on the denting the response of pipeline segments subjected to lateral quasi-static wedge loading, in the presence of internal pressure. Nonlinear finite element models of pipeline segments, which are in ... -
Pipe response under concentrated lateral loads and external pressure
(2005)The present paper examines the denting deformation of offshore pipelines and tubular members (D/t≤50) subjected to lateral (transverse) quasi-static loading in the presence of uniform external pressure. Particular emphasis ...