Πλοήγηση ανά Θέμα "Pipelines"
Αποτελέσματα 21-40 από 65
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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
(2011)The present paper investigates the mechanical behavior of buried steel pipelines, crossing active strike-slip tectonic faults. The fault plane is vertical and crosses the pipeline axis at a certain angle. The interacting ... -
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 Steel Lap Welded Joint Behavior under Severe Seismic Loading Conditions
(2019)The present paper extends the experimental and numerical research presented at the ASCE 2018 conference. The paper is numerical, based on a shell finite element simulation of the welded lap joint subjected to internal ... -
Finite Element Analysis of the Mechanical Behavior of Mitered Steel Pipe Elbows under Bending and Pressure
(2016)Using finite element simulation tools, which account for both geometric and material nonlinearities, the bending capacity of mitered steel pipe bends is investigated. First, numerical results are reported on the elastic ... -
A High-Performance Neuron for Artificial Neural Network based on Izhikevich model
(2019)Neuromorphic circuits have gained a lot of interest through the last decades since they may be deployed in a large spectrum of scientific research. In this paper a hardware realization of a single neuron targeting Field ... -
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 ... -
Instruction-Flow-Based Timing Analysis in Pipelined Processors
(2019)Microprocessor design utilizes timing analysis in order to establish the maximal operation clock speed of the circuit. In static timing analysis, clock frequency is set in accord with the worst-case delay in the circuit ... -
Joint Strength or "Efficiency" Factors of Steel Lap Welded Joints for Use in Water Conveyance
(2019)Joint "efficiency" factors are proposed for pressure vessels, piping, and pipelines by ASME standards. For the particular case of non-radiographically-tested lap-welded joints, a low value of joint "efficiency" is proposed. ... -
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 ... -
Low-power Near-data Instruction Execution Leveraging Opcode-based Timing Analysis
(2022)Traditional processor architectures utilize an external DRAM for data storage, while they also operate under worst-case timing constraints. Such designs are heavily constrained by the delay costs of the data transfer between ... -
A machine learning pipeline for predicting joint space narrowing in knee osteoarthritis patients
(2020)Osteoarthritis is the common form of arthritis in the knee (KOA). It is identified as one of the main causes of pain leading even to disability. To exploit the continuous increase in medical data concerning KOA, various ... -
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 dented steel pipes subjected to bending and pressure loading
(2019)The presence of dents on steel pipeline wall may constitute a threat for pipeline structural safety. Experimental testing results supported by numerical simulations are reported, in an attempt to assess the structural ... -
Mechanical Behavior of Steel Pipe Bends: An Overview
(2016)An overview of the mechanical behavior of steel pipe (elbows) is offered, based on previously reported analytical solutions, numerical results, and experimental data. The behavior of pipe bends is characterized by significant ... -
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 ... -
Mechanical Response of Steel Pipe Welded Lap Joints in Seismic Areas
(2017)Nonlinear finite element simulation tools are employed to investigate the bending capacity of internally-pressurized double-welded lap pipeline joints for a typical steel, with D | t value equal to 191.5. The study constitutes ... -
Modelling of spiral-welded pipe manufacturing and its effect on pipeline structural performance
(2016)The increasing use of large-diameter spiral-welded pipes in demanding hydrocarbon pipeline applications constitutes an engineering challenge, which requires the definition of an appropriate strain-design framework. In the ... -
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 ...