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Displaying records 189 through 189 of 2180
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Title: An FEM analysis of the impact of external objects on pipelines
Category: Technical papers from the Journal of Pipeline Integrity
Downloadable: Yes 
Catalog No.: 2045
Date of Publication: Quarter 4 2003
Price: $25.00 US
Authors: Robert Gracie, Ibrahim Konuk, and Abdelfettah Fredj
Abstract: One of the most common hazards to pipelines is impact of external objects. Earth-moving machinery, farm equipment, or bullets can dent or fail land pipelines; external objects such as anchors, fishing gear, and ice can damage offshore pipelines. This paper develops a finite-element method (FEM) model to simulate the impact process, and presents investigations using the model to determine the influence of the geometry and velocity of the impacting object; it also studies the influence of the pipe diameter, wall thickness, and concrete coating thickness, along with internal pressure.
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