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Buried Pipelines Subject to Subgouge Deformations
Publisher: American Society of Civil Engineers
Abstract: Engineers often model pipe/soil interaction events based on the concept of subgrade reactions originally proposed by Winkler. Engineering models often utilize beam and nonlinear/plastic spring elements to represent pipelines ...
Effect of Misalignment and Weld Induced Residual Stresses on the Local Buckling Response of Pipelines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The aim of the present study is to develop numerical modeling procedures to simulate and study the effect of girth weld induced residual stresses and geometric imperfections on the behavior ...
Identification of the Cause of Variability of Probability of Failure for Burst Models Recommended by Codes/Standards
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Failure probability of oil and gas pipelines due to external corrosion defects can be estimated using corrosion growth model and the evaluation of remaining strength. Codes/standards have been ...
Probabilistic Transgranular Stress Corrosion Cracking Analysis for Oil and Gas Pipelines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The crack morphology of transgranular stress corrosion cracking (TGSCC) suggests that the mechanism of growth and the condition at which TGSCC occur is different than that of intergranular stress ...
Analysis and Design of Buried Pipelines for Ice Gouging Hazard: A Probabilistic Approach
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In cold environments, marine pipelines may be at risk from ice keels that gouge the seabed. Large quantities of material are displaced and soil deformations beneath a gouge may be substantial. ...