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girth weld, small punch test, strength, welded joint. 1. Introduction. With the advantages of high efficiency, low consumption, continuous transportation and high degree of automation, the pipeline has been widely used in the oil and gas transportation industry.
20 sie 2013 · The ExxonMobil and CRES procedures are based on a combination of extensive finite element analyses and full-scale testing; parametric equations have been developed to define strain capacity of the pipeline when flaws are present in the girth weld.
This paper is a summary of PRCI-funded work aimed at characterizing material properties and flaw characteristics of vintage girth welds. The data obtained in this work can be utilized to understand and predict the behavior of vintage pipelines, which is covered in a companion paper.
This paper presents a finite element analysis to quantify the effects of weld-induced residual stress and deformation on the compression behavior of girth-welded steel pipes. Finite element modeling of the weld-induced imperfections is first described.
The knowledge of girth weld tensile behaviour is an essential issue to be considered in the definition of a welding procedure for seamless linepipe, subject to in-plane bending, such as during laying applications. In particular, the evaluation of the behaviour in direction transverse to the welding should be carried out, according to DNV standards.
Abstract. The suspected circumferential weld defects found in the pipeline inspection process were tested and studied. It was found that there was slag inclusion in the girth weld at 9 o 'clock, which had not been found in the early stage or in the laboratory nondestructive testing process.
The thermal analysis in cladded girth welded joints has been carried out using 3D finite element analysis in Abaqus. Results of the transient temperature curves have been generated for the different cladding thicknesses (stainless steel and mild steel).
