... code, it is found that the code is conservative when repairing deep corrosion defects. INTRODUCTION The corrosion defects significantly impact the structural integrity of pipelines, representing a crucial factor influencing the safe operation of the pipeline (Zhang et al., 2020). Countermeasures...

... x-ray ct application defect specification computed tomography powder conference software simulation geometry reliability thermal deformation detection verification x-ray ct capability accuracy ABSTRACT 3D X-ray Computed Tomography (CT) has emerged as a powerful non...

... on the welding power source. KEY WORDS: welding defects, MIG/MAG, Dynamically Flexible Arc, high speed welding, high penetration, buried-arc, weld pool control. INTRODUCTION Offshore installations have been in increasing demand, consequently, the improvement of maintenance techniques plays an important role...

...-induced thermography for quality assurance in offshore constructions Tanja Eisele, Hermann Luecken Faculty of Mobility and Technology, UAS Esslingen University Esslingen, Germany ABSTRACT In heavy plates and thick walled tubes, defects can occur near the surface. These defects mostly are located only...

... ABSTRACT Large cast components made of nodular cast iron for wind energy turbines and heavy industry are usually not completely free of local material defects. Nevertheless, only the position, size and type characterize the defects and the reduction in cyclic material behavior and lifetime...

... to an rectangular hollow section (RHS) column member with throughdiaphragms. Both sides of weld termination had through-cracks or surface-cracks. An FE analysis was conducted for the prediction of brittle fractures with a variety of defect types. The applicability of the Weibull stress approach was verified...

... that brittle fracture could occur in the beam-to-RHS column connections with through diaphragms. These fractures most frequently occurred in regions around toes of beam copes or defects at weld tab regions in the beam-to-column joints. Although many experimental researches carried out to avoid brittle fracture...

... ABSTRACT The collision of ice-lighthouse was studied with defect ice sheet model and cohesive element method. The elastic modulus of ice model affected by initial defects was also considered. Firstly, several ice bulk elements labeled as initial defects were deleted from the ice model...

... ABSTRACT Metal-loss corrosion is a major threat to the structural integrity of oil and gas pipelines. Inline inspection (ILI) tools are widely used to record and measure corrosion defects on pipelines. Based on a relatively large set of ILI-reported and field-measured defect data collected...

...-destructive tests as well as destructive sampling are performed throughout the production process. Nonetheless, the reliable detection of near surface defects in production conditions remains challenging as of today. This article gives an overview over the defects' origins and typical geometries as well...

... more complicated and less practical while trying to reduce their relatively low accuracy and poor stability in their burst pressure predictions. The 3D models bring simplicity and accuracy together by employing a new parameter, the volume of the defect, to estimate, accurately, the burst pressure...

... from the hole-like-defects on coated surface. The position was coincident with the depletion of chromium oxide. INTRODUCTION The main component of the residual gas in a vacuum chamber under ultrahigh vacuum (UHV) is hydrogen. The cause is attributed to release of hydrogen contained in the vessel...

... ABSTRACT The low cycle fatigue properties of an X65 steel pipe with artificial defects were evaluated under the assumption of maximum defects based on the defect tolerance criterion of API 1104 for a circumferential welded part. The specimen provided with an artificial defect at the weld root...

... ABSTRACT To study the effect of interaction between colonies of defects on the burst pressure of corroded pipeline, ten experimental cases were designed. Among them, the specimens containing two longitudinal or circumferential aligned defects with different sizes and spacings were fabricated...

... ship longitudinal displacement hull girder defect longitudinal edge steel low temperature strength marine transportation compression initial defect mechanical property stiffened plate stiffener ultimate strength dimension Study on the influence of temperature on the collapse...

... efforts to estimate the remaining strength and assess the failure probability of pressurized pipelines containing multiple active corrosion defects. The deterministic and probabilistic methods are usually adopted in remaining strength estimation and reliability assessment of corroding pipeline. Currently...

... (NDT) methods. Though there exists a number of ways to identify possible defects, some are not straightforward to detect and measure the faults and avoid or minimize the consequences. Parallel with the challenges of the collection of data, which is demanding and time consuming, there exist also diverse...

... ABSTRACT High Frequency-Electric Resistance Welded (HF-ERW) steel pipes are suitable for products with thin wall thickness and high accuracy. However manufacturing high chromium steel is difficult by deterioration of corrosion resistance on weld defects. And so by applying quasi-laminar plasma...

... the welding process. Optical microscopy and a weld bead gauge were further used for metallurgical and mechanical characterizations of the various weld specimens after etching. The analyzed results of thermographic and macrostructural images show full penetration fillet welds in some of the specimens. Defects...

.... 2014). As such, corrosion defects are commonly evaluated using the defect geometry and a plastic collapse-based criterion applying methods such as DNV-RP-F101 (Veritas 2010), while several codes exist to evaluate cracks including BS 7910 (Institution 2013). Recently, a hybrid defect known as Crack...