A dent is a gross distortion of the pipe cross-section. Dent depth is defined as the maximum reduction in the diameter of the pipe compared to the original diameter. Pipeline dent finite element (FE) simulation and theoretical analysis are conducted in this paper to develop an understanding of the geometric characteristics and strain distribution in the pressurized dented pipe. Based on the res...

Steel structures continuously exposed to offshore marine environments are prone to corrosion. This can be of major economic and perhaps of environmental significance. The risk of these scenarios occurring can be assessed using good quality data, good quality corrosion and pitting models and structural reliability assessment. Recently, improved models for the prediction of longer term corrosion ...

Methods “Papageorgiou” General Hospital is one of the four major hospitals of Thessaloniki, the second largest Greek city of 1.2 million inhabitants. Data was extracted from hospital databases (ICD-10 diagnoses V01-V89 for MT and X60-X84 for SA) from the year 2008 to 2014. Several variables concerning patient demographics, APACHE and SAPS II scores, length of ICU stay (LOS) and outcome were rec...

Oil and gas transmission pipelines are critical items of infrastructure in providing energy sources to regions and countries. Steel pipes are commonly used which can be subject to both internal and external corrosion. This paper presents an advanced nondestructive inspection technique for detection of oil-gas pipeline corrosion defect. The Pulsed Eddy Current (PEC) method has been successfully ...

Non-Destructive testing is useful in rail, pipeline and aerospace industries for maintenance of equipment, such as thickness measurements, corrosion and defect detection in materials. In this work a finite element analysis of an Electromagnetic acoustic transducer is presented. EMAT is an emerging technology that provides a non contact process of testing materials compared to ultrasonic sensors...

Glutaraldehyde (GA) is widely employed as a biocide to control microbiologically influenced corrosion in oil fields and industrial water treatment. It might be corrosive metal. In this study, the effect of glutaraldehyde on behavior X80 pipeline steel was investigated using electrochemical measurement, weight-loss tests scanning electron microscope (SEM). The data show that GA accelerates sampl...

Thermo-mechanical controlled processing (TMCP) is employed to obtain the required level of mechanical properties contemporary high-strength low-alloy (HSLA) steel plates utilized for gas and oil pipeline production. The strength, deformation behavior resistance formation propagation running fractures are mainly determined by its microstructure crystallographic texture. These formed as a result ...