... Abstract Creep strength-enhanced ferritic (CSEF) steels are widely used in fossil power plants operated in many countries and life management for the components made of these materials are of critical importance for plant operators. In particular, failures in welded joints in softened heat...

... and numerical responses was observed. XFEM crack propagation single edge bending ductile fracture damage mechanics failure fracture Proceedings of the ASME 2022 Pressure Vessels & Piping Conference PVP2022 July 17-22, 2022, Las Vegas, Nevada, USA PVP2022-84341 CALIBRATION AND VERIFICATION OF XFEM...

... was 15,000 kPag (2176 Psig). The radiant and convection tubes were fabricated from Type 316Nb stainless steel (UNS31640). There was a tube rupture in the radiant section that caused the fire and the subsequent failure investigation established that the temperature in the radiant section at the rupture...

... Abstract Pressure components are designed to prevent failures; their fabrication has detailed mechanical and manufacturing requirements. However, unforeseen contaminants, installation conditions, residual stresses, field heat treatments, and other unexpected circumstances often determine...

... vibration reduction after the new style snubbers were installed. piping mechanical snubber failure vibration Proceedings of the ASME 2022 Pressure Vessels & Piping Conference PVP2022 July 17-22, 2022, Las Vegas, Nevada, USA PVP2022-85167 PIPING SNUBBER FAILURE EXPERIENCE AND MITIGATION Kenneth L...

... critical elements and tank configurations. buckling damage dynamic and seismic analysis failure nonlinear and inelastic analysis Proceedings of the ASME 2022 Pressure Vessels & Piping Conference PVP2022 July 17-22, 2022, Las Vegas, Nevada, USA PVP2022-84416 SEISMIC VULNERABILITY ASSESSMENT...

... floor acceleration) is not necessarily optimal threfeore future developments should produce updated fragility curves for non-structural elements, using better performing intensity measures. buckling damage dynamic and seismic analysis failure nonlinear and inelastic analysis Proceedings...

... of the qualification program used and how the process is evaluated are covered in the body of the paper together with examples of how the process has worked. pressure vessel qualification validation test manufacturing failure safety reliability Proceedings of the ASME 2022 Pressure Vessels & Piping...

... subjected to torsion and bending load tests. During the curing process the samples were also vacuum bagged to minimise the void content. The respective volume fractions are also identified through ignition loss tests. The load versus deformation and ultimate failure load were recorded. The onset of first...

... they did. In another survey, the authors will show some examples of valves that failed in service and what actions were taken to address the failures. Additionally, the authors will present examples of installed valves that provided long term services and the reasons for their good performance. Finally...

... failure frequency in the United States. The result indicates that the failure frequency of gas pipelines has been reduced with the improvement of safety management. The analysis results show that the gas pipeline accidents occurred in the U.S. from 1986 to 2020 are temporal connected. This is due...

... of the probability of leakage or rupture and, thereby, invalidate the model. Moreover, conservatism at a subsystem level could potentially become non-conservative when implemented at the system or framework level. piping components failure fitness for service Proceedings of the ASME 2021 Pressure Vessels...

... Abstract In the late 1960s and early 1970s, the researchers of the NG-18 committee at the Battelle Institute in Columbus, Ohio completed a seminal study on the failure pressures of flaws in oil and gas pipelines. One of the key developments was the “log-secant” equation for the assessment...

... From the analysis of engineering risks of petrochemical plants in recent years, it is found that the change and instability of the process systems have significant effect on the failure of pressure vessels, and the failure of pressure vessels takes place repeatedly due to the inadequate...

... failures. These results are reported as a decrease in equipment efficiency and significant financial loss. Energy costs represent 80% of operating costs. This paper presents an analysis of risk for furnace B-1201 in the superior limit of design for this equipment, to verify its current load behavior...

... pipe and joints with the furnace tubes, many of them propagated through the pipe walls, and lead to leakage of raw material. In order to explore the failure causes, the microstructure of cracks and corrosion ingredients remained on fracture surface were analyzed by scanning electron microscopy (SEM...

... and dynamic finite element method simulations can be employed with sufficient accuracy to predict the burst pressure of a specific cylindrical shell. Burst pressure cylindrical shell failure FEA Proceedings of PVP2006/ICPVT-11 2006 ASME Pressure Vessels and Piping Division Conference nonlinear...