Mon, 29 July, 2019
NSIRC and Brunel University student, Xu Liu presented his work, ‘Fatigue Performance of Welded Joints under Variable Amplitude Loading Spectra,’ which was completed in collaboration with TWI, at the ASME Pressure Vessels and Piping Conference (PVP), held in San Antonio, Texas, USA on 14-19 July 2019.
Most engineering structures are subjected to variable amplitude (VA) loading in service, while fatigue designs are based on fatigue data obtained under constant amplitude loading. Therefore, in his paper, fatigue tests were performed to study the effect of VA loading spectra on fatigue performance of welded joints. Based on the test results, an analytical model considering the impact of the residual mean stress generated by the preceding load was developed to predict the fatigue crack propagation behaviour and fatigue life of welded joints.
The ASME Pressure Vessels and Piping Conference (PVP) is one of the world’s foremost international conferences and exhibitions for the oil and gas and energy industries. A number of experts presented papers at the conference, along with keynote presentations and technical sessions, amongst other things.
Following his attendance Xu Liu commented, “It has been a great experience attending the PVP conference that provides me with the opportunity to know the latest research work in my field and get valuable feedback from peers and experts.”