... 02 2022 16 03 2022 die tube expansion plasticity strain hardening reverse yielding Tube expansion is widely used in the manufacturing of equipment for the petrochemical and nuclear industries. This process is used in the fabrication of boilers, steam generators, and heat...

... 12 2020 19 03 2021 pipe forming normalized yield strength data collection the Bauschinger effect strain hardening finite element modeling material parameters The rise in world energy consumption over latest decades has led to an increasing demand for gas transmission...

... a good prediction of the residual stresses and in particular when reverse yielding takes place. An analytical model to predict the residual stresses induced during the expansion process due to the cold strain hardening is developed. The proposed analytical model is based on an elasto-plastic behavior...

... response of a simple cantilever beam in bending and a complex three-dimensional finite element analysis of a nozzle intersection. The results show that the proposed approach gives higher values of plastic load than alternative criteria when the material exhibits strain hardening. It is proposed...