The three dimensional elastic-plastic finite element analyses were carried out to investigate the variations of stress concentration in the nozzle-vessel junction of pressure vessels, under various geometrical sizes t...The three dimensional elastic-plastic finite element analyses were carried out to investigate the variations of stress concentration in the nozzle-vessel junction of pressure vessels, under various geometrical sizes t/T and r/R (the rations of nozzle - vessel thickness and radius respectively). The effects of t/T, r/R and the plastic deformation on the axial and hoop stress concentration factors (SCF)was examined systematically. The analysis results provided the bases to understand deeply the varying laws of SCF for nozzle -vessel展开更多
文摘The three dimensional elastic-plastic finite element analyses were carried out to investigate the variations of stress concentration in the nozzle-vessel junction of pressure vessels, under various geometrical sizes t/T and r/R (the rations of nozzle - vessel thickness and radius respectively). The effects of t/T, r/R and the plastic deformation on the axial and hoop stress concentration factors (SCF)was examined systematically. The analysis results provided the bases to understand deeply the varying laws of SCF for nozzle -vessel
