The effect of reinforcing modes on stress concentration of connecting zone of nozzle in pressure vessel was analysed by using the finite element method,the reinforcing effect of reinforcing ring and joint thick pipe was compared,and the stress concentration coefficient was investigated. The results show that the structures with reinforcing ring or joint thick pipe have less stress concentration coefficient than the nozzle without reinforcing structure,and the structure of joint thick pipe is superior to the reinforcing ring for large open hole structure.
reinforcing modepressure vesselnozzlefinite element method
NETL
NSTL
万方数据
维普
