根据英国CEGB~*公司提出的极限分析—断裂力学双判据法,本文应用塑性极限分析的下限法原理,计算了一个带有径向接管的圆筒状压力容器在内压作用下的塑性极限载荷。假设压力容器在接管处有一与接管同心的周向等深度裂纹,对于刚性—理想塑性材料,本问题可以归结为一个典型的非线性优化过程求解,其塑性极限载荷是通过Carroll非线性优化程序求出的。 According to the limit analysis - fracture mechanics double criterion proposed by British CEGB * Company, the plastic limit of a cylindrical pressure vessel with radial joint under internal pressure is calculated by the lower bound method of plastic limit analysis Load. Assuming that the pressure vessel has a constant circumferential depth crack concentric with the receiver at the receiver, this problem can be attributed to a typical nonlinear optimization process for rigid-ideal plastic materials. The plastic ultimate load is calculated by the Carroll nonlinear optimization program Out of