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A numerical investigation of the limit loads is carried out for pressurevessels with part-through slots using a general computational method for the limitanalysis of 3-D structures.The limit pressures are given for a comprehensive range ofgeometric parameters.Some of the calculated results are compared with the results of3-D elastic-plastic finite element analysis and existing numerical solutions.The effectsof various shapes and sizes of part-through slots on the load carrying capacity ofcylindrical shells are investigated and evaluated.Two kinds of typical failure modescorresponding to different dimensions of slots are studied.Based on the numericalresults,a geometric parameter G which combines the slot dimensions and the cylindergeometry is presented.It reasonably reflects the overall effect of slots on the limit loadsof cylinders.An empirical formula for estimating the limit pressures of cylindricalshells with part-through slots is obtained.
A numerical investigation of the limit loads is carried out for pressurevessels with part-through slots using a general computational method for the limitanalysis of 3-D structures. The limits are given for a comprehensive range of quantitative parameters. with the results of 3-D elastic-plastic finite element analysis and existing numerical solutions. The effects of various shapes and sizes of part-through slots on the load carrying capacity ofcylindrical shells are investigated and evaluated. Two kinds of typical failure mode scorresponding to different dimensions of Slots are studied. Based on the numerical results, a geometric parameter G which combines the slot dimensions and the cylinder geometry are is. It reasonably reflects the overall effect of slots on the limit loads of cylinders. An empirical formula for estimating the limit pressures of cylindricalshells with part -through slots is obtained.