在两部分系列文章中,分析了外力作用下圆环体的承载力,这作为经典Levy-Timoshenko方法假设的出发点。该方法也是大多数圆柱壳体的设计准则。本文提出了一个这类问题的更加完善的方程式。该方程式结合各种几何缺陷效应,可以准确地分析塑性性能。先提出一个严格的非线性方程,后建立一个代数表达式,从而避免数值解求解过程。 In the two-part series, the bearing capacity of a circular body under external forces is analyzed as a starting point for the assumption of the classical Levy-Timoshenko method. This method is also the design guideline for most cylindrical shells. This paper presents a more complete equation for such problems. This equation combines various geometric defect effects to accurately analyze plastic properties. First proposed a rigorous nonlinear equations, after the establishment of an algebraic expression, thus avoiding the numerical solution process.