Based on the von Karman strainexpressions for plates and the method presented by Bergan and clough([l]),theequilibrium and incremental equations for a nonlinear analysis are derived,whichallow the consideration of the effect of the stiffener eccentricity.

• 根据 Von Karman 大挠度板理论以及文献[1]所提出的方法,考虑了加筋偏心的影响,获得了非线性有限元分析所需的平衡方程和增量方程。