加强板的弯矩函数列式

本文首先谇薄板弯曲问题矩函数的物理意义，据此，将弯矩函数列式推广到具有加强条的薄板弯曲问题，给出了与平面弹性问题完全对应的余能原理。

Moment function formulation of stiffened plates

The physical meaning of moment functions in plate theory is first discussed. Based on this understanding the formulation of plate bending in terms of moment functions is extended to stiffened plates. A corresponding complementary energy theorem is also derived in such a form that it clearly demonstrates the duality analogy with the displacement formulation of a plane elasticity problem. Thus, the method of Hamiltonian operator matrix developed by Zhong may easily be applied to the present case. More importantly, the displacement finite elements constructed for plane elasticity with high performance can directly be employed for solving stiffened plate problems.