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| Moment function formulation of stiffened plates |
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| DOI：10.7511/jslx19991003 |
| KeyWord:stiffened plate,moment function,Hamiltonian system |
| S L Liu |
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| Abstract: |
| 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. |
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