The paper studies nonlinear F. E. analysis of stiffened shells, presenting beam element to simulate the stiffeners.
本文研究了加劲壳的非线性有限元分析方法，提出了一种梁元素来模拟加筋。
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A halogen element, f, is major raw materials deriving fluorine compound, and because of low melting point, that is widely used in steelmaking, nonferrous metal smelting, cement, glass and ceramics.
The relations of the vector F-complementarity problems, general vector variational inequalities, and least element problems of feasible set are given under certain conditions.