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Special finite elements: Theoretical background and application

机译:特殊有限元:理论背景和应用

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Special finite elements (FEs) are used for modeling of certain phenomena in structural behavior. The term "special" denotes FEs with specific characteristics (stiffness parameters, behavior under load, etc.) and a specific role in modeling, which is their main difference from "common" FEs. There are many types of special FEs, but the following are often used: so-called "nonlinear spring" FE, "gap" FE and "link" FE. Various examples will show many advances in the application of these FEs, especially in modeling of boundary and interface conditions. Theoretical background is given only in the amount necessary for proper understanding of numerical aspects of the application of special FEs.
机译:特殊有限元(FE)用于对结构行为中的某些现象进行建模。术语“特殊”表示具有特定特征(刚度参数,负载下的行为等)并在建模中具有特定作用的有限元,这是它们与“常见”有限元的主要区别。特殊FE的类型很多,但经常使用以下类型:所谓的“非线性弹簧” FE,“间隙” FE和“链接” FE。各种示例将显示这些有限元应用的许多进展,尤其是在边界和界面条件建模方面。仅以适当理解特殊有限元应用的数值方面所需的数量提供理论背景。

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