Computational Abstractions for Dynamic Nonlinear Analysis of Structures

从总体上看，拟议的工作将涉及 开发、实施和评估一般目标- 用于非线性动力结构有限元的面向框架 元素分析 这个框架将由一组类组成 的对象建模节点，元素，自由度， 材料等。鉴于周围的特殊问题， 非线性动力分析，类将设计与 考虑到以下目标：允许算法的灵活性 选择，实施和分配;适合 并行实现;并在一个 交互式环境， 修改和可视化。 为了实现这些目标， 将使用关键组件：无坐标几何，迭代 解方程组的技术;和一个元素， 元素执行策略。//

From a general point of view, the proposed work will involve the development, implementation and evaluation of a general object- oriented framework for use in nonlinear dynamic structural finite element analysis. This framework will consist of sets of classes of objects modeling nodes, elements, degrees-of-freedom, materials and so on. In light of the special issues surrounding nonlinear dynamic analysis, the classes will be designed with the following goals in mind: to allow flexibility in algorithm selection, implementation, and distribution; to be well-suited for parallel implementation; and to function well in an interactive environment with respect to model development, modification and visualization. To achieve these goals, several key components will be used: coordinate-free geometry, iterative techniques for solving systems of equations; and an element-by- element implementation strategy.//