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Ordinary-state based peridynamic truss element

机译:基于普通状态的白动脉桁架元素

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摘要

This study presents a truss element that accounts for the peridynamic interactions among the finite element nodes. However, these interactions result in a sparsely populated global system stiffness matrix. Therefore, the skyline technique is used in the solution of resulting system of equations until damage initiates; then the explicit time integration to monitor damage progression. The major advantage of this element is the construction of the solution immediately before failure occurs with much less computational effort. In the absence of failure, the predictions from the peridynamic truss element are verified against finite element analysis with traditional elements. Also, a plate with a hole under tension is considered to demonstrate crack initiation and its propagation.
机译:本研究提出了一个桁架元素,其考虑了有限元节点之间的白动力学相互作用。然而,这些相互作用导致稀疏填充的全球系统刚度矩阵。因此,在损伤引发的溶液中使用的天际线技术在得到的等式系统的溶液中使用;然后明确的时间集成来监控损坏进展。该元素的主要优点是在故障发生之前立即构建解决方案,以更少的计算工作。在没有失败的情况下,妨碍逆动脉桁架元素的预测是以传统元素的有限元分析验证。而且,认为具有张力下的孔的板展示裂纹引发及其繁殖。

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