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首页> 外文会议>International Symposium of Information Technology >K{sub}I Evaluation Using Displacement Extrapolation Technique under Adaptive Dense Mesh with Parallel Finite Element
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K{sub}I Evaluation Using Displacement Extrapolation Technique under Adaptive Dense Mesh with Parallel Finite Element

机译：K {Sub} I使用平行有限元的自适应密度网格下的位移外推技术评估

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摘要

The work of Guinea et al. [1] on the influence of element size, element shape, and element mesh arrangement on numerical values of mode I stress intensity factor, K{sub}I determined by the displacement extrapolation technique (DET) is revisited and extended to some further. In this paper the three different DET configurations are tested along with the generation of very fine adaptive triangular finite element mesh. Since the resulted structural stiffness equation matrix is considerably large, it is solved using parallel processing. The processing procedure follows element-by-element approach using a pre-conjugate gradient solver. In addition, the evaluation is performed to a few more specimens to acquire thorough study on the configurations behaviors. Basically, the behaviors confirm the conclusions obtained by the previous study; nevertheless some unfamiliarities are observed which lead to a different strategy of obtaining the accurate K{sub}I.
机译：几内亚等人的工作。 [1]在元件尺寸，元素形状和元素网布置对模式I应力强度因子的数值上的影响下，再次重新介绍并扩展到由位移外推技术（det）确定的k {sub}。在本文中，三种不同的DET配置以及非常精细自适应三角形有限元啮合测试的产生。由于所得到的结构刚度方程矩阵相当大，因此使用并行处理解决。处理过程使用预缀合物梯度求解器来遵循元素 - 逐个方法。此外，对更多标本进行评估，以获取对配置行为的彻底研究。基本上，行为证实了前一项研究获得的结论;然而，观察到一些陌生性，导致了获得准确k {sub} i的不同策略。

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