• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Arabian Journal for Science and Engineering >A New Approach to Modeling the Ductile Cast Iron Microstructure for a Finite Element Analysis
【24h】

A New Approach to Modeling the Ductile Cast Iron Microstructure for a Finite Element Analysis

机译：一种建模用于有限元分析的延性铸铁微观结构的新方法

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this article, a methodology for the generation of geometric models representing the microstructure of a ductile cast iron (DCI) is presented. This methodology is based on a series of image processing algorithms to extract the graphite nodules contours and the utilization of the Bezier curves to smooth the geometric models curves. For the contours obtained by the image processing stage and generated geometric models, the circularity is calculated using the circular shape factor index, in order to analyze the induced error through the discretization process by the image processing stage and the variation of the circularity as the design parameters of the geometric modeling change. On the other hand, the design parameters effect of the geometric models on the stress behavior in the microstructure, through a finite element analysis, is also analyzed. It is shown that as the Bezier curve degree increases, the circularity of the geometric models decreases, thus increasing the maximum stresses produced in the DCI microstructure. Further, it is also found that the number of interpolation points has a significant effect on the mechanical properties when the Bezier curves degrees are equal to 10 and 12 than for the lower degrees.
机译：在本文中，提出了一种代表表示延性铸铁（DCI）的微观结构的几何模型的方法。该方法基于一系列图像处理算法，以提取石墨结节轮廓并利用Bezier曲线来平滑几何模型曲线。对于通过图像处理阶段获得的轮廓和产生的几何模型，使用圆形因子索引来计算圆形度，以便通过图像处理阶段通过离散化过程分析诱导误差和作为设计的圆形度的变化几何建模变化的参数。另一方面，通过有限元分析，还分析了通过有限元分析的微观结构中的几何模型对微观结构中应力行为的设计参数效应。结果表明，随着Bezier曲线的增加，几何模型的圆形度降低，从而增加了DCI微观结构中产生的最大应力。此外，还发现，当贝尔曲线度等于10和12时，内插点的数量对机械性能比为较低度。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号