Numerical analysis of the stresses developed during the sliding of a cylinder over compact graphite iron
Numerical analysis of the stresses developed during the sliding of a cylinder over compact graphite iron
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DOI：
10.1016/j.wear.2005.01.014
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发表时间：
2005-07
期刊：
影响因子：
5
通讯作者：
N. K. Fukumasu;P. L. Pelegrino;G. Cueva;R. Souza;A. Sinatora
中科院分区：
文献类型：
--
作者：
N. K. Fukumasu;P. L. Pelegrino;G. Cueva;R. Souza;A. Sinatora
在这项工作中，紧密石墨铁（CGI）的磨损行为进行了研究的基础上，接触应力的有限元分析时，刚性圆柱压头移动在一个单一的通过一个网格代表的CGI的微观结构。在分析中使用的软件ABAQUS和网格生成的OOF模拟包的帮助下，在美国国家标准与技术研究所（NIST）开发的。在模拟中分析的主要参数是圆柱体的直径和施加的载荷。随后将有限元结果与文献中采用致密石墨铁盘的盘上销试验结果进行了比较。当数值和实验分析进行比较时，得到了很好的一致性。这两种方法都表明，接触应力导致在接近盘表面的区域中的显著量的塑性变形。此外，有限元结果允许在铸铁基体中观察应力集中，作为石墨薄片的存在的结果。
In this work, the wear behavior of compact graphite iron (CGI) was studied based on a finite element analysis of the contact stresses developed when a rigid cylindrical indenter was moved in a single pass over a mesh representative of the microstructure of CGI. The software ABAQUS was used in the analysis and meshes were generated with the help of the OOF simulation package, developed at the National Institute of Standards and Technology (NIST). The main parameters analyzed in the simulations were the diameter of the cylinder and the applied load. The finite element results were later compared with literature experimental pin on disc results with compact graphite iron discs. Good agreement was obtained when numerical and experimental analyses were compared. Both methods indicated that the contact stresses result in significant amounts of plastic deformation in regions close to the disc surface. Additionally, the finite element results allowed the observation of stress concentrations in the cast iron matrix, as a result of the presence of graphite flakes.