Impact of Grid Type on the Stress-Strain of 175F Diesel Engine Piston Structure Calculated by the Finite Element

Abstract:

The finite element modeling is based on the aluminum-silicon alloy piston compression performance test by using both 10-node tetrahedron element and 10-node hexahedron element. After analyzing four grid types, we found that employing both tetrahedron element and hexahedron element can obtain stress-strain nephogram, but with a difference between the four modeling results. In the context of having the same grid size, 10-node hexahedron element reflects a fairly accurate piston stress-strain status than the 10-node tetrahedron element, and among the four schemes, the result calculated by analyzing the locally refined grid that containing both 2mm and 1mm sized 10-node hexahedron grids is the one that matches the experimental value best.

• Periodical: Applied Mechanics and Materials (Volumes 635-637)
• Pages: 584-588
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.635-637.584
• Online since: September 2014
• Authors: Wen Hua Yuan*, Yi Ma, Jun Fu, Yuan Tang, Wei Chen, Zhi Guo Zhu
• Keywords: Finite Element, Grid, Piston, Strain, Stress

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