| 학회 |
한국재료학회 |
| 학술대회 |
2016년 봄 (05/18 ~ 05/20, 여수 디오션리조트 ) |
| 권호 |
22권 1호 |
| 발표분야 |
D. 구조 재료 분과 |
| 제목 |
Finite element method analysis on a cyclic thermal loading in the three-dimensional polycrystal |
| 초록 |
This paper reports the results of the analysis on the thermal stress distribution in a polycrystalline microstructure under a cyclic thermal loading. First, a three-dimensional polycrystal is generated using the Monte Carlo Potts model in the context of normal grain growth. Then, three-dimensional conformal mesh elements on such a digital microstructure are created using both in-house codes and a commercial package. Finally, a finite element method (ABAQUS) is used on the resultant mesh elements to simulate the mechanical fields inside the polycrystal under a cyclic thermal loading. Interestingly, the curvature of the grain boundary is found to have the influence on the residual stress distribution on the near-grain-boundary regions in conjunction with the grain orientations and grain boundary misorientations. |
| 저자 |
Youngju Jeon, Youngkyun Son, Myeongjin Lee, Sukbin Lee
|
| 소속 |
UNIST(Ulsan National Institute of Science and Technology) |
| 키워드 |
Polycrystal; Local Mechanical Fields; Finite element analysis; Grain Boundary |
| E-Mail |
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