| 학회 |
한국재료학회 |
| 학술대회 |
2017년 봄 (05/17 ~ 05/19, 목포 현대호텔) |
| 권호 |
23권 1호 |
| 발표분야 |
D. 구조 재료 분과 |
| 제목 |
The effect of grain boundary curvature on the distribution of elastic stress and strain in an anisotropic polycrystalline material under thermal loading. |
| 초록 |
An elastic field distribution analysis has been carried out for a three-dimensional polycrystalline microstructure under thermal loading. The distribution of elastic stress and strain results from both the anisotropy of thermal expansion coefficient and the grain boundary curvature. A digital polycrystalline material based on the isotropic grain growth simulation from Monte Carlo Potts model was introduced and three-dimensional tetrahedral mesh elements were generated on it. Then, hexagonal close packed (HCP) thermal expansion coefficient tensor was assigned to each grain, followed by thermal elastic simulation to investigate the spatial distribution of mechanical fields inside the polycrystal. Furthermore, the tails of the cumulative probability functions were examined to analyze the grain boundary curvatures on the elastic field distribution. |
| 저자 |
이명진, 이석빈
|
| 소속 |
울산과학기술원 |
| 키워드 |
<P>Elastic field distribution; microstructure; FE simulation; grain boundary curvature</P>
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| E-Mail |
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