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논문 기본 정보

자료유형
학술대회자료
저자정보
배준우 (영남대학교) 이춘열 (영남대학교) 채영석 (영남대학교)
저널정보
대한기계학회 대한기계학회 춘추학술대회 대한기계학회 2005년도 추계학술대회 논문집
발행연도
2005.10
수록면
45 - 51 (7page)

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초록· 키워드

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Fretting, which is a special type of wear, is defined as small amplitude relative motion along the contacting interface between two materials. The structural integrity of steam generators in nuclear power plants is very much dependent up on the fretting wear characteristics of Inconel 690 U-tubes. A finite element model that can simulate fretting wear was developed in this study in order to investigate the behavior of the phenomenon quantitatively. Two-dimensional and three-dimensional finite element analyses were adopted to investigate the fretting wear problems. Two-dimensional finite element analyses for elastic contact wear problems were performed to demonstrate the feasibility of the finite element method to the fretting wear problems in consideration of frictional contact. A numerical example which has existing solutions was treated. By introducing a control parameter s, which scaled up the wear constant and scaled down the cycle numbers, the algorithm was shown to greatly reduce the time required for the analysis. In the wear model, the work rate model was adopted. The two-dimensional solutions of the study are in good agreement with the previous results by Stromberg. The actual tube-to-tube fretting wear tests in the steam generator were simulated in the three-dimensional finite element analysis. Normal contact pressures and wear depth along the contact surface were plotted under the different values of wear parameters and a number of cycles.

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Abstract
1. 서론
2. 유한요소해석
3. 결과 및 토의
4. 결론
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UCI(KEPA) : I410-ECN-0101-2010-550-003149126