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Autofrettage Analysis of Pipe Bend using Finite Element Method
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유한요소법을 이용한 곡관의 자긴가공 해석

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Autofrettage Analysis of Pipe Bend using Finite Element Method
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Autofrettage analysis of a bend in the fuel injcetion pipe has been performed to investigate the distribution of residual stresses due to pipe bending and autofrettage processes. The pipe bending was simulated by metal forming analysis using finite element method, and residual stress distribution after bending was found. Autofrettage following the pipe bending was performed by applying the hydrostatic internal pressures of 603 ㎫, 535 ㎫, 500 ㎫ on the pipe bend, corresponding to theoretical 26 %, 14 %, 9 % overstrain levels, respectively. Residual stress distributions due to bending and autofrettage were evaluated.

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Abstract
1. 서론
2. 유한요소해석
3. 유한요소해석 결과
4. 고찰
5. 결론
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