덧살 영향을 고려한 이종마찰용접재의 응력특이성 해석

서지정보

ㆍ발행기관 : 한국기계기술학회 ㆍ수록지정보 : 한국기계기술학회지 / 15권 / 6호
ㆍ저자명 : 박철희, 김은영

목차

Abstract
1. 서론
2. 시편제작
2.1 제작방법
2.2 덧살형상
3. 수치해석
3.1 BEM 응력해석 모델
3.2 해석조건
3.3 접합계면의 응력분포
3.4 응력특이성계수
4. 실험
5. 실험결과 및 고찰
5.1 파단면
5.2 파단강도
6. 결론
후기
References

영어 초록

Friction welding in dissimilar materials is widely applied in various engineering fields such as automobiles, rolling stocks, machine tools. Since interface edges of Friction-welded materials have stress singularity by differences of mechanical properties and temperature changes, it is necessary to assess stress singularity with the variation of flash shape and length. In this paper, the influences which the flashes created by friction welding concern to the stress singularity at interface edges are investigated. Through stress analysis by the BEM and static experiments, the influences were studied quantitatively, the stress singularity greatly depends on the shape of the flash and its size.

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