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응력특이성을 고려한 SUH35/SUH3 마찰용접재의 강도평가
정남용(Nam Yong Chun),박철희(Chul Hee Park),이대영(Dea Young Lee) 한국자동차공학회 2005 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2005 No.11_3
Recently, the cases of using friction welded SUH35/SUH3 tend to increase in the field of automotive engine valves. It is required that stress singularities under residual stress with loads on an interface for friction welded dissimilar materials are analyze to establish strength evaluation method, In this paper, strength evaluation method of friction welded materials was investigated by boundary element method and static tensile testing. An advanced method of quantitative strength evaluation for SUH35/SUH3 friction welded material is to be suggested by establishing fracture criterion by using stress singularity factors.