엔진용 밸브재 SUH35/SUH3 이종마찰 용접계면에 대한 열응력 특이성 해석
Analysis of Thermal Stress Singularity on Interface of Friction Welded SUH35/SUH3 for Engine Valves
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With increasing use of SUH35/SUH3 dissimilar materials for automotive engine valves, it is required that stress singularities under residual stress on an interface for friction welded dissimilar materials analyzed to establish strength evaluation. The stress singularity index() and stress singularity factor( ) were calculated by using the results of stress analysis considering residual stress and loads. The stress singularities on variations for temperatures and loads acting from outside were analyzed and discussed. This paper suggested that the strength evaluation by using the stress singularity factors as fracture parameters, considering the stress singularity on an interface edge of friction welded dissimilar materials will be useful.
Abstract
With increasing use of SUH35/SUH3 dissimilar materials for automotive engine valves, it is required that stress singularities under residual stress on an interface for friction welded dissimilar materials analyzed to establish strength evaluation. The stress singularity index() and stress singularity factor( ) were calculated by using the results of stress analysis considering residual stress and loads. The stress singularities on variations for temperatures and loads acting from outside were analyzed and discussed. This paper suggested that the strength evaluation by using the stress singularity factors as fracture parameters, considering the stress singularity on an interface edge of friction welded dissimilar materials will be useful.
참고문헌 (13)
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