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Analysis of Residual Stress Singularities on Interfaces of Friction Welded SUH35/SUH3  

Chung, Nam-Yong (Department of Mechanical Engineering, Soongsil University)
Park, Chul-Hee (Hyundai Technical Unstitute)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.13, no.5, 2005 , pp. 104-111 More about this Journal
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 $index{\lambda}$ and stress singularities $factor{\Gamma}$ were calculated from using the results of stress analysis to consider residual stress and loads. The stress singularities on variations for shapes and thickness of welded flashes 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.
Keywords
Friction welding; Welded flash; Dissimilar materials; Residual stress; Boundary element method; Stress singularity index; Stress singularity factor;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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