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Analysis of Stress Singularities on Interfaces of Friction Welded Dissimilar Materials  

Chung, Nam-Yong (Department of Mechanical Engineering, Soongsil University)
Park, Chul-Hee (Hyundai Technical Institute)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.13, no.2, 2005 , pp. 142-148 More about this Journal
Abstract
In this paper, the stress singularity on interface of friction welded dissimilar materials was investigated by using 2-dimensional elastic boundary element method. It is required that stress distributions and stress singularities on an interface for friction welded dissimilar materials analize to establish strength evaluation. The stress singularity index ($\lambda$) and stress singularity factor ($\Gamma$) were calculated from the results of stress analysis. The stress singularities on variations for shapes and thickness of friction welded flashes were analized and discussed. This paper suggested that the strength evalution by using the stress singularity factors as fracture parameters, considering the stress singularity on an interface edge of friction welded dissimilar materials were very useful.
Keywords
Friction welding; Dissimilar materials; Interface edge; Boundary element method; Stress singularity index; Stress singularity factor; Fracture parameter; Welded flash;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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