A numerical method is given for the solution of frictionless counterformal contact stress problems. By modifying the previously described simply-discretized method, and by introducing an automatic mesh generating procedure for the changing contact region, it has been possible to make major improvements in the generality, stability, accuracy, and efficiency of the numerical procedures. The method has been verified by comparison with known solutions for the Hertzian case. Numerical examples for non-Hertzian cases include the first known solution for non-Hertzian contact of a railroad wheel and rail. The mesh generation and boundary iteration procedure introcuded is applicable to a wider class of problems with changing boundaries, such as determination of wheel-rail adhesion-slip boundary, determination of elastic-plastic interfaces for residual stress problems etc. (Peters)
An improved numerical method for counterformal contact stress problems
Eine verbesserte numerische Methode fuer das rechenformelle Problem der Kontaktbelastung
US Government Reports ; Jul ; 1-66
1977
66 Seiten
Report
English
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