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Application of the method of singular integral equations to elasticity problems with concentrated loads

Die Anwendung der Methode der singulären Integralgleichungen bei Elastizitätsproblemen mit konzentrierten Lasten

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Summary

The method of singular integral equations is a well-known method for solving plane and antiplane elasticity problems and efficient methods for the numerical solution of these equations have been developed. In this paper this method is used for problems where concentrated loads are applied on the boundary of the elastic medium. An application to a straight crack problem in plane isotropic elasticity is also made. Finally, the case of curvilinear crack problems with concentrated loads is considered. The results of this paper can further be applied to more complicated problems with concentrated loads.

Zusammenfassung

Die Methode der singulären Integralgleichungen ist eine sehr bekannte Methode für die Behandlung von ebenen und antiebenen Elastizitäts-problemen und es wurden erfolgreiche Methoden für die numerische Lösung dieser Gleichungen entwickelt. In dieser Arbeit wird die Methode für Probleme angewendet, bei welchen konzentrierte Lasten am Rande des elastischen Mediums aufgebracht werden. Eine Anwendung für ein Problem eines geradlinigen Risses bei ebener, isotroper Elastizität wird gezeigt. Abschließend wird auch der Fall von Problemen mit gekrümmten Rissen bei konzentrierten Lasten behandelt. Die Ergebnisse dieser Arbeit können ferner bei komplizierteren Problemen mit konzentrierten Lasten Anwendung finden.

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References

  1. Erdogan, F., Gupta, G. D., Cook, T. S.: Numerical solution of singular integral equations. In: Methods of analysis and solutions of crack problems (Mechanics of Fracture, Vol. 1) (Sih, G. C., ed.), ch. 7, pp. 368–425. Leyden, The Netherlands: Noordhoff. 1973.

    Google Scholar 

  2. Erdogan, F.: Complex function technique. In: Continuum mechanics of singlesubstance materials (Continuum Physics, Vol. 2) (Eringen, A. C., ed.), Part III, ch. 3, pp. 523–603. New York: Academic Press. 1975.

    Google Scholar 

  3. Erdogan, F.: Mixed boundary-value problems in mechanics. In: Mechanics today (Nemat-Nasser, S., ed.), Vol. 4, ch. I, pp. 1–86. Oxford: Pergamon Press. 1978.

    Google Scholar 

  4. Ioakimidis, N. I.: General methods for the solution of crack problems in the theory of plane elasticity. Doctoral thesis, The National Technical University of Athens, Athens, 1976. [Available from: University Microfilms; order no. 76-21,056.]

    Google Scholar 

  5. Ioakimidis, N. I., Theocaris, P. S.: The numerical evaluation of a class of generalized stress intensity factors by use of the Lobatto-Jacobi numerical integration rule. Int. J. Fracture14, 469–484 (1978).

    Google Scholar 

  6. Karihaloo, B. L.: Spread of plasticity from a stack of cracks under mode I conditions. Int. J. Solids Struct.13, 367–375 (1977).

    Google Scholar 

  7. Theocaris, P. S., Chrysakis, A. C., Ioakimidis, N. I.: Cauchy-type integrals and integral equations with logarithmic singularities. J. Engng. Math.13, 63–74 (1979).

    Google Scholar 

  8. Ioakimidis, N. I.: The numerical solution of crack problems in plane elasticity in the case of loading discontinuities. Engng. Fracture Mech.13, 709–716 (1980).

    Google Scholar 

  9. Arfken, G.: Mathematical methods for physicists, 2nd ed. New York: Academic Press. 1970.

    Google Scholar 

  10. Gakhov, F. D.: Boundary value problems. Oxford: Pergamon Press and Addison-Wesley. 1966.

    Google Scholar 

  11. Tada, H., Paris, P. C., Irwin, G. R.: The stress analysis of cracks handbook. Hellertown, Pennsylvania: Del Research Corporation. 1973.

    Google Scholar 

  12. Muskhelishvili, N. I.: Some basic problems of the mathematical theory of elasticity, 2nd English ed. Groningen, The Netherlands: Noordhoff. 1963.

    Google Scholar 

  13. Ioakimidis, N. I., Theocaris, P. S.: Array of periodic curvilinear cracks in an infinite isotropic medium. Acta Mech.28, 239–254 (1977).

    Google Scholar 

  14. Theocaris, P. S., Ioakimidis, N. I.: Numerical integration methods for the solution of singular integral equations. Quart. Appl. Math.35, 173–183 (1977).

    Google Scholar 

  15. Theocaris, P. S., Ioakimidis, N. I.: A remark on the numerical solution of singular integral equations and the determination of stress-intensity factors. J. Engng. Math.13, 213–222 (1979).

    Google Scholar 

  16. Ioakimidis, N. I., Theocaris, P. S.: A remark on the numerical evaluation of stress intensity factors by the method of singular integral equations. Int. J. Numer. Meth. Engng.14, 1710–1714 (1979).

    Google Scholar 

  17. Ioakimidis, N. I., Theocaris, P. S.: On the numerical evaluation of Cauchy principal value integrals. Rev. Roum. Sci. Techn. Sér. Méc. Appl.22, 803–818 (1977).

    Google Scholar 

  18. Ioakimidis, N. I., Theocaris, P. S.: On a method of numerical solution of a plane elasticity problem. Strojn. Čas.29, 448–456 (1978).

    Google Scholar 

  19. Theocaris, P. S., Ioakimidis, N. I.: The inclusion problem in plane elasticity. Quart. J. Mech. Appl. Math.30, 437–448 (1977).

    Google Scholar 

  20. Ioakimidis, N. I., Theocaris, P. S.: The problem of a simple smooth crack in an infinite anisotropic elastic medium. Int. J. Solids Struct.13, 269–278 (1977).

    Google Scholar 

  21. Ioakimidis, N. I., Theocaris, P. S.: The second fundamental crack problem and the rigid line inclusion problem in plane elasticity. Acta Mech.34, 51–61 (1979).

    Google Scholar 

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Ioakimidis, N.I. Application of the method of singular integral equations to elasticity problems with concentrated loads. Acta Mechanica 40, 159–168 (1981). https://doi.org/10.1007/BF01170428

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