Skip to main content
Log in

Symmetrical Representation of Stresses in the Stroh Formalism and its Application to a Dislocation and a Dislocation Dipole in an Anissotropic Elastic Medium

  • Published:
Journal of Elasticity Aims and scope Submit manuscript

Abstract

Symmetrical stress representation in the Stroh formalism for anisotropic elastic bodies is introduced and the range of its applicability is analysed. By making use of this stress representation new formulae for influence functions giving stresses in an infinite anisotropic medium subjected to a straight dislocation and a straight dislocation dipole are derived. The advantage of the new formulae is that they explicitly show the symmetrical structure of these influence functions not referred to previously. Relations of these influence functions to influence functions giving stresses and Airy stress function due to a straight wedge disclination, whose explicit expressions are also introduced, are derived. Application of these results in computation of stresses by the hypersingular and regularized Somigliana stress identities is discussed.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. D.M. Barnett and J. Lothe, Synthesis of the sextic and the integral formalism for dislocations, Greens functions and surface waves in anisotropic elastic solids. Physica Norvegica 7 (1973) 13–19.

    Google Scholar 

  2. E. Becache, J.C. Nedelec and N. Nishimura, Regularization in 3D for anisotropic elastodynamic crack and obstacle problems. Journal of Elasticity 31 (1993) 25–46.

    Article  MATH  MathSciNet  Google Scholar 

  3. M. Bonnet, Regularized direct and indirect symmetric variational BIE formulations for three-dimensional elasticity. Engineering Analysis with Boundary Elements 15 (1995) 93–102.

    Article  Google Scholar 

  4. T.A. Cruse, Numerical solutions in three-dimensional elastostatics. International Journal of Solids and Structures 5 (1969) 1259–1274.

    Article  MATH  Google Scholar 

  5. T. Cruse, Mathematical Foundations of the Boundary-Integral Equation Method in Solid Mechanics, Air Force Office of Scientific Research Technical Report, AFOSR-TR-77-1002 (1977).

  6. J.D. Eshelby, W.T. Read and W. Shockley, Anisotropic elasticity with application to dislocation theory. Acta Metallurgica 1 (1953) 251–259.

    Article  Google Scholar 

  7. M. Gurtin, The linear theory of elasticity, In C. Truesdell (ed.), Mechanics of Solids II, volume VIa/2 of Encyclopedia of Physics. Berlin: Springer Verlag (1972).

    Google Scholar 

  8. U. Heise, Application of the singularity method for the formulation of plane elastostatical boundary value problems as integral equations. Acta Mechanica 31 (1978) 33–69.

    Article  MATH  MathSciNet  Google Scholar 

  9. D.A. Hills, P.A. Kelly, D.N. Dai and A.M. Korsunsky, Solution of Crack Problems. The Distributed Dislocation Technique. Dordrecht: Kluwer Academic Publishers (1996).

    MATH  Google Scholar 

  10. J.P. Hirth and J. Lothe, Theory of Dislocations 2nd Ed. New York: John Wiley and Sons (1982).

    Google Scholar 

  11. K.A. Ingebrigtsen and A. Tonning, Elastic surface waves in crystal. Physical Review 184 (1969) 942–951.

    Article  ADS  Google Scholar 

  12. M.A. Jaswon and G.T. Symm, Integral Equation Methods in Potential Theory and Elastostatics. London: Academic Press (1977).

    MATH  Google Scholar 

  13. S. Krenk, Stress concentration around holes in anisotropic sheets. Applied Mathematical Modelling 3 (1979) 137–142.

    Article  MATH  MathSciNet  Google Scholar 

  14. S.G. Lekhnitskii, Some cases of the elastic equilibrium of a homogeneous cylinder with arbitrary anisotropy. Applied Mathematics and Mechanics (in Russian) 2 (1938) 345–367.

    Google Scholar 

  15. S.G. Lekhnitskii, Theory of Elasticity of an Anisotropic Body (in Russian). Moscow: Gostekhizdat (1950).

    MATH  Google Scholar 

  16. J. Lothe, Dislocations in anisotropic media. In: V.L. Indenbom and J. Lothe (eds), Elastic Strain Fields and Dislocation Mobility. Elsevier Science Publishers (1992) pp. 269–328.

  17. V. Mantič and F. París, On Stroh orthogonality relations: An alternative proof applicable to Lekhnitskii and Eshelby theories of an anisotropic body. Journal of Elasticity 43 (1996) 137–145.

    Article  MATH  Google Scholar 

  18. V. Mantič and F. París, Symmetry properties of the kernels of the hypersingular integral and the corresponding regularized integral in the 2D Somigliana stress identity for isotropic materials. Engineering Analysis with Boundary Elements (in press).

  19. V. Mantič and F. París, Integral kernels in the 2D somigliana displacement and stress identities for anisotropic materials. In: F. Benitez (ed.), Fundamental Solutions in Boundary Elements, Formulation and Integration. IABEM Workshop, University of Serville (1997) pp. 41–60.

  20. F.R.N. Nabarro, Theory of Crystal Dislocations. Oxford: Clarendon Press (1967).

    Google Scholar 

  21. M. Peach and J.S. Koehler, The forces exerted on dislocations and the stress field produced by them. Physical Review 80 (1950) 436–439.

    Article  MATH  MathSciNet  ADS  Google Scholar 

  22. S. Sirtori, G. Maier, G. Novati and S. Miccoli, A Galerkin symmetric boundary-element method in elasticity: formulation and implementation. International Journal for Numerical Methods in Engineering 35 (1992) 255–282.

    Article  MATH  MathSciNet  ADS  Google Scholar 

  23. J.W. Steeds, Introduction to Anisotropic Elasticity Theory of Dislocations. Oxford: Clarendon Press (1973).

    MATH  Google Scholar 

  24. J.W. Steeds and J.R. Willis, Dislocations in anisotropic media. In: F.R.N. Nabarro (ed.), Dislocations in Solids, Vol. 1. Amsterdam: North-Holland Publishing Company (1979) pp. 145–165.

    Google Scholar 

  25. A.N. Stroh, Dislocations and cracks in anisotropic elasticity. Philosophical Magazine 7 (1958) 625–646.

    Article  MathSciNet  ADS  Google Scholar 

  26. A.N. Stroh, Steady state problems in anisotropic elasticity. Journal of Mathematical Physics 41 (1962) 77–103.

    MATH  MathSciNet  Google Scholar 

  27. Z. Suo, Singularities, interfaces and cracks in dissimilar anisotropic media. Proceedings of the Royal Society London A 427 (1990) 331–358.

    Article  MATH  MathSciNet  ADS  Google Scholar 

  28. L.J. Teutonico, Dislocations in hexagonal crystals. Materials Science and Engineering 6 (1970) 27–47.

    Article  Google Scholar 

  29. T.C.T. Ting, Effects of change of reference coordinates on the stress analyses of anisotropic elastic materials. International Journal of Solids and Structures 18 (1982) 139–152.

    Article  MATH  MathSciNet  Google Scholar 

  30. T.C.T. Ting, Anisotropic Elasticity: Theory and Applications. New York: Oxford University Press (1996).

    MATH  Google Scholar 

  31. T.C.T. Ting, Existence of an extraordinary degenerate matrix N for anisotropic elastic materials. Quarterly Journal of Mechanics and Applied Mathematics 49 (1996) 405–417.

    Article  MATH  MathSciNet  Google Scholar 

  32. T.C.T. Ting and C. Hwu, Sextic formalism in anisotropic elasticity for almost non-semisimple matrix N. International Journal of Solids and Structures 24 (1988) 65–76.

    Article  MATH  Google Scholar 

  33. K.C. Wu, Y.T. Chiu and Z.H. Hwu, A new boundary integral equation formulation for linear elastic solids. ASME Journal of Applied Mechanics 59 (1992) 344–348.

    Article  MATH  MathSciNet  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Mantič, V., París, F. Symmetrical Representation of Stresses in the Stroh Formalism and its Application to a Dislocation and a Dislocation Dipole in an Anissotropic Elastic Medium. Journal of Elasticity 47, 101–120 (1997). https://doi.org/10.1023/A:1007400325896

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1023/A:1007400325896

Navigation