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Meccanica

, Volume 50, Issue 4, pp 1103–1120 | Cite as

Non-local theory solution to a 3-D rectangular crack in an infinite transversely isotropic elastic material

  • Hai-Tao Liu
  • Zhen-Gong Zhou
  • Lin-Zhi Wu
Article

Abstract

The non-local theory solution to a 3-D rectangular crack in an infinite transversely isotropic elastic material is proposed by means of the generalized Almansi’s theorem and the Schmidt method in the present paper. By using the Fourier transform and defining the jumps of displacement across the crack surface as the unknown variables, three pairs of dual integral equations are derived. To solve the dual integral equations, the jumps of displacement across the crack surface are expanded in a series of Jacobi polynomials. Numerical examples are provided to show the effects of the geometric shape of the rectangular crack and the lattice parameter of the material on the stress field near the crack edges. Unlike the classical solution, the present solution is no stress singularity along the rectangular crack edges, i.e. the stress field near the rectangular crack edges is finite. Therefore, we can use the maximum stress as a fracture criterion.

Keywords

Mechanics of solids Non-local theory 3-D rectangular crack The lattice parameter 

Notes

Acknowledgments

The authors are grateful for the financial support by the National Natural Science Foundation of China (11272105).

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Copyright information

© Springer Science+Business Media Dordrecht 2014

Authors and Affiliations

  1. 1.Science and Technology on Advanced Composites in Special Environments LaboratoryHarbin Institute of TechnologyHarbinPeople’s Republic of China
  2. 2.Center for Composite Materials and StructuresHarbin Institute of TechnologyHarbinPeople’s Republic of China

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