Abstract
The stiffness derivative technique is used to compute stress intensity factors. The crack region is modelled by means of a macro element which contains, a priori, a high density of nodes in the vicinity of the crack front and is compatible with standard 20 node elements that it abutts.
Partially supported by USAF Office of Scientific Research Contract No. F44620-76-C-0104.
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References
J. C. Cavendish, W.J. Gordon and C.A. Hall, “Ritz-Galerkin Approximations in Blending Function Spaces,” Number. Math. 26, 155–178 (1976).
J. C. Cavendish, W.J. Gordon and C.A. Hall, “Substructured Macroelements Based on Locally Blended Interpolation,” Int. J. Numer. Mech. Engg. 11, 1405–1421 (1977).
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© 1979 Springer Science+Business Media Dordrecht
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Hall, C. (1979). The Construction of a Macro Element for use in Three Dimensional Fracture Mechanics. In: Sahney, B.N. (eds) Polynomial and Spline Approximation. NATO Advanced Study Institutes Series, vol 49. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-9443-0_4
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DOI: https://doi.org/10.1007/978-94-009-9443-0_4
Publisher Name: Springer, Dordrecht
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