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The boundary element method for analysing repair patches on cracked finite sheets

Published online by Cambridge University Press:  04 July 2016

A. Young ,
D. J. Cartwright  and
D. P. Rooke
A. Young
Affiliation:
Department of Aeronautics and Astronautics, University of Southampton
D. J. Cartwright
Affiliation:
Department of Mechanical Engineering, Bucknell University, Lewisburg, USA
D. P. Rooke
Affiliation:
Royal Aerospace Establishment, Farnborough
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Summary

The boundary element method is combined with the method of compatible deformations to obtain stress intensity factors for a cracked sheet reinforced with a repair patch. The method is applied to the analysis of a circular patch over a central crack in a rectangular uniaxially stressed sheet. It is shown that the proximity of the edges of the sheet to the patch edge has a negligible effect on the stress intensity factor of a crack completely under the patch.

Type
Research Article
Information
The Aeronautical Journal , Volume 92 , Issue 920 , December 1988 , pp. 416 - 421
Copyright
Copyright © Royal Aeronautical Society 1988 

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References

1. Young, A., Cartwright, D. J. and Rooke, D. P. Influence of tapering on the stress in repair patches. In: Owen, D. R. J. and Luxmore, A. R. (eds). Proc 3rd Int Conf Numerical Methods in Fracture Mechanics, Swansea, 1984, 721–737.Google Scholar
2. Poole, P., Stone, M. H., Sutton, G. R. and Wilson, R. N. The effect of adhesive bonding variables on the performance of bonded CFRP patch repairs of metallic structures. The Repair of Aircraft Structures Involving Composite Materials, 62nd S&M Panel Meeting, AGARD, Oslo, 1986.Google Scholar
3. Jones, R. and Callinan, R. J. Repair of Mirage III aircraft using the BFRP crack-patching technique. Theor Appl Fract Mech, 1984, 2, 1–15.Google Scholar
4. Dowrick, G., Cartwright, D. J. and Rooke, D. P. The effects of repair patches on the stress distribution in a cracked sheet. In: Owen, D. R. J. and Luxmore, A. R. (eds). Proc 2nd Int Conf Numerical Methods in Fracture Mechanics, Swansea, 1980, 763–775.Google Scholar
5. Dowrick, G. Stress intensity factors in patched and orthogonally stiffened sheets. PhD Thesis, University of Southampton, 1987.Google Scholar
6. Young, A., Cartwright, D. J. and Rooke, D. P. Model studies of repair patches. The Mechanics of Fracture, Proc ASM Int Conf Fatigue, Corrosion, Cracking, Fracture Mechanics and Failure Analysis. Salt Lake City, Utah, USA, 1985, 339.Google Scholar
7. Leipholz, H. Theory of Elasticity. Noordhoff, 1974.Google Scholar
8. Brebbia, C. A. and Walker, S. Boundary Element Techniques in Engineering. Newnes-Butterworth, 1980.Google Scholar
9. Erdogan, F. On the stress distribution in plates with collinear cuts under arbitrary loads. Fourth US National Congress on Applied Mechanics, 1962, 547–553.Google Scholar
10. Cruse, T. A. Boundary integral equation fracture mechanics analysis. Proc. ASME Conf, Troy, New York, 1975, 31–46.Google Scholar
11. Rooke, D. P. and Cartwright, D. J. Compendium of Stress Intensity Factors. Her Majesty’s Stationery Office, 1976.Google Scholar