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Numerical study of balanced patch repairs to cracked sheets

Published online by Cambridge University Press:  04 July 2016

A. Young ,
D. P. Rooke  and
D. J. Cartwright
A. Young
Affiliation:
Materials and Structures Department, Royal Aerospace Establishment, Farnborough
D. P. Rooke
Affiliation:
Materials and Structures Department, Royal Aerospace Establishment, Farnborough
D. J. Cartwright
Affiliation:
Department of Mechanical Engineering, Bucknell University, Lewisburg Pa 17837, USA
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Summary

The effects on the stress intensity factor of bonding repair patches over a crack in a large sheet under uniaxial loading are studied using two simple numerical models. The variation of the stress intensity factor with increasing crack length is investigated and results for repairs involving large elliptical patches are found to agree with a closed-form approximation. Further cases are considered where the patch is either rectangular in shape or less than a certain critical size. For such repairs the closed-form approximation for the stress intensity factor is shown to be unsuitable.

Type
Research Article
Information
The Aeronautical Journal , Volume 93 , Issue 929 , November 1989 , pp. 327 - 334
Copyright
Copyright © Royal Aeronautical Society 1989 

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Footnotes

*

Formerly University of Southampton

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