Fracture mechanics deliberation of lugs |
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Authors: | A. Li D.W. Hoeppner |
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Affiliation: | The Cockburn Centre for Engineering Design, Faculty of Applied Science & Engineering, University of Toronto, Toronto, Canada, M5S 1A4 |
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Abstract: | Mode I stress intensity factors for a symmetrical lug with a through radial crack emanating from the internal boundary were evaluated with finite element techniques. A new geometric configuration was developed which saves a minimum of 60% in computer time over the traditional configuration. The effect of interference fit and slip fit was investigated by comparing the results obtained for two different loading conditions; point force and uniform bearing pressure distribution, of which, pin loading yields the larger stress intensity factor. A means of estimating the residual life is also presented. |
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