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Analysis of a cracked lug loaded by an interference fit pin

Kumar, Satish K and Dattaguru, B and Ramamurthy, TS (1996) Analysis of a cracked lug loaded by an interference fit pin. In: International Journal of Mechanical Sciences, 38 (8-9). pp. 967-979.

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Official URL: http://dx.doi.org/10.1016/0020-7403(95)00091-7


In the present study, a lug joint fitted with an interference fit (oversized) pin is considered with radial through cracks situated at diametrically opposite points perpendicular to the loading direction. A finite element contact stress algorithm is developed with linear elastic assumptions to deal with varying partial contact/separation at the pin-plate interface using a marching solution. Stress Intensity Factor (SIF) at the crack tips is evaluated using the Modified Crack Closure Integral (MCCI) method. The effect of change in crack length and edge distance on the load-contact relation, SIFs and stress distributions are studied. A rigorous plane stress elasticity solution of the pin-plate interface at the crack mouth confirmed the existence of the stress concentration leading to a local peak in the radial stress at the crack mouth and provided a method of estimating it quantitatively. Copyright (C) 1996 Elsevier Science Ltd.

Item Type: Journal Article
Publication: International Journal of Mechanical Sciences
Publisher: Elsevier science
Additional Information: Copyright of this article belongs to Elsevier science.
Keywords: contact stress;interference fit;stress intensity factor; stress concentration;modified crack closure interval.
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited: 19 Apr 2011 05:28
Last Modified: 19 Apr 2011 05:28
URI: http://eprints.iisc.ac.in/id/eprint/37007

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