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Non-uniqueness of thermoelastic contact in load bearing pin joints

Singh, Ripudaman and Ramamurthy, TS and Rao, AK (1992) Non-uniqueness of thermoelastic contact in load bearing pin joints. In: Nuclear Engineering and Design, 135 (3). pp. 315-320.

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The thermoelastic analysis of a load bearing pin joint has an intricate aspect associated to it. The mixed boundary condition of partial contact and separation at the pin-plate interface, in the presence of heat flow and varying bearing load, can lead to mathematical difficulties such as non-existence of solutions and physical ambiguities such as non-uniqueness of contact configurations in certain load ranges. The analysis of these systems, where temperature field and contact areas are mutually interdependent, need special care in handling as the configuration achieved can become dependent on loading history. This aspect in relation to a two-dimensional model consisting of a rigid smooth misfit pin in a large isotropic elastic plate under combined pin bearing load and on-axis unidirectional heat flow is investigated, the key role being played by the thermal expansion of the pin and the step model for thermal conductance at partial pin-plate interfacial contact.

Item Type: Journal Article
Publication: Nuclear Engineering and Design
Publisher: Elsevier Science B.V.
Additional Information: Copyright of this article belongs to Elsevier Science B.V.
Keywords: thermoelastic;bearing pin;isotropic elastic plate
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited: 14 Feb 2008
Last Modified: 19 Sep 2010 04:42
URI: http://eprints.iisc.ac.in/id/eprint/12777

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