Knowledge of effective slip strength is essential when a bolted joint is designed to work by friction. Axial load and friction coefficient are uncertain due to surface and bolt conditions. European standards indicate necessary tightening torque, but experimental torque-tension relationship is needed for many cases. Torque and axial load relaxation during time is also a common problem not so investigated. In this work, the friction coefficient and the effective slip strength are experimentally determined on a set of bolted joints operating on different surface conditions: prescriptions by standards demonstrate to be conservative not in all cases.

EXPERIMENTAL DETERMINATION OF THE FRICTION COEFFICIENT IN BOLTED JOINTS WITH DIFFERENT SURFACE CONDITIONS / Collini, Luca; Garziera, Rinaldo; Ferretti, Francesco. - CD-ROM. - (2015). ((Intervento presentato al convegno CILAMCE 2015 – XXXVI Ibero-Latin American Congress on Computational Methods in Engineering tenutosi a Rio de Janeiro nel 22-25 Novembre 2015.

EXPERIMENTAL DETERMINATION OF THE FRICTION COEFFICIENT IN BOLTED JOINTS WITH DIFFERENT SURFACE CONDITIONS

COLLINI, Luca;GARZIERA, Rinaldo;
2015

Abstract

Knowledge of effective slip strength is essential when a bolted joint is designed to work by friction. Axial load and friction coefficient are uncertain due to surface and bolt conditions. European standards indicate necessary tightening torque, but experimental torque-tension relationship is needed for many cases. Torque and axial load relaxation during time is also a common problem not so investigated. In this work, the friction coefficient and the effective slip strength are experimentally determined on a set of bolted joints operating on different surface conditions: prescriptions by standards demonstrate to be conservative not in all cases.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11381/2795774
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