Thermoelastic ratcheting effect in bolted aluminum-to-aluminum connections

Author

Braunovic, M. ; Marjanov, Milutin

Author_Institution

Inst. de Recherche d´´Hydro-Quebec, Varennes, Que., Canada

Volume

11

Issue

1

fYear

1988

fDate

3/1/1988 12:00:00 AM

Firstpage

54

Lastpage

63

Abstract

The effect of thermoelastic ratcheting on the mechanical integrity of bolted aluminum-to-aluminum connections using different mechanical contact devices was studied. Thermoelastic ratcheting was studied under current cycling conditions using currents 800 to 2000 A. The results show that the mechanical integrity of the connections is strongly affected by the joint configuration, which differs according to the mechanical devices used. To explain this finding, a rather simplified model of the processes occurring in the connections is derived and shows very good agreement with the experimental results

Keywords

aluminium; busbars; contact resistance; electric connectors; 800 to 2000 A; bolted Al-Al connections; contact force; contact resistance; current cycling conditions; effect of thermoelastic ratcheting; experimental results; joint configuration; mechanical contact devices; mechanical integrity; simplified model; thermoelastic ratcheting; Aluminum; Conductors; Connectors; Contact resistance; Fasteners; Resistance heating; Steel; Temperature; Thermal stresses; Thermoelasticity;

fLanguage

English

Journal_Title

Components, Hybrids, and Manufacturing Technology, IEEE Transactions on

Publisher

ieee

ISSN

0148-6411

Type

jour

DOI

10.1109/33.2962

Filename

2962