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Analysis on Yield Tightening of Threaded Fasteners

Journal Article
2008-01-0545
ISSN: 1946-3979, e-ISSN: 1946-3987
Published April 14, 2008 by SAE International in United States
Analysis on Yield Tightening of Threaded Fasteners
Sector:
Citation: Nassar, S., Yang, X., and Ganeshmuthy, S., "Analysis on Yield Tightening of Threaded Fasteners," SAE Int. J. Mater. Manf. 1(1):249-254, 2009, https://doi.org/10.4271/2008-01-0545.
Language: English

Abstract:

In this paper, an emphasis is put on describing the elastic and plastic deformation behavior of the bolted joint. The bolt material is assumed to be plastic hardening. A nonlinear combined stress model is established for a typical bolted joint for the purpose of studying its behavior under a yield tightening. The combined effect of axial and torsional stresses in the tightened threaded fastener is considered. A new approach for yield tightening under ideal plastic bolt was proposed, and the effects of the thread and bearing frictional coefficients on the clamp load prediction are evaluated. The prediction precision of deformation behavior of the bolted joint under yield tightening for the strain hardening bolt material are studied experimentally.