0
Research Papers: Design and Analysis

Novel Formulation of Bolt Elastic Interaction in Gasketed Joints

[+] Author and Article Information
Sayed A. Nassar, Xianjie Yang

Department of Mechanical Engineering, Fastening and Joining Research Institute, Oakland University, Rochester, MI 48309

J. Pressure Vessel Technol 131(5), 051204 (Jul 28, 2009) (9 pages) doi:10.1115/1.3151814 History: Received November 12, 2007; Revised June 30, 2008; Published July 28, 2009

Novel formulation was proposed for studying bolt elastic interaction during the tightening of a group of fasteners in flat faced gasketed joints. The model was used for developing tightening strategies that would achieve a more uniform clamp load in the flange at initial assembly. Clamp load distribution is investigated for various tightening sequences and values for the gasket modulus of elasticity, gasket thickness, and grip length. An experimental setup and test procedure were developed to verify the numerical results produced by the elastic interaction model. Analytical and experimental results were presented and discussed.

Copyright © 2009 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 1

Schematic of the gasket deformation

Grahic Jump Location
Figure 2

Sequential and star tightening patterns

Grahic Jump Location
Figure 4

Bolt load evolution under multiple-passes star tightening

Grahic Jump Location
Figure 5

Bolt load variations of bolt 1 for sequential tightening under different gasket elastic Young’s moduli

Grahic Jump Location
Figure 6

Bolt load variations of the bolt 1 under star tightening for different gasket Young’s moduli

Grahic Jump Location
Figure 7

Bolt load variations of bolt 1 under sequential tightening for different gasket thicknesses

Grahic Jump Location
Figure 8

Bolt load variations of bolt 1 under star tightening for different gasket thicknesses

Grahic Jump Location
Figure 9

Experimental setup

Grahic Jump Location
Figure 10

Experimental and predicted comparisons for bolt tension variations under sequential tightening with a gasket thickness of 1.2 mm

Grahic Jump Location
Figure 11

Experimental and predicted comparisons for bolt tension variations under star tightening with a gasket thickness of 1.2 mm

Grahic Jump Location
Figure 12

Experimental and predicted comparisons for bolt tension variations under sequential tightening with a gasket thickness of 2.4 mm

Grahic Jump Location
Figure 3

Bolt load evolution under multiple-passes sequential tightening

Grahic Jump Location
Figure 16

Experimental verification of the star tightening approach for uniform final bolt preload

Grahic Jump Location
Figure 17

Experimental bolt tension under the star tightening approach for uniform final bolt preload

Grahic Jump Location
Figure 13

Experimental and predicted comparisons for bolt tension variations under sequential tightening with a gasket thickness of 2.4 mm

Grahic Jump Location
Figure 14

Experimental verification of the sequential tightening approach for uniform final bolt preload

Grahic Jump Location
Figure 15

Experimental bolt tension under the sequential tightening approach for uniform final bolt preload

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In