0
Research Papers

Nonlinear Deformation Behavior of Clamped Bolted Joints Under a Separating Service Load

[+] Author and Article Information
Sayed A. Nassar, Xianjie Yang, Satya Vijay Teja Gandham, Zhijun Wu

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

J. Pressure Vessel Technol 133(2), 021001 (Feb 09, 2011) (9 pages) doi:10.1115/1.4002674 History: Received July 14, 2008; Revised December 05, 2008; Published February 09, 2011; Online February 09, 2011

The nonlinear deformation behavior of clamped bolted joints under a separating service load is investigated using finite element and experimental techniques. Although the materials for the bolted joint remain in the linear elastic range, the interface contact area between the clamped plates is sensitive to both the magnitude and the location of the separating force. This often causes nonlinear deformation behavior of the bolted joint. This finite element analysis study investigates the variation in the tension of a tightened bolt and the corresponding change in the joint clamp load due to a separating service load that is placed at various distances from the bolt center. The separating force is symmetrically placed at locations (from the bolt center) that are equal to 3–5 times the nominal diameter of the bolt. Experimental verification of the finite element results is provided.

Copyright © 2011 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 1

(a) Bolted joint schematic, (b) experimental setup, and (c) model geometry

Grahic Jump Location
Figure 2

The finite element model of bolted joint fixture under separating force Fe

Grahic Jump Location
Figure 3

CL and BT variation with Fe and 2b for a bolt preload of 15 kN

Grahic Jump Location
Figure 4

CL and BT variation with Fe and 2b for a bolt preload of 24.5 kN

Grahic Jump Location
Figure 5

Effect of frequency on the bolt tension for 2b=60 mm

Grahic Jump Location
Figure 6

The effect of the loading waveform on the bolt tension variation with Fe

Grahic Jump Location
Figure 7

Experimental versus finite element results of the bolt tension under cyclic separating force of 0–30 kN for 2b=36 mm

Grahic Jump Location
Figure 8

Experimental versus finite element results of the bolt tension under cyclic separating force of 0–25 kN for 2b=36 mm

Grahic Jump Location
Figure 9

Experimental versus finite element results of the bolt tension and clamp load under separating force for 2b=36 mm

Grahic Jump Location
Figure 10

Experimental versus finite element results of the bolt tension and clamp load under separating force for 2b=48 mm

Grahic Jump Location
Figure 11

Experimental versus finite element results of the bolt tension and clamp load under separating force for 2b=60 mm

Grahic Jump Location
Figure 12

FEA results for concentric Fe at various bolt preloads

Grahic Jump Location
Figure 13

FEA results on bolt tension versus clamp load during initial tightening and subsequent application of a concentric Fe

Grahic Jump Location
Figure 14

FEA contact stress between the two joint members

Grahic Jump Location
Figure 15

FEA results on contact pressure along the X-direction for various levels of Fe

Grahic Jump Location
Figure 16

FEA results on contact pressure along the Z-direction for various levels of Fe

Grahic Jump Location
Figure 17

Joint gapping along X-direction for various levels of Fe

Grahic Jump Location
Figure 18

Effect of position (2b) of the separating force on the bolt tension and clamp load variation

Grahic Jump Location
Figure 19

FEA results of average edge and surface displacements under tightening and separating force for 2b=60 mm

Grahic Jump Location
Figure 20

FEA Results on the average edge and surface displacements of the joint members under tightening and the separating force for 2b=60 mm

Grahic Jump Location
Figure 21

Effect of Fe location (2b) on the compressive joint deformation based on FEA results

Grahic Jump Location
Figure 22

Bolt tension versus bolt elongation during tightening and separating force

Grahic Jump Location
Figure 23

Proposed analytical model versus FEA prediction of the variation in bolt tension and clamp load

Grahic Jump Location
Figure 24

Proposed analytical model versus FEA prediction of the variation in bolt tension and clamp load for 2b=36 mm

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.

Related Journal Articles
Related eBook Content
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