0
Research Papers: Design and Analysis

Nonlinear Behavior of Preloaded Bolted Joints Under a Cyclic Separating Load

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

Fellow ASME

Zhijun Wu, Aidong Meng

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

J. Pressure Vessel Technol 134(1), 011206 (Dec 02, 2011) (9 pages) doi:10.1115/1.4004614 History: Received January 09, 2010; Accepted July 06, 2011; Revised July 06, 2011; Published December 02, 2011; Online December 02, 2011

The nonlinear plastic deformation behavior of a clamped bolted joint model under a separating service load is investigated using analytical, finite element, and experimental techniques. An elastic-plastic model is used for the bolt material while the joint material remains in the linear elastic range. Both the analytical and finite element analysis (FEA) models investigate the variation in the tension of a preloaded bolt due to a separating service load that acts with an offset from the bolt center. Experimental verification is provided for both the analytical and finite element results on the bolt tension variation, clamp load variation and the clamp load loss caused by the incremental plastic bolt elongation under cyclic separating force.

Copyright © 2012 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 elastic and plastic deformation zones in the cross section of bolt

Grahic Jump Location
Figure 2

Bolted joint schematic

Grahic Jump Location
Figure 3

Experimental Setup

Grahic Jump Location
Figure 4

Nominal bolt tension stress versus bolt axial strain for aluminum alloy fasteners under tightening and separating force

Grahic Jump Location
Figure 5

Nominal bolt tension stress versus bolt axial strain for steel alloy fasteners under tightening and separating force

Grahic Jump Location
Figure 6

Separating force versus the overall tensile displacement responses of aluminum bolt assembly for a bolt preload Fi=18,000 N

Grahic Jump Location
Figure 7

Bolt tension variation due to cyclic separating force Fe for aluminum alloy assembly (Fi=18,000 N, Fe=14,000 − 14,000cos(0.4t) N)

Grahic Jump Location
Figure 8

Bolt tension and clamp load variation for experimental and analytical results of aluminum alloy assembly due to cyclic separating force Fe = 14,000 − 14,000cos(0.4t) N

Grahic Jump Location
Figure 9

Bolt tension variation due to cyclic separating force Fe for steel alloy assembly (Fi=33,600 N, Fe=30,000 − 30,000cos(0.4t) N)

Grahic Jump Location
Figure 10

Bolt tension and clamp load variation for experimental and analytical results of aluminum alloy assembly due to cyclic separating force Fe=30,000 − 30,000cos(0.4t) N

Grahic Jump Location
Figure 11

Effect of the preload level on the clamp load loss due to cyclic separating force for thread friction coefficient μt = 0.09

Grahic Jump Location
Figure 12

Effect of the thread friction coefficient on the clamp load loss due to cyclic separating force for a bolt preload Fi=50,000 N

Grahic Jump Location
Figure 13

Finite element modeling

Grahic Jump Location
Figure 14

Bolt tension and clamp load variation due to cyclic separating force (Fe=14,000 − 14,000cos (0.4t) N, {Fi }  = 18,000N,μt = 0.38 for aluminum alloy bolt)

Grahic Jump Location
Figure 15

Bolt tension and clamp load variation due to a cyclic separating force Fe=30,000 − 30,000cos (0.4t)N, {Fi } = 33,500 N for steel alloy bolt

Grahic Jump Location
Figure 16

Bolt tension variation due to a cyclic separating force Fe=35,000 - 35,000cos (0.4t)N,{Fi},=61,500 for steel alloy bolt

Grahic Jump Location
Figure 17

Separating force versus displacement due to a cyclic separating force Fe=14,000 − 14,000cos (0.4t)N, {Fi } = 18,000 N for aluminum bolt

Grahic Jump Location
Figure 18

Separating force versus displacement due to a cyclic separating force Fe=12,000 − 12,000cos (0.4t)N, {Fi } = 18,000 N for aluminum bolt

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