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TECHNICAL PAPERS

An Experimental Study of Self-Loosening of Bolted Joints

[+] Author and Article Information
Yanyao Jiang, Ming Zhang

Mechanical Engineering, University of Nevada, Reno, NV 89557e-mail: yjiang@unr.edu

Tae-Won Park

Department of Precision Mechanics, Jeonju Technical College, Seoul, Korea

Chu-Hwa Lee

Advanced Engineering Center, Ford Motor Company, Dearborn, MI 48121

J. Mech. Des 126(5), 925-931 (Oct 28, 2004) (7 pages) doi:10.1115/1.1767814 History: Received September 01, 2003; Revised January 01, 2004; Online October 28, 2004
Copyright © 2004 by ASME
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References

Figures

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Setup for self-loosening experiment
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Typical two-stage self-loosening process
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Definition of Stage I self-loosening
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Self-loosening curve for Combination I (P0=25 kN)
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Self-loosening curve for Combination I (P0=32 kN)
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Self-loosening curve for Combination I (P0=40 kN)
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Self-loosening curve for Combination II (P0=40 kN)
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Self-loosening curve for Combination III (P0=40 kN)
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Influence of initial clamping force on self-loosening (Combination I)
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Dependence of self-loosening on preload (Combination I)
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Comparison of self-loosening curves for different Combinations (P0=40 kN)
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Load versus displacement hysteresis loops for Combinations I and III at endurance limit
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Experimentally obtained Q-δ responses
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Q-δ hysteresis loops obtained from finite element simulation
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FE Simulation result with different friction coefficient between clamped
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Self-loosening process in linear scale (Combination I)
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Variations of dP/dN and dθ/dN with clamping force (Combination I)

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