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Keywords: Thread Friction
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Journal Articles

Effect of Thread and Bearing Friction Coefficients on the Self-Loosening of Preloaded Countersunk-Head Bolts Under Periodic Transverse Excitation

Amro M. Zaki, Sayed A. Nassar, Xianjie Yang
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. July 2010, 132(3): 031601.
https://doi.org/10.1115/1.4001621
Published Online: June 4, 2010
... for thick coated fasteners ( Preload = 24.5   kN ) Figure 14 shows the model prediction of the effect of the thread friction coefficient μ t on the self-loosening behavior for various values of the bearing friction coefficients μ b . For each level...
View Article titled, Effect of Thread and Bearing Friction Coefficients on the Self-Loosening of Preloaded Countersunk-Head Bolts Under Periodic Transverse Excitation
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Topics: Bearings, Excitation, Fasteners, Friction, Thread, Torque
Journal Articles

Effect of Coating Thickness on the Friction Coefficients and Torque-Tension Relationship in Threaded Fasteners

Sayed A. Nassar, Amro M. Zaki
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. April 2009, 131(2): 021301.
https://doi.org/10.1115/1.3085941
Published Online: March 9, 2009
... Up to Plastic Range ,” ASME J. Eng. Ind. 0022-0817 , 98 ( 3 ), pp. 849 – 851 . Nassar , S. A. , El-Khiamy , H. , Barber , G. C. , Zou , Q. , and Sun , T. S. , 2005 , “ An Experimental Study of Bearing and Thread Friction in Fasteners ,” ASME J. Tribol. 0742-4787...
View Article titled, Effect of Coating Thickness on the Friction Coefficients and Torque-Tension Relationship in Threaded Fasteners
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Topics: Bearings, Coating processes, Coatings, Fasteners, Friction, Thread, Torque, Tension
Journal Articles

An Experimental Study of Bearing and Thread Friction in Fasteners

S. A. Nassar, H. El-Khiamy, G. C. Barber, Q. Zou, T. S. Sun
Journal: Journal of Tribology
Publisher: ASME
Article Type: Article
J. Tribol. April 2005, 127(2): 263–272.
https://doi.org/10.1115/1.1843167
Published Online: April 7, 2005
...S. A. Nassar; H. El-Khiamy; G. C. Barber; Q. Zou; T. S. Sun An experimental procedure is proposed for studying the underhead and thread friction in fasteners. The effective bearing friction radius, the underhead friction coefficient, and the thread friction coefficient are experimentally determined...
View Article titled, An Experimental Study of Bearing and <span class="search-highlight">Thread</span> <span class="search-highlight">Friction</span> in Fasteners
Open the PDF for An Experimental Study of Bearing and <span class="search-highlight">Thread</span> <span class="search-highlight">Friction</span> in Fasteners in another window
Topics: Bearings, Fasteners, Friction, Thread, Torque