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Manifestation of Differential Thermal Expansion in Teflon Guide Bushes/Pads

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Abstract

The design of guide bushes or pads is generally straightforward and can be done using basic mechanical engineering principles. However, the two case studies presented in this paper emphasize the need for the detailed stress analysis to supplement the basic design methodology for the design of Teflon guide bushes / pads located in steel housing, operating at high temperatures (> 100 °C). The two case studies highlight the two diverse manifestations of differential thermal expansion between the Teflon and steel housing; in one case the Teflon guide bush jammed to the central shaft while Teflon pads got loosened from their housing in the other case. The seemingly counter-intuitive observations were understood by numerical analysis, supported by carefully planned experiments. Design solutions to preclude the abnormalities were proposed and numerically analyzed. The main significance of the current work is that it provides certain guidance for designing guide bush/pad made of dissimilar materials.

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References

  1. J. Liu, J. Xiang, W. Qin, Z. Zuo, Effect of temperature increase on the looseness of connecting rod small end bushing. Eng. Fail. Anal. 138, 106195 (2022). https://doi.org/10.1016/j.engfailanal.2022.106195

    Article  CAS  Google Scholar 

  2. J. Xiao, W. Qin, S. Xu, Interference and thickness design of bushing of connecting rod small end for Anti-loosening. Eng. Fail. Anal. 127, 105556 (2021). https://doi.org/10.1016/j.engfailanal.2021.105556

    Article  Google Scholar 

  3. V. Rajan Babu, R. Veerasamy, S. Sudheer Patri, S.C. Ignatius Sundar Raj, S.P. Kumar Krovvidi, S.K. Dash, C. Meikandamurthy, K.K. Rajan, P. Puthiyavinayagam, P. Chellapandi, G. Vaidyanathan, S.C. Chetal, Testing and qualification of control & safety rod and its drive mechanism of Fast breeder reactor. Nucl. Eng. Des. 240, 1728–1738 (2010). https://doi.org/10.1016/j.nucengdes.2010.02.037

    Article  CAS  Google Scholar 

  4. F. John, Harvey theory and design of pressure vessels. (Van Nostrand Reinhold Company, New York, 1985)

    Google Scholar 

  5. Abaqus Documentation-Abaqus analysis user’s Guide, 2017

  6. Product and Properties Handbook: Teflon FEP by DUPONT.

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Acknowledgments

The authors are thankful to Dr. B. Venkatraman, Director, Indira Gandhi Centre for Atomic Research (IGCAR), Kalpakkam, Tamilnadu, India, for their constant motivation and support. His consistent encouragement and supervision kept us enthusiastic and dedicated throughout this work.

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Authors and Affiliations

  1. Department of Atomic Energy, Indira Gandhi Centre for Atomic Research, Kalpakkam, Tamil Nadu, India

    Sudheer Patri, Nihal Kaushal & B. K. Sreedhar

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  1. Sudheer Patri
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  2. Nihal Kaushal
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  3. B. K. Sreedhar
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Correspondence to Sudheer Patri.

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Patri, S., Kaushal, N. & Sreedhar, B.K. Manifestation of Differential Thermal Expansion in Teflon Guide Bushes/Pads. J Fail. Anal. and Preven. 23, 1242–1258 (2023). https://doi.org/10.1007/s11668-023-01676-x

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  • DOI: https://doi.org/10.1007/s11668-023-01676-x

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