- Gough-Joule effect
The Gough-Joule effect (aka Gow-Joule effect) is the tendency of
elastomer s to contract when heated if they are under tension. Elastomers that are not under tension do not see this effect.The effect is important in
o-ring seal design, where the seals can be mounted in a peripherally compressed state in hot applications to prolong life. cite book
last =Martini
first =Leonard J.
authorlink =
coauthors =
year =1984
title =Practical Seal Design, P.233
publisher =CRC
location =
id =ISBN 978-0824771669]The effect is relevant to rotary seals which can bind if the seal shrinks due to overheating.
References
External links
* [http://www.pspglobal.com/gland.html O-ring Gland design notes, PSP Inc.]
* [http://www.pslc.ws/macrog/demos/solar.htm A solar power science project using the Gow-Joule effect]
* [http://ammtiac.alionscience.com/pdf/2004MaterialEASE26.pdf explanation]
* http://www.rlhudson.com/O-Ring%20Book/selecting-thermal5.html
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