Energy Research, Vol. 2, Issue 1, Mar  2018, Pages 24-40; DOI: 10.31058/ 10.31058/

Any Seal under Pressure Shall Have a Poisson's Deformability of 0.5 Ratios—also as a Statement of Local Revisions to The Special Issue of Xu's Sealing and Flowing Theory of Fluids

Energy Research, Vol. 2, Issue 1, Mar  2018, Pages 24-40.

DOI: 10.31058/

Xu Chang-Xiang 1* , Zhang Xiao-Zhong 1

Baoyi Group Co. Ltd., Wenzhou, China

Received: 2 January 2018; Accepted: 23 February 2018; Published: 8 March 2018

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Any sealing ring shall be able to effectively instantly convert a loading pressure on it into its sealing stress orthogonal to the pressure. For example, any self-sealing ring for opposing faces shall be able to exactly instantly convert a fluid pressure on its cylindrical surface into its sealing stress on its end faces. Firstly, what can effectively instantly performs the conversion is either a rigid wedge or a closed liquid; secondly, a common substance, with a Poissons ratio ranging from 0 to 0.5, has both some solid behavior and some liquid behavior, and the substance whose Poissons ratio value more approaches 0.5 more has full liquid behavior and volumes incompressibility and is abler to effectively instantly finish the conversion; thirdly, Poissons ratio is the substances orthogonal strain ratio of its non-loading direction to its loading direction, and compensable; fourthly, a different substance has a different Poissons ratio lagging behind its stress under a different temperature and a different stress; and hence any cavity for sealing rings, no matter how great their Poissons ratio at room temperature is, shall have such a compensating ability to result in the ring therein having a Poisons deformability of 0.5 ratio on being under pressure as to effectively instantly finish the orthogonal conversion of a loading pressure into a sealing stress.


Sealing ring, Poissons ratio, Poissons deformability


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