Mechanical properties of a graphite gasket sealing interface

JIA Xiaohong; CHEN Huaming; LI Xinggen; WANG Yuming

doi:10.16511/j.cnki.qhdxxb.2016.22.005

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Journal of Tsinghua University(Science and Technology) ›› 2016, Vol. 56 ›› Issue (2) : 167-170. DOI: 10.16511/j.cnki.qhdxxb.2016.22.005

MECHANICAL ENGINEERING

Mechanical properties of a graphite gasket sealing interface

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Abstract

Graphite gaskets are widely used static seals. This study examines the mechanical properties on the seal interface which is significant to the sealing performance. The study uses finite element simulations based on a test rig structure and elastic-plastic material properties. The compression-resilience curve is measured in the same test rig. The simulations show the changes in the contact pressure and deformation distribution during loading and unloading. The simulated compression-resilience curves agree with the measured data to validate the finite element model. The results explain the sealing mechanism of high contact stiffness, load stability, and installation repeatability for this kind of gasket.

Key words

flexible graphite composite gasket / graphite gasket / sealing interface / finite element simulation / elastic-plastic

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JIA Xiaohong, CHEN Huaming, LI Xinggen, WANG Yuming. Mechanical properties of a graphite gasket sealing interface[J]. Journal of Tsinghua University(Science and Technology). 2016, 56(2): 167-170 https://doi.org/10.16511/j.cnki.qhdxxb.2016.22.005

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