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압축 및 내압을 받는 고무 오링의 거동 특성에 관한 연구

A Study on the Mechanical Characteristic of Elastomeric O-ring Compressed and Highly Pressurized

Journal of the Korean Society for Precision Engineering 2019;36(8):721-728.
Published online: August 1, 2019

1 ㈜한화 종합연구소

1 Defense R&D Center, Hanwha Co., Ltd.

#E-mail: firstko77@hanwha.com, TEL: +82-042-336-0348
• Received: February 20, 2019   • Revised: April 24, 2019   • Accepted: May 20, 2019

Copyright © The Korean Society for Precision Engineering

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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  • Structural Analysis and Experimental Study on the Spherical Seal of a Subsea Connector Based on a Non-Standard O-Ring Seal
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A Study on the Mechanical Characteristic of Elastomeric O-ring Compressed and Highly Pressurized
J. Korean Soc. Precis. Eng.. 2019;36(8):721-728.   Published online August 1, 2019
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A Study on the Mechanical Characteristic of Elastomeric O-ring Compressed and Highly Pressurized
J. Korean Soc. Precis. Eng.. 2019;36(8):721-728.   Published online August 1, 2019
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A Study on the Mechanical Characteristic of Elastomeric O-ring Compressed and Highly Pressurized
Image Image Image Image Image Image Image Image Image Image Image Image Image Image
Fig. 1 O-ring part of solid rocket motor11 (Adapted from Ref. 11 on the basis of open access)
Fig. 2 Operating principle of O-ring3 (Adapted from Ref. 3 on the basis of open access)
Fig. 3 2D axisymmetric model of O-ring for FEM
Fig. 4 Time curve of the analysis
Fig. 5 Results of interference fit
Fig. 6 Results of curve-fitting for NBR3 (Adapted from Ref. 3 on the basis of open access)
Fig. 7 Results of curve-fitting for relaxation modulus5 (Adapted from Ref. 5 on the basis of open access)
Fig. 8 FEM results comparison with analytical model
Fig. 9 Contact stress for install, compressed, pressurized stage
Fig. 10 Max. principal strain as fric. coef. changes
Fig. 11 Max. principal strain for install, compressed, pressurized
Fig. 12 Contact stress as extrusion gap changes
Fig. 13 Sealing performance for install, compressed, pressurized
Fig. 14 Contact stress change with/without stress relaxation
A Study on the Mechanical Characteristic of Elastomeric O-ring Compressed and Highly Pressurized

Ogden strain energy function of NBR

I Mu_I ALPHA_I D_I
1 -323 1.14 0
2 163.5 1.41 0
3 161.8 0.86 0

Material constant for relaxation modulus

j α j τ j
1 0.176 0.0193
2 0.499 9339.7
Table 1 Ogden strain energy function of NBR
Table 2 Material constant for relaxation modulus