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남정환(Jeonghwan Nam),황재석(Jaisug Hawong),신동철(Dongchul Shin),박성한(Sunghan Park) 대한기계학회 2009 대한기계학회 춘추학술대회 Vol.2009 No.11
Rubber o-ring has been used as packing parts in the high pressure vessel, the parts of air plane, the parts of fluid pressure, the atomic planet, the rocket etc,. When metal parts and O-ring are assembled, squeezing forces in the O-ring are produced in the O-ring due to assembling of O-ring and packing parts and the internal pressures applied to O-ring. Therefore the various deformations of O-ring are produced due to the assembling conditions and the internal pressures. The relationships between the deformation behaviors of O-ring and the packing function of O-ring are very important in the packing of O-ring. Therefore in this research, the following topics were studied. The behaviors of O-ring under uniform squeeze rate and internal pressure were studied. The relationships between the deformation behaviors and packing function were studied. The relationships between the deformation behaviors and stress distributions of O-ring were studied.
남정환(Jeonghwan Nam),황재석(Jaisug Hawong),김영탁(Youngtak Kim),박성한(Sunghan Park),신동철(Dongchul Shin) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.11
In this research, stress components and principal stresses of O-ring under internal pressure and under uniform squeeze rate were obtained from the stress freezing method of photoelastic experiment and photoelastic experimental Hybrid method for 3-dimensional problems. The obtaining processes of those were introduced. It was certified that the processes of those are effective for the 3-dimensional stress analysis of structures. Stress freezing method, the obtaining processes of those and photoelastic experimental hybrid method were effectively applied to the stress analysis of O-ring made from rubber that under uniform deformation and internal pressure. Stress components and principal stress of Oring under uniform squeeze rate and under internal pressure were analyzed.