Study on contact stresses of un-stepped rounded D-ring under uniform squeeze rate and internal pressure by photoelastic experimental hybrid method

Title
Study on contact stresses of un-stepped rounded D-ring under uniform squeeze rate and internal pressure by photoelastic experimental hybrid method
Author(s)
황재석B.R. Mose[B.R. Mose]
Keywords
O-RING; SEAL
Issue Date
201210
Publisher
WILEY-V C H VERLAG GMBH
Citation
MATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK, v.43, no.10, pp.864 - 877
Abstract
The stresses that occur in an un-stepped rounded D-ring loaded with various internal pressures and compressed to a 20% squeeze rate are analyzed using photoelastic experimental hybrid method. The analysis shows that the contact stresses on both the upper and front sides of the D-ring increase as the applied internal pressure increases with the magnitudes of sX and sY being considerably higher than those of tXY. At a pressure of zero and 20% compression, the isochromatic fringe patterns of the un-stepped D-ring are almost symmetrical. However, as the internal pressure applied to the D-ring increases the isochromatic fringe patterns shift and curve smoothly towards the extrusion gap making the upper and front sides to be more stressed than the lower side. At a pressure of 1.96 MPa and above, the contact stresses on the upper side were found to be almost constant along the contact length. By supplying a fillet radius of 2.1 mm at the corners of the un-stepped D-ring the high stresses at the corners were reduced by up to 45%. The results from the study further demonstrated that the un-stepped rounded D-ring with a ratio of r/d = 0.3 to be can be an alternative choice to the O-ring for sealing applications. Interestingly, the pressures that the un-stepped D-ring can withstand before extrusion are higher than those of an O-ring.
URI
http://hdl.handle.net/YU.REPOSITORY/27101http://dx.doi.org/10.1002/mawe.201200989
ISSN
0933-5137
Appears in Collections:
공과대학 > 기계공학부 > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE