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Keywords: flanges
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Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. February 2012, 134(1): 011211.
Published Online: December 7, 2011
...Z. G. Sun; B. Q. Gu The leakage rates of bolted flanged connections change with service time due to the gasket contact stress relaxation and degradation of gasket material. The nonuniform distribution of gasket contact stress has significant influence on the leakage behavior of the connections...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. February 2012, 134(1): 011207.
Published Online: December 2, 2011
...Natalia Petrova; Abdel-Hakim Bouzid Despite the fact that multipass shell-and-tube heat exchangers operating at high temperature are subject to frequent problems related to flange sealing, there is neither detailed explanations for the reasons of the failures nor an adequate solution...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. August 2011, 133(4): 041205.
Published Online: May 16, 2011
...Tan Dan Do; Abdel-Hakim Bouzid; Thien-My Dao Bolted flange joints are part of pressure vessel and piping components and are extensively used in the chemical, petrochemical, and nuclear power industries. They are simple structures and offer the possibility of disassembly, which makes them attractive...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. August 2011, 133(4): 041202.
Published Online: May 9, 2011
... the contact surfaces of the flanges. The metamodel is composed of four parameters, which are enough to simulate the response of the flange under the tightening loads of the bolts. Even though the behavior of the joint is nonlinear because of the gap, the parameters are obtained from two simple linear elastic...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. April 2011, 133(2): 021203.
Published Online: February 10, 2011
...Abdel-Hakim Bouzid; Hichem Galai The poor leakage performance of flanges with full face gaskets is attributed to the low reliability of the existing design methods, and in particular, their lack of assessing accurately the bolt and gasket load changes. The prediction of tightness of bolted joints...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. December 2010, 132(6): 061207.
Published Online: October 19, 2010
...Hichem Galai; Abdel-Hakim Bouzid Design rules for flat face flanges with metal-to-metal contact beyond the bolt circle are covered by Appendix Y of the American Society of Mechanical Engineers Code. These design rules are based on Schneider’s work ( 1968, “Flat Faces Flanges With Metal-to-Metal...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. October 2009, 131(5): 051204.
Published Online: July 28, 2009
...Sayed A. Nassar; Xianjie Yang Novel formulation was proposed for studying bolt elastic interaction during the tightening of a group of fasteners in flat faced gasketed joints. The model was used for developing tightening strategies that would achieve a more uniform clamp load in the flange...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. June 2009, 131(3): 031203.
Published Online: April 7, 2009
...Muhammad Abid; David H. Nash Performance of a bolted flange joint is characterized mainly due to its “strength” and “sealing capability.” A number of analytical and experimental studies have been conducted to study these characteristics only under internal pressure loading. A very limited work...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. April 2009, 131(2): 021201.
Published Online: December 9, 2008
...Abdel-Hakim Bouzid Most current flange design methods use an equivalent pressure to treat bolted flange connections subjected to external bending loads. This oversimplified approach together with the lack of a proper assessment of the actual affected tightness make these methods inadequate...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. August 2008, 130(3): 031211.
Published Online: August 7, 2008
...Akli Nechache; Abdel-Hakim Bouzid The leakage tightness behavior of bolted flange joints is compromised due to the high temperature effects and, in particular, when creep of the materials of the different components of the bolted flanged joint takes place. The relaxation of bolted flanged joints...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. August 2008, 130(3): 031403.
Published Online: June 6, 2008
... of emergency core cooling was performed, and the leading leak size was determined. A fracture mechanics based assessment was carried out for extended circumferential flaws in the weld joint between the RPV shell and the flange, as well as for axial flaws in the nozzle corner. These flaw geometries postulated...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. February 2008, 130(1): 011211.
Published Online: January 30, 2008
... the desired level of a steady state residual clamp load in the joint, by taking the gasket creep relaxation into account. 20 07 2006 01 03 2007 30 01 2008 clamps compressive strength creep fasteners flanges gaskets mathematical analysis gasket creep relaxation clamp load...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. May 2007, 129(2): 248–253.
Published Online: November 10, 2006
...Jaan Taagepera; Trevor G. Seipp Slip blinds are frequently used for hydrotesting piping. In addition, when maintaining equipment or piping, the equipment or piping must be isolated to ensure a safe working environment. Separating flange pairs and inserting a blind flange against the process side...
Journal Articles
Publisher: ASME
Article Type: Design Innovation Paper
J. Pressure Vessel Technol. May 2007, 129(2): 334–337.
Published Online: May 1, 2006
...William J. Koves This paper uses an analytical model based on the Pressure Vessel Research Council (PVRC) ROTT test gasket constants to compute leakage in gasketed flange joints subjected to internal pressure and external bending moments. The model results are compared to test data, and design...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. February 2006, 128(1): 103–108.
Published Online: October 21, 2005
...Toshiyuki Sawa; Satoshi Nagata; Hirokazu Tsuji This paper deals with some studies carried out in the bolted flanged connection committee (BFC) in Japan Pressure Vessel Council (JPVRC) on the stress analysis of a pipe flange connection using the elastoplastic finite element method...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. August 2006, 128(3): 394–401.
Published Online: July 30, 2005
... length, and level of the fastener preload. The joint is composed of two steel flanges and a gasket made of styrene butadiene rubber or flexible graphite. The flanges are fastened together using M12x1.75 Class 10.9 fasteners. Force washers are used to monitor bolt tensions in real time. Four different...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. November 2005, 127(4): 408–413.
Published Online: June 12, 2005
... of the Banjo flange with arbitrary distribution parameters on the condition of known first four moments of original random variables. The theoretical formulas of robust reliability design for the Banjo flange with arbitrary distribution parameters are obtained. The respective program can be used to obtain...