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Journal Articles
Article Type: Technology Review
J. Pressure Vessel Technol. April 2011, 133(2): 024001.
Published Online: February 28, 2011
... in single- and two-phase flows and fretting wear in process equipment, such as heat exchangers and steam generators. Connors critical velocity will be discussed as a measure of initiating fluidelastic instability. Vibro-impact of heat exchanger tubes and the random excitation by the cross-flow can produce...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. December 2010, 132(6): 061202.
Published Online: October 13, 2010
...Avanish Mishra; Amer Hameed; Bryan Lawton An accurate modeling of gun barrel temperature variation over time is important to assess wear and the number of shot fires needed to reach cook-off. Using lumped parameter methods, an internal ballistics code was developed to compute heat transfer...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. October 2010, 132(5): 051302.
Published Online: August 31, 2010
... of this paper appeared at the ASME 2007 PVP Division Conference, PVP2007-26597. 12 06 2009 08 12 2009 31 08 2010 31 08 2010 flow instability heat exchangers pipe flow pipes turbulence vibrations vortices wear Flow-induced vibrations can cause fretting wear damage...
Journal Articles
Article Type: Technology Review
J. Pressure Vessel Technol. June 2010, 132(3): 034001.
Published Online: May 18, 2010
... and fretting wear in process equipment such as heat exchangers and steam generators. Connors critical velocity will be discussed as a measure of initiating fluid-elastic instability. Vibro-impact of heat exchanger tubes and the random excitation by the cross-flow can produce a progressive damage...
Journal Articles
Article Type: Technical Briefs
J. Pressure Vessel Technol. April 2010, 132(2): 024501.
Published Online: January 29, 2010
... stations pipelines pipes wear Most nuclear power plants have inspection programs in place to control flow-accelerated corrosion (FAC). FAC is a well-known phenomenon that has been extensively documented ( 1 ). FAC is a corrosion process caused by the dissolution of the normally protective oxide...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. February 2010, 132(1): 011205.
Published Online: January 4, 2010
... vessels shapes (structures) wear In the autofrettage process, thick-walled cylinders are partially yielded by means of a hydrostatic pressure. This produces a larger strain at the inner surface of the cylinder, compared with the outer surface, and so it begins to yield from the inner bore...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. February 2010, 132(1): 011402.
Published Online: December 9, 2009
... plates (structures) turbines wear welds 29 01 2009 22 09 2009 09 12 2009 09 12 2009 The mesh was a mixture of 8-node bricks and 6-node prisms with 1150 elements in the block for each 100 mm square. The mesh of each filler metal weld pass contained several 8-node brick...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. December 2009, 131(6): 061301.
Published Online: September 23, 2009
... wear processes encountered on the surface of metal pipes. Fluid-structure interactions have a profound influence on such erosion-corrosion phenomena. This paper is focused on the multiphase flow-induced erosion-corrosion phenomena in pipes, with multiscale analysis, to study the interactions between...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. December 2009, 131(6): 061201.
Published Online: September 23, 2009
... as follows: 22 ε eq = ( ε Y 2 − ( ε z ∗ ) 2 ) r c 4 r 4 + ( ε z ∗ ) 2 13 08 2008 20 01 2009 23 09 2009 Bauschinger effect elasticity internal stresses pipes plasticity polynomials steel wear work...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. June 2009, 131(3): 031303.
Published Online: April 6, 2009
...C. Zhang; M. J. Pettigrew; N. W. Mureithi Two-phase cross flow exists in many shell-and-tube heat exchangers. Flow-induced vibration excitation forces can cause tube motion that will result in long-term fretting-wear or fatigue. Detailed vibration excitation force measurements in tube bundles...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. April 2009, 131(2): 021410.
Published Online: January 27, 2009
.... Increasing the pressure while keeping the jet diameter fixed will increase both the power and the power density. This will result in increased cutting speed and less taper. The operating cost of the abrasive waterjets process consists mainly of the costs of abrasives, nozzle wear, utility, and maintenance...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. February 2009, 131(1): 011301.
Published Online: November 10, 2008
...Y. A. Khulief; S. A. Al-Kaabi; S. A. Said; M. Anis Flow-induced vibrations due to crossflow in the shell side of heat exchangers pose a problem of major interest to researchers and practicing engineers. Tube array vibrations may lead to tube failure due to fretting wear and fatigue. Such failures...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. November 2008, 130(4): 041211.
Published Online: October 2, 2008
... with the measured values. 26 09 2006 24 04 2007 02 10 2008 Bauschinger effect compressive strength fatigue finite difference methods internal stresses iterative methods pipes weapons wear The optimal design of gun barrels has two major goals: (a) to increase the strength...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. November 2008, 130(4): 041207.
Published Online: September 10, 2008
...Xinjian Duan; Michael J. Kozluk; Sandra Pagan; Brian Mills Aging steam generator tubes have been experiencing a variety of degradations such as pitting, fretting wear, erosion-corrosion, thinning, cracking, and denting. To assist with steam generator life cycle management, some defect-specific flaw...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. August 2008, 130(3): 031204.
Published Online: June 16, 2008
... with specific defect configurations: elliptical wear-type, tapered wedge-type, and flat wear-type defects. After investigating the effect of key parameters such as defect depth, defect length, and wrap or tapered angle on equivalent stress across the ligament thickness, burst pressure estimation equations...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. August 2008, 130(3): 031203.
Published Online: June 12, 2008
...Y. Hwang; S. Deng The primary cause of gun barrel erosion is the heat generated by the shell as its travels along the barrel. Therefore, calculating the heat flux input to the gun bore is very important when investigating wear problems in the gun barrel and examining its thermomechanical properties...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. August 2008, 130(3): 031201.
Published Online: June 6, 2008
... , respectively, for a spherical vessel of radii ratio of ( b ∕ a ) = 1.7 are plotted in Fig. 1 . Bauschinger effect cracks finite element analysis internal stresses pressure vessels shells (structures) wear Pressure vessels, mostly cylindrical, are widely used in many...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. February 2008, 130(1): 011303.
Published Online: January 17, 2008
...Quamrul H. Mazumder; Siamack A. Shirazi; Brenton McLaury Erosive wear damage of elbows due to solid particle impact has been recognized as a significant problem in several fluid handling industries. Solid particle erosion is a complex phenomenon due to different parameters causing material removal...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. February 2008, 130(1): 011301.
Published Online: January 8, 2008
...C. Zhang; M. J. Pettigrew; N. W. Mureithi Two-phase cross flow exists in many shell-and-tube heat exchangers. Flow-induced vibration excitation forces can cause tube motion that will result in long-term fretting wear or fatigue. Detailed flow and vibration excitation force measurements in tube...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. August 2007, 129(3): 411–419.
Published Online: November 21, 2006
... 19 12 2005 21 11 2006 pressure vessels Bauschinger effect stress-strain relations internal stresses wear autofrettage residual stress spherical pressure vessels Bauschinger effect bilinear material Ramberg–Osgood law Residual stresses are setup on unloading...