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Keywords: yield strength
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Journal Articles
Article Type: Technical Briefs
J. Pressure Vessel Technol. October 2020, 142(5): 054505.
Paper No: PVT-20-1028
Published Online: July 7, 2020
... and the data of water intake and strain were recorded at the same time. X52 hydrostatic test yield strength spiral weld crack nozzle repair Since the early 1950s, hydraulic pressure test has been used by pipeline industry to eliminate any defects or leaks [ 1 – 3 ]. Hydraulic burst test...
Journal Articles
Article Type: Technical Briefs
J. Pressure Vessel Technol. December 2010, 132(6): 064503.
Published Online: October 29, 2010
... of a section) from an internal frame of steam turbine serviced for about 250,000 h. Performed research has proven that through the microstructure degradation long-term service contributes to an embrittlement and decrease in yield strength and tensile strength. The heat treatment, however, contributes...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. April 2010, 132(2): 021101.
Published Online: March 31, 2010
... − S A − S S S S = M S Z P S A = M A Z P S P S = P S D o 4 t Nomenclature S y is the nominal yield strength of steel; S u is the nominal ultimate strength of steel; S i...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. February 2010, 132(1): 011403.
Published Online: December 15, 2009
... small scale yielding, this study clearly shows that FAD curves are not influenced by negative biaxial loading at low load (up to 40% of yield strength). It was clearly confirmed that the majority of previously developed analytical FAD curves do not effectively account for notch and plasticity effects...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. August 2009, 131(4): 041408.
Published Online: July 7, 2009
...P. S. Lam; R. L. Sindelar; A. J. Duncan; T. M. Adams A compendium of mechanical properties of carbon and low alloy steels following hydrogen exposure has been assembled from literature sources. The property sets include yield strength, ultimate tensile strength, uniform elongation, reduction...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. August 2009, 131(4): 041405.
Published Online: July 1, 2009
... predicts the hydrogen concentration required to initiate HAC as a function of the applied stress intensity factor and yield strength of the steel. Hydrogen-induced reduction in R was found to dominate HAC in the 4140 steel, while hydrogen-induced reduction in R was combined with an increase in G for HAC...
Journal Articles
Article Type: Design Innovations
J. Pressure Vessel Technol. June 2009, 131(3): 035001.
Published Online: February 11, 2009
.... The proposed design formulas are given in terms of the yield strength of the material and address the fatigue strength at the location of the maximum stress concentration factor. Introduction of these new formulas in a nonmandatory appendix of Section VIII, Division 3 is recommended after committee approval...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. November 2008, 130(4): 041401.
Published Online: August 20, 2008
..., data are needed to guide the selection of materials for structural components. The objective of this study is to characterize the role of yield strength, microstructural orientation, and small concentrations of ferrite on hydrogen-assisted fracture in two austenitic stainless steels: 21Cr–6Ni–9Mn (21-6...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. May 2008, 130(2): 021708.
Published Online: May 13, 2008
..., and their amplitude ranged from 0.3 mm to 1.0 mm . Tension coupon tests were conducted on the intrados, extrados, and virgin materials of the specimens. It was revealed that the extrados material exhibited an increase in yield strength due to work hardening and that the intrados material demonstrated a reduction...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. February 2008, 130(1): 011501.
Published Online: January 23, 2008
... of restraint condition applied during welding, the start and end of the weld for a single bead, and increasing the number of passes. The measured residual stress distributions are normalized by the yield strength of the material and compared with distribution provided in fitness-for-purpose procedures...
Journal Articles
Article Type: Technical Briefs
J. Pressure Vessel Technol. May 2007, 129(2): 323–325.
Published Online: November 28, 2006
... expanding hydraulic expanding leak path tensile strength pushout testing shear load testing tube–to–tube-sheet joints tube–to–tube-sheet welds Poisson effect Poisson constant yield strength High-pressure feedwater circulating in the tubes of closed feedwater heaters may...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. May 2006, 128(2): 190–195.
Published Online: January 9, 2006
... deformation behavior of thick-walled cylinders during both loading and unloading phases. Strain hardening may occur during loading, and reverse yielding may occur during unloading at a yield strength significantly reduced due to the Bauschinger effect. Three different models for the reverse hardening...
Journal Articles
Article Type: Technical Briefs
J. Pressure Vessel Technol. November 2006, 128(4): 667–669.
Published Online: January 8, 2006
...Shyh-Jen Wang The relationship of torque versus angle of rotation stabilizes after only a few cycles so that the alternating stress will become a constant as long as the maximum shear stress is less than the shear yield strength of the material. Using this information in Findley‘s fatigue criterion...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. May 2006, 128(2): 179–184.
Published Online: December 12, 2005
...J. Perry; M. Perl; R. Shneck; S. Haroush The Bauschinger effect (BE) was originally defined as the phenomenon whereby plastic deformation causes a loss of yield strength restraining in the opposite direction. The Bauschinger effect factor (BEF), defined as the ratio of the yield stress on reverse...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. May 2006, 128(2): 223–226.
Published Online: December 7, 2005
...Hamid Jahed; Babak Ahmadi Moghadam; Mojtaba Shambooli Loading, unloading, and reloading behavior of high-strength steel AISI 4340 (with yield strength of 1080 MPa ) has been measured using the round bar specimen and method described in ( Jahad, H., and Ghanbari, G., 2003, ASME J. Pressure Vessel...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. August 2006, 128(3): 318–327.
Published Online: August 8, 2005
... be quantified. Experimental and actual plant data of CGR for alloy 600 in PWR primary water, which are sometimes scattered in CGR- K diagrams, are interpreted with the generalized CGR formulation, emphasizing the effects of temperature, K , yield strength and variations of K with time. It is suggested...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. November 2005, 127(4): 449–456.
Published Online: June 1, 2005
... current code limitations on the wall-thickness mismatch of transition joints for a wide range of strength mismatch. 01 12 2004 01 06 2005 pipes pipelines plastic products yield strength finite element analysis hardening plastic deformation walls Plastic Collapse Plastic...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. November 2005, 127(4): 436–442.
Published Online: June 1, 2005
... 2003 01 06 2005 yield strength pipelines plastic deformation work hardening corrosion fatigue mechanical stability stress-strain relations It is well known that the yield-to-tensile strength ratio, i.e., Y ∕ T , reflects the strain hardening response of materials...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. November 2004, 126(4): 432–437.
Published Online: December 1, 2004
... yield strength are of similar shape and magnitude when normalized appropriately and peak stresses are on the order of the material yield strength. The resultant linear elastic stress intensity factors for these stress distributions have been obtained using the finite element method. It has been shown...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. November 2004, 126(4): 451–454.
Published Online: December 1, 2004
... may be improved by a factor of between 2 and 30, depending upon tube geometry and the ratio of cyclic pressure to yield strength. Repeated overload plus heat soak cycles may also be of benefit in other engineering design scenarios. An additional effect of the proposed re-autofrettage procedure...