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Keywords: yield stress
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Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. April 2012, 134(2): 021204.
Published Online: January 13, 2012
... crack-edge stress field analysis fatigue cracks finite element analysis pressure vessels shapes (structures) stress corrosion cracking structural engineering yield stress In a wide range of industries such as power, chemical, food preparation, nuclear, renewable energy, and armament...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. February 2012, 134(1): 011203.
Published Online: December 1, 2011
... and a constant internal pressure and (ii) a cyclic temperature load and a constant axial tension. Individual effects of (i) the geometry of the Weld Metal (WM), (ii) the size of the crack, (iii) the location of the crack, and (iv) the yield stress of WM on the ratchet limits, maximum temperature ranges to avoid...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. December 2011, 133(6): 061208.
Published Online: October 20, 2011
... 5 5 . eigenvalues and eigenfunctions elastic deformation elastic moduli elastoplasticity finite element analysis plastic deformation pressure vessels yield stress plasticity finite element analysis tangent modulus stiffness eigenvalues computational path Plastic...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. June 2011, 133(3): 031206.
Published Online: April 4, 2011
.... Convergence for the upper and lower bound shakedown limits of the composite cylinders is sought and shakedown limit interaction diagrams of the numerical applications identifying the regions of reverse plasticity limit and ratchet limit are presented. The effects of temperature-dependent yield stress...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. June 2011, 133(3): 031401.
Published Online: March 29, 2011
... rate and the temperature, including the temperature rise during dynamic loading. The tensile strength and the yield stress of the undermatched joints increase with the strain rate and with the decreasing temperature. The strength of the undermatched zone approaches that of the base metal when...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. December 2010, 132(6): 061206.
Published Online: October 15, 2010
... and the plane of consideration, is used in evaluating various numerical integrals. The procedure is demonstrated through application to a typical shell nozzle junction. finite element analysis least squares approximations nozzles shells (structures) yield stress stress category least squares fit...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. October 2010, 132(5): 051207.
Published Online: August 31, 2010
... collapse, step by step. In the first sequence, the plastic collapse of the vessel corresponds to the classical limit state of the rigid perfectly plastic behavior. At the end of each sequence, the yield stress and/or back-stresses are updated with or without geometry updating via displacement velocity...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. August 2010, 132(4): 041401.
Published Online: July 23, 2010
... Power Research Institute scheme demonstrated that the ratio of ASTM-CTOD to BS-CTOD was not constant but varied according to CTOD changes. Material factors such as the yield stress, the strain hardening exponent, specimen size and configurations influenced the CTOD ratio, and low strain hardening...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. April 2010, 132(2): 021402.
Published Online: January 29, 2010
... on the measured yield stress. ASME , 2004 , Boiler and Pressure Vessel Code, Document IWA-3300, American Society of Mechanical Engineers, Philadelphia, PA. 2005 , “ Guide on Methods for Assessing the Acceptability of Flaws in Metallic Structures ,” British Standards Institution, BS7910. 2007...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. February 2010, 132(1): 011202.
Published Online: December 7, 2009
... accurate upper bound shakedown limits. This paper presents a recently developed LMM lower bound procedure for shakedown analysis of structures with temperature-dependent yield stress, which is implemented into ABAQUS using the same procedure as for upper bounds. According to the Melan’s theorem ( 1936...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. April 2009, 131(2): 021207.
Published Online: January 13, 2009
... analytical model. In this paper, an autofrettage analytical solution considering Young’s modulus and the reverse yield stress dependent on the prior plasticity, based on the actual tensile-compressive curve of the material and the von Mises yield criterion, has been proposed. New model incorporates...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. November 2008, 130(4): 041205.
Published Online: August 21, 2008
...Vishnu Verma; A. K. Ghosh; G. Behera; Kamal Sharma; R. K. Singh The miniature disk bending test is used to evaluate the mechanical behavior of irradiated materials and their properties (e.g., yield stress and strain hardening exponent) to determine mainly ductility loss in steel due to irradiation...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. February 2008, 130(1): 011208.
Published Online: January 23, 2008
..., and taking 30% of yield stress as the expected residual thermal stress level, the recommended arc radius of heated region should be 2.2 R t in minimum. 13 04 2006 01 12 2006 23 01 2008 heat treatment thermal stresses yield stress spherical vessel local heat treatment thermal...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. February 2007, 129(1): 155–161.
Published Online: May 10, 2006
... stress and true plastic strain were used to describe isotropic hardening. This means that the yield surface size increase uniformly in all directions, such that the yield stress, increases in all directions as plastic straining occurs. No anisotropy was implemented in the constitutive model. The analysis...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. May 2006, 128(2): 212–216.
Published Online: November 22, 2005
... Bauschinger effect pipes wear work hardening internal stresses yield stress autofrettage residual stress distribution Bauschinger effect yield criterion The autofrettage process is a practical method for increasing the elastic-carrying capacity and the fatigue life of a thick-walled tube...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. November 2005, 127(4): 464–470.
Published Online: October 31, 2005
... arrays of three-dimensional unequal-depth cracks at their inner surface. This favorable effect is governed by the ratio of the gun’s material yield stress to its internal pressure— ψ = σ 0 / p . The higher ψ is, the more effective autofrettage becomes. Curve B — K Nmax for the varying...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. November 2004, 126(4): 518–522.
Published Online: December 1, 2004
... 01 12 2004 pressure vessels bending torsion internal stresses yield stress finite element analysis The study concerns the effect of D/T ratio on load interaction in plain pipes. This study is an extension of another study, Ayob 1 , which presented interaction results of a pipe...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Pressure Vessel Technol. May 2004, 126(2): 169–178.
Published Online: May 5, 2004
... of Hill’s (1950) criterion to describe the yield surface of the equivalent solid plate was observed by Reinhardt (2001). Unlike in the case of triangular penetration pattern, the second-order polynomial satisfies the uniqueness of yield stresses after symmetric rotation in the case of square penetration...