... accurate. Crucial near-bore hoop and axial stresses can be replicated within 1%. Near-bore behavior is discussed in detail. These formulations will permit subsequent determination of stress intensity factors (SIF) for arbitrarily orientated cracks within pressure vessels in the presence of pre-existing...

...G. E. Otto Widera pressure vessels vibrations I extend my very best wishes to you for good health and happiness in 2012. We look forward to presenting three special topic issues this year. The April 2012 issue will feature papers on ASME Codes and Standards. Papers from the 2011 Gun Tube...

...Charles Becht, IV; Charles Becht, V A number of alloys have applications slightly into the creep range that are in cyclic service, such as process reactors. The 2007 edition of Section VIII, Division 2 (2007, ASME Boiler and Pressure Vessel Code, Section VIII, Division 2, The American Society...

... on the definition in Section III of the ASME Boiler and Pressure Vessel Code can be obtained for in-plane loading. However, for out-of-plane loading, the Flexibility Factors are geometry dependent if the values are based on measured elbow deflections. The difference is associated with the contributions of both...

... achieve a safe and proper design. Third, the dynamic load factor can be obtained by transforming the dynamic load applied on the vessel to an equivalent static load. For a spherical pressure vessel under static pressure P s , the maximum displacement is 8 w max = P s β...

.... In this paper, a recently proposed stress-based probabilistic model is assessed using fatigue data available for the P355NL1 steel (a pressure vessel steel). The referred probabilistic model is a log-Gumbel regression model, able to predict the probabilistic Wöhler field (P–S–N field), taking into account...

...Q. Ma; C. Levy; M. Perl Our previous studies have shown that stress intensity factors (SIFs) are influenced considerably from the presence of the Bauschinger Effect (BE) in thick-walled pressurized cracked cylinders. For some types of pressure vessels, such as gun barrels, working in corrosive...

...Cédric Chauvy; Lionel Coudreuse; Patrick Toussaint During fabrication of Pressure Vessels, steels undergo several heat treatments that aim to confer the required properties on the entire equipment, including welds and base metal. Indeed, the production heat treatment of the base material, which...

...Naoki Miura; Naoki Soneda The fracture toughness master curve shows the relationship between the median of fracture toughness and temperature in the ductile–brittle transition temperature region of ferritic steels such as reactor pressure vessel (RPV) steels. The master curve approach specified...

...D. J. Taylor; T. R. Watkins; C. R. Hubbard; M. R. Hill; W. A. Meith Tantalum refractory liners were explosively clad into cylindrical pressure vessels, some of which had been previously autofrettaged. Using explosive cladding, the refractory liner formed a metallurgical bond with the steel...

...Dieter Beukelmann; Wenfeng Guo; Wieland Holzer; Robert Kauer; Wolfgang Münch; Christoph Reichel; Peter Schöner One of the critical issues for reactor pressure vessel (RPV) structural integrity is related to the pressurized thermal shock (PTS) event. Therefore, within the framework of safety...

... drums to operate a coke drum to maximize their fatigue lives. References 1 ASME, ASME Boiler & Pressure Vessel Code, Section VIII, Division I, Rules for Construction of Pressure Vessels, ASME, New York, 2007 . 2 API 1996 Coke Drum Survey, presented to API Subcommittee on Inspection...

...Zhen Liang; Jiang Nan; Liu Sijia The hydrostatic test of integrated multilayer clamping high pressure vessel is performed from 15.7 MPa to 56.52 MPa (1.8 times of the design pressure). The measured stress values have deviation from the Lamè equation (maximum error 34%). The inner wall stress is low...

...David W. Nicholson; Thomas W. Silvers In finite element analysis of pressure vessels undergoing elastoplastic deformation, low stiffness of the tangent modulus tensor will engender low stiffness in the tangent stiffness matrix, posing a risk of computational difficulties such as poor convergence...

.... Therefore, every effort to augment the knowledge in this topic is welcomed. Within this context, existing variable amplitude data, derived by the authors for a notched low carbon pressure vessel steel (P355NL1) flat plate, is used to assess a local approach to fatigue. A linear damage summation framework...

.... The shielding and amplifying effects are varied with hole geometry form and hole geometry parameters. boundary-elements methods cracks plates (structures) pressure vessels stress analysis hole crack stress intensity factor boundary element crack-tip element displacement discontinuity...

...R. I. Jetter; T.-L. Sham; R. W. Swindeman 23 08 2011 23 08 2011 creep nuclear power stations pressure vessels We are grateful to Dr. Richard N. Wright of the Idaho National Laboratory for the support of this work. We thank Mr. Masanori Ando of the Japan Atomic Energy...

...T. A. Duffey Significant changes were made in design limits for pressurized vessels in the 2007 version of the ASME code (Sec. VIII, Div. 3) and 2008 and 2009 Addenda, and these are now a part of the 2010 code. There is now a local damage-mechanics based strain-exhaustion limit, including the well...

... the tabulated results in ASME Boiler and Pressure Vessel Code, Section VIII, Division 3, to calculate the SIF for internal semi-elliptical cracks in cylinders subjected to internal pressure. These equations can be used to avoid the use of the tabulated solutions, and, as a consequence, an automatic numerical...

...E. Carrera; M. Soave This work explores the possibilities of using functionally graded material (FGM) layers to reduce normal and shear stress gradients due to internal pressure and thermal loadings at the interface of a two-layered wall pressure vessel. The two walls are made of an internal thin...