Open AccessA Review & Assessment of Current Operating Conditions Allowable Stresses in ASME Section III Subsection NH
Author(s) -
R.W. Swindeman
Publication year - 2009
Language(s) - English
Resource type - Reports
DOI - 10.2172/974283
Subject(s) - section (typography) , consistency (knowledge bases) , current (fluid) , metallurgy , engineering , stress (linguistics) , structural engineering , materials science , mechanical engineering , forensic engineering , mathematics , electrical engineering , computer science , geometry , philosophy , linguistics , operating system
The current operating condition allowable stresses provided in ASME Section III, Subsection NH were reviewed for consistency with the criteria used to establish the stress allowables and with the allowable stresses provided in ASME Section II, Part D. It was found that the S{sub o} values in ASME III-NH were consistent with the S values in ASME IID for the five materials of interest. However, it was found that 0.80 S{sub r} was less than S{sub o} for some temperatures for four of the materials. Only values for alloy 800H appeared to be consistent with the criteria on which S{sub o} values are established. With the intent of undertaking a more detailed evaluation of issues related to the allowable stresses in ASME III-NH, the availabilities of databases for the five materials were reviewed and augmented databases were assembled