Full Description

Part 1: Evaluation of Design Margins for Section VIII, Div. 1 and 2 of the ASME Boiler and Pressure Vessel Code: Evaluation of Design Margins for ASME Code Section VIII, Division 1

Improvements to ASME Section VIII, Division 1 Code rules over the last 40-50 years, successful experience with vessels designed to the Code rules, improved materials and fabrication practices, more sophisticated design rules and toughness requirements have prompted a further review of the Section VIII, Division 1 requirements to see if there is a justification for a reduction in the present Code design margins from a factor of 4 to 3.5 on the ultimate tensile strength at temperatures below the creep range.

This report discusses the successful experience with vessels designed to Section VIII, Division 1 rules, the failure modes considered in the Code rules and margins on design, improvements in the Code rules since the last reduction of the design margin, the Code paragraphs affected by changes in the design margins, areas which need a further review, and recommended additional work as a follow-up to this study to further justify the lower design margin.

Part 2: Evaluation of Design Margins for Section VIII, Div. 1 and 2 of the ASME Boiler and Pressure Vessel Code: Evaluation of Design Margins for ASME Code Section VIII, Divisions 1 and 2-Phase 2 Studies

The Phase 2 Report includes the Phase 1 follow-up studies, evaluation of the design margins in ASME Section VIII, Division 2, and a comparison of the Section VIII, Division 1 and Division 2 Code requirements with those in several European pressure vessel codes and standards which use lower design margins than ASME Section VIII. These include the British Standard 5500, the German Pressure Vessel Code (AD-Merkblatt Code), the Netherlands Rules for Pressure Vessels (Stoomwezen Code) and the CEN/TC54 Draft Standard for Unfired Pressure Vessels.

Product Details

Published: 1998 Number of Pages: 95 File Size: 1 file , 8.9 MB