Critical Materials and Fabrication Issues for Pressure Vessels, Piping, Pumps, and Valves

摘要

Through an intensive two-year series of debates, meetings, presentations, and reviews, a total of twelve issues on the materials and fabrication aspects of technical problems in the pressure vessels and piping industry were identified. The twelve issues are: (1) The role of engineering judgment and the computer in the management of material property data; (2) Curve-fitting vs. modeling for formulating design rules; (3) New material property data: Terminal vs. incremental tests; (4) Variability of data: Standards for applications; (5) On-line monitoring of critical components to improve reliability; (6) Upgrading welders' skill and educational level: How and why; (7) Reliability of nondestructive evaluation; (8) Characterization of the subjective component of inservice data; (9) Should there be a methodology for failure analysis; (10) Accelerated development of a more rational basis for nonlinear fracture mechanis; (11) Safety factors in Fatigue Design: Arbitrary or Rational; (12) The ASME Code and product liability: Should compliance create a rebuttable presumption of proper design. This report contains extended abstracts of the twelve issue papers and summaries of reviewers' comments.