Residual stresses in design, fabrication, assessment and repair. PVP-Volume 327

Residual stresses introduced during fabrication, particularly those induced by welding processes, are often a significant concern in the structural integrity of pressure vessels and piping. They are rarely treated explicitly in design, and unrealistically conservative assumptions regarding their distribution are commonly adopted in flaw assessment practice. In recent years there has been renewed interest in understanding their development and true influence on structural integrity. This has been enabled by increases in computational power and innovations in modeling and measurement. Improvements in the sophistication and accuracy of traditional methods (e.g., sectioning and hole-drilling) have also been observed. Recent progress in the application of these techniques and new insights into the mechanisms of residual stress development are reflected by the various papers in this volume. The subject matter has been categorized as follows: (1) modeling techniques; (2) measurement techniques; (3) structural integrity effects; (4) residual stresses in repair welds; and (5) residual stresses in pressure vessels. Separate abstracts were prepared for most papers in this volume