ASME NTB-2:2019 pdf free download – Background Information for Addressing Adequacy or Optimization of ASME BPVC Section III, Division 5 Rules for Metallic Components
2 RECOMMENDED PRACTICES IN ELEVATED TEMPERATURE DESIGN: A COMPENDIUM OF REACTOR EXPERIENCES (1970–1987), EDITED BY A.K. DHALLA [2]
As indicated by the title, this is a four-volume compendium of experience and lessons learned in the application of elevated structural design methods to sodium cooled fast breeder reactor components. Each volume has multiple individually-authored chapters. In addition to inputs from U.S. authors, there was significant input from Germany, France and Japan. All of the chapters are of general interest, but the main focus is not on the background for the design rules themselves, however, there are a number of chapters that will be highlighted for their influence on design rule development. Note that the chapters are numbered sequentially, chapter numbers in the next volume pick up where the chapter numbers in the preceding volume left off.
2.1 Volume I- Current Status and Future Directions, WRC Bulletin 362, April 1991
The first three chapters are recommended. Chapter 1 provides a short overview of background for the development of elevated temperature design rules. Chapter 2 discusses key features of CC N-47, which eventually evolved to the HBB design rules, and the corresponding features and differences in the high temperature design codes from France and Japan. Table 2-1 of Chapter 2 shows the chronology of the development of CC 1331-4 through CC N-47-17. Chapter 3 is a discussion of the perceived needs and issues for elevated temperature design from the U.S., European and Japanese perspective. (Editorial note: Many, if not most, of these issues have been addressed in subsequent revisions and some are in progress. Many are focused on perceived over-conservatism of the rules at that time. Nonetheless, these inputs will be part of the subsequent gap analysis.)
2.2 Volume II- Preliminary Design and Simplified Methods, WRC Bulletin 363, May 1991
This volume has Chapter 5 and Chapter 6. Of particular note in Chapter 5 is the discussion in Section 5.3 Resolution of Structural Design Problems, which covers both problems encountered in design and also, in some cases, service related failures. Interspersed in Chapter 6 are discussions of testing and analyses to validate design methodologies. Section 6.2.1.3 Validation of Thick Cylinder Simplified Methods includes thermal transient testing of an IHX nozzle mockup. Section 6.2.2.3 Verification of Thin Cylinder Formulation, Harwell Ratcheting Experiment covers axial thermal transients (i.e., fluctuating Sodium level in an axial cylinder). Section 6.3 Inelastic Buckling of Cylinders covers cylindrical buckling test and related analyses. Section 6.5.2 Applications and Verifications describes two creep tests on notched specimens.
2.3 Volume III- Inelastic Analysis, WRC Bulletin 365, July 1991
The four chapters in this volume are primarily oriented to the definition of constitutive models and numerous examples of their application to various geometries and loading conditions, however, Chapter 7, Article 7.1.1 Recommended Method for Inelastic Analysis includes comparisons to test data on 304 SS and 2.25 Cr-1Mo steel under various loading conditions.