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Continuing and Changing Priorities of the ASME Boiler & Pressure Vessel Codes and Standards

K.R. Rao
K.R. Rao
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ASME Press
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This chapter: (1) identifies the structural integrity issues in the ASME Boiler & Pressure Vessel Code, including Section II, Section III, Subsection NH (Class 1 Components in Elevated Temperature Service), Section VIII, and Code Cases that must be resolved to support licensing of Generation IV (Gen IV) nuclear reactors, if for very high temperature gas-cooled reactors; and (2) describes how the Code addresses these issues; and (3) identifies the needs for additional criteria to cover unresolved structural integrity concerns for very high temperature service.

17.1 Background
17.2 Summary
17.3 Structural Integrity Evaluation Approach
17.4 Structural Integrity Evaluation Methods
17.5 Regulatory Issues
17.6 Current Regulatory Issues for Structural Design of VHTR and GEN IV Systems
17.7 How Structural Integrity Issues Are Addressed by Current ASME Code? Including Code Cases and Section III, Subsection NH, “Class 1 Components in Elevated Temperature Service”
17.8 Material Models Design Criteria and Analysis Methods Needed in the ASME Code for Very High-Temperature Service
17.9 Recent Material Data Compilations
17.10 Perspective on Next Generation Nuclear Plants
17.11 References
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