HEAVY-SECTION STEEL TECHNOLOGY PROGRAM SEMIANNUAL PROGRESS REPORT For Period Ending February 29, 1972

摘要

The Heavy-Section Steel Technology (HSST) Program is one of the major USAEC-sponsored efforts concerned with the primary vessels for civilian water-reactor power plants. The main emphasis of the program is on the effects of flaws, material inhomogeneities, and discontinuities on the behavior of the vessels under normal operating and accident conditions. The program is coordinated with efforts by the manufacturing and utility sectors of the nuclear power industry to assess the in-service structural safety of the massive pressure vessels typical of those used in boiling-and pressurized-water reactor systems. Particular emphasis is placed on developing a technology that can be used to establish the margin of safety against failure of the vessels, particularly catastrophic failure beyond the control of plant safety features.