A Review of Large-Scale Fracture Experiments Relevant to Pressure Vessel Integrity Under Pressurized Thermal Shock Conditions

Pugh, C. E.

Oak Ridge National Laboratory

关键词: Reactor Vessels;    Fracture Mechanics;    Thermal Shock;    22 General Studies Of Nuclear Reactors;    Pressure Vessels;   

DOI  :  10.2172/777631
RP-ID  :  ORNL/TM-2000/360
RP-ID  :  AC05-96OR22464
RP-ID  :  777631

美国|英语

来源: UNT Digital Library

【 摘 要 】

Numerous large-scale fracture experiments have been performed over the past thirty years to advance fracture mechanics methodologies applicable to thick-wall pressure vessels. This report first identifies major factors important to nuclear reactor pressure vessel (RPV) integrity under pressurized thermal shock (PTS) conditions. It then covers 20 key experiments that have contributed to identifying fracture behavior of RPVs and to validating applicable assessment methodologies. The experiments are categorized according to four types of specimens: (1) cylindrical specimens, (2) pressurized vessels, (3) large plate specimens, and (4) thick beam specimens. These experiments were performed in laboratories in six different countries. This report serves as a summary of those experiments, and provides a guide to references for detailed information.