Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Critical experiments, measurements and analyses to establish a crack arrest methodology for nuclear pressure vessel steels. Quarterly report, April--June 1978

Technical Report ·
OSTI ID:6322724
Results of a program seeking (i) dynamc analyses of crack arrest in thermally stressed nuclear pressure vessels, (ii) standardization of a laboratory test method for measuring the crack arrest toughness and (iii) a crack arrest toughness data base for unirradiated and irradiated nuclear steels and weldments are described. The dynamic analysis is used to examine a hypothetical run-arrest event in a thermally stressed cylinder for the conditions of the Oak Ridge National Laboratory Thermal Shock Experiment TSE-4 and an assumed brittle material. A large crack jump amounting to 69% of the remaining cylinder wall is calculated. A statistical analysis of the crack arrest toughness measurements on unirradiated test pieces is presented.
Research Organization:
Battelle Columbus Labs., OH (USA)
OSTI ID:
6322724
Report Number(s):
NUREG/CR-0652; BMI-2018
Country of Publication:
United States
Language:
English