fracture analysis. Volume 1 of welded type 304 stainless steel pipe. J-R curve characterization and limit load analysis
An experimental investigation was performed to determine the fracture resistance of 4 in. diameter circumferentially welded type 304 stainless pipe at 288/sup 0/C (550/sup 0/F). Two crack geometries were investigated. These were a circumferential through wall crack (simple) and circumferential through wall crack superimposed on a 360 degree radial crack on the inside diameter of the pipe (complex). Test results were analyzed using J-integral and limit load techniques. Additionally, J-integral resistance curve tests were performed on large plansize compact tension specimens for comparison with the pipe specimen results. Results of the J-integral analysis indicate that J-initation for pipes containing simple cracks was approximately 1120 kJ/M/sup 2/(6400 in-lb/in/sup 2/) and a factor of four decrease in J-initiation was noted for pipes containing the complex crack. Good agreement was shown at J-initiation between pipe specimens containing the simple crack geometry and compact tension specimens. The accuracy of the limit load analysis was variable for pipes containing the simple crack geometry with the average predicted limit load calculated using the ASME Code flow stress being 8.7% higher than that actually attained in the tests. The calculated limit loads based on the ASME Code flow stress were conservative for the complex crack cases.
- Research Organization:
- David W. Taylor Naval Ship Research and Development Center, Bethesda, MD (USA)
- OSTI ID:
- 5505418
- Report Number(s):
- NUREG/CR-4538-Vol.1; ON: TI86901465
- Country of Publication:
- United States
- Language:
- English
Similar Records
Comparison of through-wall-cracked pipe and compact tension specimen cyclic J-R curves
J-R curves from through-wall-cracked pipe tests -- Combined loading and short crack considerations
Related Subjects
36 MATERIALS SCIENCE
NUCLEAR POWER PLANTS
REACTOR COOLING SYSTEMS
PIPES
WELDED JOINTS
STAINLESS STEEL-304
FRACTURE MECHANICS
CRACK PROPAGATION
CRACKS
FLUID FLOW
HIGH TEMPERATURE
LOADING
MATHEMATICAL MODELS
STRESSES
ALLOYS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
COOLING SYSTEMS
CORROSION RESISTANT ALLOYS
ENERGY SYSTEMS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
IRON ALLOYS
IRON BASE ALLOYS
JOINTS
MATERIALS
MATERIALS HANDLING
MECHANICS
NICKEL ALLOYS
NUCLEAR FACILITIES
POWER PLANTS
REACTOR COMPONENTS
STAINLESS STEELS
STEELS
THERMAL POWER PLANTS
220200* - Nuclear Reactor Technology- Components & Accessories
360103 - Metals & Alloys- Mechanical Properties