Shear fracture arrestability of controlled rolled steel X70 line pipe by full-scale burst test
The High Strength Line Pipe Research Committee organized by the Iron and Steel Institute of Japan has conducted five full-scale burst tests on line pipe of 48 in. o.d. X 0.720 in. w.t. (wall thickness) and grade X70 under pressure of 80 percent SMYS with air: 1) to study the influence of separation on the arrestability of shear fracture, and 2) to obtain the material criterion for arresting the propagating shear fracture. Test pipes of Charpy V notch energy from 80 to 290J with different amount of separation, were produced from both controlled rolled steels and quenched and tempered steels. These research projects clarified that the separation of material itself did not influence the crack propagation behavior and its arrestability. Furthermore, the material criterion for arresting the shear fracture was analyzed by the pressure-velocity relationship counterbalancing the crack velocity curve and gas decompression curve.
- Research Organization:
- Kawasaki Steel Corp., Kawasaki-cho, Chiba
- OSTI ID:
- 6554351
- Journal Information:
- J. Energy Resour. Technol.; (United States), Vol. 106:1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
PIPELINES
CRACK PROPAGATION
FRACTURE MECHANICS
STEELS
CHARPY TEST
COMPRESSION
DIAGRAMS
JAPAN
PRESSURE DEPENDENCE
QUENCHING
RESEARCH PROGRAMS
ROLLING
SHEAR
TEMPERING
THICKNESS
VELOCITY
ALLOYS
ASIA
DESTRUCTIVE TESTING
DIMENSIONS
FABRICATION
HEAT TREATMENTS
IMPACT TESTS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS TESTING
MATERIALS WORKING
MECHANICAL TESTS
MECHANICS
TESTING
360103* - Metals & Alloys- Mechanical Properties
420205 - Engineering- Transport & Storage Facilities- (1980-)