JPS5620865A - Controlling method of crack growing direction in pressure container - Google Patents
Controlling method of crack growing direction in pressure containerInfo
- Publication number
- JPS5620865A JPS5620865A JP9613379A JP9613379A JPS5620865A JP S5620865 A JPS5620865 A JP S5620865A JP 9613379 A JP9613379 A JP 9613379A JP 9613379 A JP9613379 A JP 9613379A JP S5620865 A JPS5620865 A JP S5620865A
- Authority
- JP
- Japan
- Prior art keywords
- crack
- pressure container
- tensile stress
- wall
- cracks
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Heat Treatment Of Articles (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
PURPOSE: To enable the early finding of cracks in the wall of the pressure container by a method wherein a compression stress is remained in the wall of the pressure container to cause a crack growing direction toward its thick wall portion.
CONSTITUTION: No cracks are grown at the compression stress area 4 shown by some dots even if there are any crack producing points therein when a compression stress -σ and a tensile stress +σ are alternatively remained in the container wall 3. If there are any cracks 2 in the tensile stress area 5 shown by a while base portion, they are grown in the tensile stress area 5 as indicated by an equal speed curve, they are not grown in the compression stress area 4. At last, a length of crack L when it is passed up to an outer surface of the tensile stress and thereby a length of the crack may substantially be decreased.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9613379A JPS5620865A (en) | 1979-07-30 | 1979-07-30 | Controlling method of crack growing direction in pressure container |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9613379A JPS5620865A (en) | 1979-07-30 | 1979-07-30 | Controlling method of crack growing direction in pressure container |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5620865A true JPS5620865A (en) | 1981-02-26 |
Family
ID=14156885
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9613379A Pending JPS5620865A (en) | 1979-07-30 | 1979-07-30 | Controlling method of crack growing direction in pressure container |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5620865A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5854931A (en) * | 1981-09-25 | 1983-04-01 | 工業技術院長 | Reaction data recording system for phsycology experiment |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5270914A (en) * | 1975-11-07 | 1977-06-13 | Hitachi Ltd | Heat treatment of pipe |
JPS52130409A (en) * | 1976-04-27 | 1977-11-01 | Ishikawajima Harima Heavy Ind Co Ltd | Generating method for residual stress on the inner and outer surfaces of pipe |
-
1979
- 1979-07-30 JP JP9613379A patent/JPS5620865A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5270914A (en) * | 1975-11-07 | 1977-06-13 | Hitachi Ltd | Heat treatment of pipe |
JPS52130409A (en) * | 1976-04-27 | 1977-11-01 | Ishikawajima Harima Heavy Ind Co Ltd | Generating method for residual stress on the inner and outer surfaces of pipe |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5854931A (en) * | 1981-09-25 | 1983-04-01 | 工業技術院長 | Reaction data recording system for phsycology experiment |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5360410A (en) | Combustion chamber | |
JPS5620865A (en) | Controlling method of crack growing direction in pressure container | |
JPS5439315A (en) | Method of manufacturing high-tensile steel-wire | |
JPS5420943A (en) | Manufacture of composite metallic wire and rod | |
JPS52129319A (en) | Photographing method of welded area | |
JPS5415294A (en) | Method of loading marine diesel engine | |
JPS52110570A (en) | Forming method of silicon epitaxial layer | |
JPS5314391A (en) | Holding method of seabed coaxial cable | |
JPS5259080A (en) | Gel formation method | |
JPS51111518A (en) | Controlling method of gas turbine | |
JPS52138095A (en) | Growth of sapphire single crystal | |
JPS5353143A (en) | Method of plant construction | |
JPS52137857A (en) | Method of controlling ingot pulling by crane with no shock | |
JPS52127083A (en) | Semiconductor strain element | |
JPS549104A (en) | Method of producing sintered ore | |
JPS51121950A (en) | Method of forming water-tight manhole | |
JPS52128283A (en) | Preparation of raw material of alcohol fermentation | |
JPS533053A (en) | Fluorescent reflection surface formation method | |
JPS52122696A (en) | Method and apparatus for manufacturing soy | |
JPS5373689A (en) | Work microchamfering method and apparatus for practicing the same | |
JPS566742A (en) | Swaging method | |
JPS528261A (en) | Oilhydraulic pressure controller of fluid automatic transmission | |
JPS52116592A (en) | Method of reducing vibration | |
JPS5359277A (en) | Method of forming annular bulb | |
JPS5668534A (en) | Manufacture of aluminum joint |