There is provided a crack repairing method for suppressing a crack growth in a wall portion. The crack repairing method includes an injection step in which working fluid is injected into a crack formed into a surface of the wall portion of a target object and a vibration step in which vibration is applied to the working fluid in a direction from an crack initiation portion of the crack on the surface to an inner end portion of the crack. The crack repairing method further includes a deformation step in which a cavity is generated in the working fluid by the applied vibration and compressive residual stress is generated at the inner end portion of the crack.
Crack pepair method for inhibiting crack growth in wall portion by using ultrasonic wave
2021-02-02
Patent
Elektronische Ressource
Englisch
IPC: | B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen / B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / C21D Veränderung der physikalischen Struktur von Eisenmetallen , MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS / G21C NUCLEAR REACTORS , Kernreaktoren |
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