본 발명은 벽부의 균열 성장을 억제하는 방법에 관한 것이다. 본 발명의 일 실시예에 따르면, 벽부의 균열 성장을 억제하는 방법은 균열에 작업유체를 주입하는 주입단계; 상기 균열의 입구에서 상기 균열의 내측을 향하는 방향으로 상기 작업유체를 가진시키는 가진단계; 및 상기 균열 내의 작업유체에 기공을 발생시킴으로써 상기 균열의 내측 단부에 압축 잔류 응력을 발생시키기 위한 변형단계를 포함한다.

    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.


    Access

    Download


    Export, share and cite



    Title :

    CRACK REPAIRING METHOD FOR DETERRING GROWTH OF SURFACE CRACKS ON THE WALL USING ULTRASOUND


    Additional title:

    초음파를 이용하여 벽부의 균열 성장을 억제하는 균열보수 방법


    Publication date :

    2018-05-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    C21D Veränderung der physikalischen Struktur von Eisenmetallen , MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS / 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 / G21C NUCLEAR REACTORS , Kernreaktoren




    DETERRING NORTH KOREA

    Michael Peck | Online Contents | 2017


    Repairing machine for repairing cracks in ship navigation

    HUANG ZHAOZHAN | European Patent Office | 2020

    Free access

    Repairing Hidden Cracks in Coolant Tubes

    Mills, R. C., Sr. / Duesberg, J. | NTRS | 1984


    A crack repairing and reinfocing device of construction vertical wall

    KIM SUNG WON | European Patent Office | 2017

    Free access