CRACK REPAIR METHOD FOR INHIBITING CRACK GROWTH IN WALL PORTION BY USING ULTRASONIC WAVE

Title:

CRACK REPAIR METHOD FOR INHIBITING CRACK GROWTH IN WALL PORTION BY USING ULTRASONIC WAVE

Document Type and Number:

WIPO Patent Application WO/2018/044074

Kind Code:

A1

Abstract:

The present invention relates to a method for inhibiting crack growth in a wall portion. A method for inhabiting crack growth in a wall portion according to an embodiment of the present invention comprises: an injection step for injecting working fluid in a crack; a vibration step for vibrating the working fluid in a direction from an opening of the crack to an inner side of the crack; and a deformation step for generating residual compressive stress at an inner end of the crack by generating pores in the working fluid inside the crack.

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Inventors:

JUNG SUNGHWAN (KR)

Application Number:

PCT/KR2017/009498

Publication Date:

March 08, 2018

Filing Date:

August 30, 2017

Export Citation:

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Assignee:

UNIV DANKOOK IACF (KR)

International Classes:

B64F5/40; C21D10/00; G21C13/02

Foreign References:

KR20080050519A	2008-06-05
JP2004169099A	2004-06-17
KR20050086683A	2005-08-30
JP2005152956A	2005-06-16
US6338765B1	2002-01-15

Attorney, Agent or Firm:

FIRSTLAW P.C. (KR)

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