METHOD FOR DETERMINING REFERENCE SURFACE OF INDENTATION TEST MATERIAL FOR MEASUREMENT OF YIELD STRENGTH AND METHOD FOR DETERMINING DEPTH OF MATERIAL PILE-UP

Title:

METHOD FOR DETERMINING REFERENCE SURFACE OF INDENTATION TEST MATERIAL FOR MEASUREMENT OF YIELD STRENGTH AND METHOD FOR DETERMINING DEPTH OF MATERIAL PILE-UP

Document Type and Number:

WIPO Patent Application WO/2011/062324

Kind Code:

A1

Abstract:

Disclosed are a method for determining a reference surface of indentation test material, and a method for measuring material pile-up, which is required in the measurement of surface strength. The method for determining a reference surface of indentation test material is capable of accurately determining the reference surface by considering the surface roughness of material which has not undergone impression deformation, on the basis of 3-dimensional image analysis technology. The method for determining the depth of material pile up in indentation material enables the accurate measurement of the size of plasticity areas and the depth of material pile-up in indentation material, as required in order to accurately measure surface strength. This is achieved by using the reference surface as determined as a result of the above method for determining the reference surface of indentation material, and analysing the contours of the material pile-up areas.

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Inventors:

LEE YUN-HEE (KR)
RYU KWON SANG (KR)
BAEK UN BONG (KR)
PARK JONG SEO (KR)

Application Number:

PCT/KR2010/000865

Publication Date:

May 26, 2011

Filing Date:

February 11, 2010

Export Citation:

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Assignee:

KOREA RES INST OF STANDARDS (KR)
LEE YUN-HEE (KR)
RYU KWON SANG (KR)
BAEK UN BONG (KR)
PARK JONG SEO (KR)

International Classes:

G01N3/40; G01B11/24; G06T7/60

Other References:

LEE YUN HEE, KIGAS, vol. 12, no. 2, June 2008 (2008-06-01), pages 92 - 98
IS. CHOI ET AL., JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, vol. 56, 2008, pages 157 - 171
IS.CHOI ET AL., JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, vol. 56, 2008, pages 172 - 183

Attorney, Agent or Firm:

KWON, Oh-Sig et al. (921Dunsan-dong, Seo-gu, Daejeon 302-120, KR)

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