Quantitative Analysis of Facet Sizes of Cleavage Failures in Charpy Impact Tests Using a Computer Image Processing Technique

Personal-computer-based software which enables us to quantitatively analyze the facet size of cleavage failures in Charpy impact tests by reconstucting the three-dimensional shapes of fracture surfaces was developed. This specially developed software was based on a computer image processing and patt...

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Bibliographic Details
Published inJSME international journal. Ser. 1, Solid mechanics, strength of materials Vol. 33; no. 1; pp. 72 - 78
Main Authors MINOSHIMA, Kohji, NAGASAKI, Tatsuo, KOMAI, Kenjiro
Format Journal Article
LanguageEnglish
Published Tokyo The Japan Society of Mechanical Engineers 01.01.1990
Japan Society of Mechanical Engineers
Subjects
Applied sciences
Charpy Impact Test
Cleavage Failure
Exact sciences and technology
Facet Size
Fractography
Fracture
Image Processing
Information, signal and communications theory
Reconstruction of Three-Dimensional Shape
Telecommunications and information theory
Three dimensional model
Charpy impact test
Image processing
Size
Cleavage
Fracture
Failures
Fractography
Image reconstruction
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Summary:Personal-computer-based software which enables us to quantitatively analyze the facet size of cleavage failures in Charpy impact tests by reconstucting the three-dimensional shapes of fracture surfaces was developed. This specially developed software was based on a computer image processing and pattern recognition technique consisting of two parts: one to reconstruct the three-dimensional fracture surface topography from a stereo pair of scanning electron micrographs, and the other to determine facet boundaries from the topography. By using this software, it became possible to measure the facet sizes quickly and with sufficient precision.
ISSN:0914-8809
DOI:10.1299/jsmea1988.33.1_72