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Acoustic emission during slow crack growth

Technology reports of the Yamaguchi University Volume 2 Issue 4 Page 381-388
published_at 1980-12
KJ00004351010.pdf
[fulltext] 417 KB
Title
Acoustic emission during slow crack growth
Creators Sano Osamu
Creators Ogino Shoji
Source Identifiers
Double torsion testing was carried out to clarify the relationship between the crack growth rate and mode I stress intensity factor at the crack-tip and to investigate the characteristics of acoustic emissions associated with subcritical crack growth. Rocks used were Murata basalt and Oshima granite. Dominant frequency of acoustic emissions ranged from 100kHz to 1MHz, which obviously corresponds with the frequency range of acoustic emissions under usual uniaxial compressive loadings. Acoustic emission rate showed the close relation with the growth rate of the crack. A tendency that the dominant frequency decreased with the increase in crack velocity was observed.
Subjects
工学 ( Other)
Languages eng
Resource Type departmental bulletin paper
Publishers 山口大学工学部
Date Issued 1980-12
File Version Version of Record
Access Rights open access
Relations
[ISSN]0386-3433
[NCID]AA0086073X
Schools 工学部