Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/8374
Full metadata record
DC FieldValueLanguage
dc.contributor.authorRao, M V M S-
dc.contributor.authorLakshmi, K J Prasanna-
dc.date.accessioned2010-04-26T05:12:12Z-
dc.date.available2010-04-26T05:12:12Z-
dc.date.issued2006-11-
dc.identifier.issn0975-1041 (Online); 0019-5596 (Print)-
dc.identifier.urihttp://hdl.handle.net/123456789/8374-
dc.description820-825en_US
dc.description.abstractMaterials undergoing brittle failure produce large number of acoustic emissions (AE) of varying amplitudes. The most useful way to describe and analyse the AE amplitude distribution is by computing the b-value (slope of the log-linear frequency-magnitude distribution of AE). Conventionally, the b-value of AE is calculated using the methods adopted in seismology since many similarities exist between AE and seismic waves. The b-value is usually obtained either from the cumulative frequency distribution or the discrete frequency distribution of earthquake magnitudes and the same principles hold good for the AE data also. We have carried out the AE amplitude distribution analysis using advanced software (Mistras-2001) and computed the AE b-value using the Gutenberg-Richter relationship for the cumulative frequency distribution data and Aki’s method for the discrete distribution data. The results obtained by both these methods to evaluate the fracture process in a granite rock are compared and discussed as a case study in this paper. Useful inferences about the fractal distribution of crack lengths leading to the dynamic failure of the test rock could also be obtained using the AE b-value data.en_US
dc.language.isoen_USen_US
dc.publisherCSIRen_US
dc.relation.ispartofseriesG10K11/16en_US
dc.sourceIJPAP Vol.44(11) [November 2006]en_US
dc.subjectMicrocrackingen_US
dc.subjectAE b-valueen_US
dc.subjectRock fractureen_US
dc.subjectFractalsen_US
dc.titleAmplitude distribution analysis of acoustic emissions and investigation of the development of brittle fracture in rocken_US
dc.typeArticleen_US
Appears in Collections:IJPAP Vol.44(11) [November 2006]

Files in This Item:
File Description SizeFormat 
IJPAP 44(11) 820-825.pdf138.3 kBAdobe PDFView/Open


Items in NOPR are protected by copyright, with all rights reserved, unless otherwise indicated.