Dynamic fracture model for acoustic emission

European Physical Journal B

Volumn 36, Issue 2, 2003, Pages 203-207

  Minozzi, M ^a,b,c   Caldarelli, G ^b   Pietronero, L ^c,d   Zapperi, S ^d  

^a ROMA TRE UNIVERSITY   (Italy)

^b UNIVERSITÀ DI ROMA LA SAPIENZA   (Italy)

^c CNR Consiglio Nazionale delle Ricerche   (Italy)

^d SAPIENZA UNIVERSITY OF ROME   (Italy)

Author keywords

[No Author keywords available]

Indexed keywords

ACOUSTIC EMISSIONS; FRACTURE; MATHEMATICAL MODELS; RANDOM PROCESSES;

DYNAMIC FRACTURE; POWER LAW; QUASI-STATIC RANDOM FUSE MODEL;

MICROCRACKS;

EID: 11444259198     PISSN: 14346028     EISSN: None     Source Type: Journal    
DOI: 10.1140/epjb/e2003-00336-7     Document Type: Article

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31. In quasistatic models, the damage displays a singular derivative when plotted against stress. This could also be found in our model if we invert the stress-strain curve. The peak in the curve translates into a singular derivative in the inverse curve
32. The distribution of the "elastic" energy released in each avalanche was recently measured in the quasi-static FBM and found to decay as power law with exponent β ≃ 1.8 [8], in agreement with our results