Issue 46

A. Kostina et alii, Frattura ed Integrità Strutturale, 46 (2018) 332-342; DOI: 10.3221/IGF-ESIS.46.30

(a) (b) Figure 4 : Temperature distribution (C°) in the specimen after ultrasonic excitation after 1 second of loading obtained by two models: (a) material damping, (b) visco-elastic Maxwell’s model.

(a)

(b)

(c) (d) Figure 5 : Temperature rise near the crack tip in different moments of loading time obtained under frequency equal to 20000 Hz: (a) t=0.1 second, (b) t=0.3 second, (c) t=0.7 second, (d) t=1 second.

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