Issue 68

P.V. Trusov et alii, Frattura ed Integrità Strutturale, 68 (2024) 159-174; DOI: 10.3221/IGF-ESIS.68.10

360 σ , MPa

320 σ , MPa

240

280

120

240

0

200

20 ε , %

9 ε , %

0

5

10

15

5

6

7

8

Figure 3: Stress-strain diagram (deformation curve) ( left ) and an enlarged fragment of the curve ( right ) of specimen No. 1 under uniaxial tension.

τ , MPa

180

240

τ , MPa

160

170

80

0

160

24 γ , %

14 γ , %

10

11

12

13

0

6

12

18

Figure 4: Torsional deformation curve ( left ) and an enlarged fragment of the curve ( right ) ( No. 3).

а d Figure 5: Inhomogeneous fields of local strain rates ( a – 13 sec, b – 14 sec, c – 16.5 sec, d – 17 sec), corresponding to the intensity values of the accumulated strain ( a – 8.03%, b – 8.2%, c – 10.2%, d – 10.3%) for specimen No. 4 under torsion. b c

163