PSI - Issue 2_B

V. Aleksić et al. / Procedia Structural Integrity 2 (2016) 3313 – 3321

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V. Aleksi ć / Structural Integrity Procedia 00 (2016) 000–000

a) Exponent n’ = 0.047 and coefficient log K’ = 2.976 of cyclically stress-strain curve

b) Cyclic stress-strain curve

Fig. 5. Construction of CSSC for BM of NN-70, N f = N f1 (force drop by 25%, ISO 12106:2003(E) (2003))

a) Exponent n’ = 0.045 and coefficient log K’ = 2.972 of cyclically stress-strain curve

b) Cyclic stress-strain curve

Fig. 6. Construction of CSSC for BM of NN-70, N f = N f2 (force drop by 50%, ASTM E 606-80 (1985))

Fig. 7. Comparison of cyclic and monotonous stress-strain curve of BM of NN-70 steel, N f = N f1 (force drop by 25%, ISO 12106:2003(E) (2003))