Issue 42

P. J. Huffman et alii, Frattura ed Integrità Strutturale, 42 (2017) 74-84; DOI: 10.3221/IGF-ESIS.42.09

600

Experimental Data: R=‐1 + R=0 Huffman model

500

100 Stress amplitude, Δσ/2 [‐] 200 300 400

0

1.0E+02 1.0E+03 1.0E+04 1.0E+05 1.0E+06 1.0E+07

Reversals to failure, 2N f

Figure 4. Stress-life curve of the P355NL1 steel, per reference [1].

1.0E+00

Experimental Data: R=‐1 + R=0 Huffman model

1.0E‐01

1.0E‐04 Strain amplitude, Δε/2 [‐] 1.0E‐03 1.0E‐02

1.0E‐05

1.0E+02 1.0E+03 1.0E+04 1.0E+05 1.0E+06 1.0E+07

Reversals to failure, 2N f

Figure 5. Strain-life curve of the P355NL1 steel, per reference [1].

1.0E‐2

Huffman model for R=0 MB‐02: Experimental Data MB‐04: Experimental Data

1.0E‐3

1.0E‐4

1.0E‐5

da/dN (mm/cycle)

R=0

1.0E‐6

200

1600

1000

500

 K (N.mm ‐3/2 )

a)

81