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Table 6 Sensitivity analyses with respect to three parameters in the HEDE component of Xing et al.’s model

From: A review of crack growth models for near-neutral pH stress corrosion cracking on oil and gas pipelines

Parameter

Case

Value

ZX-HEDE

Remark

Mean

COV (%)

D (m2/s)

Base case

1.7 × 10− 9

1.06

61.2

 

Sensitivity #1

2.7 × 10−11

1.46

59.8

Value suggested in [52]

Sensitivity #2

2.0 × 10−10

1.20

59.8

Intermediate value between base case and sensitivity #1

Ω (m3)

Base case

2.0 × 10−30

1.06

61.2

 

Sensitivity #1

3.818 × 10−30

0.29

61.6

Value suggested in [52, 53]

Sensitivity #2

4.317 × 10− 30

0.23

61.6

Value suggested in [57]

c0

Base case

0.16 × 10− 6

1.06

61.2

 

Sensitivity #1

2 × 10− 6

0.74

61.2

Value suggested in [60]

Sensitivity #2

5 × 10− 4

0.25

61.2

Value suggested in [50]