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Table 2 Comparison of ξavg and \(\overline{\kappa }\) for Specimen #3 (σ = 1, ϑ = − 2.3)

From: A Comparative Study on Asperity Peak Modeling Methods

Correlation length

Method

ξavg

Percent variation

\(\overline{\kappa }\)

Percent variation

10

Three-point definition

0.5589

0

1.2285

0

Spectral moment approach

1.0816

93.52%↑

1.3519

10.04%↑

100

Three-point definition

0.1977

0

1.1205

0

Spectral moment approach

0.3493

76.68%↑

1.2617

12.60%↑