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. 2020 Jul 14;13(14):3128. doi: 10.3390/ma13143128

Table 3.

Results of the fibre pullout tests for the different fibre types following laser surface treatment.

Designation Fmax Fmax/fibre fy df sFmax τ max σ f,max/fibre uf
Unity N N MPa mm mm MPa MPa %
SF_R 226.8 45.4 2000 0.25 0.18 57.7 924 46.2
SSF_R 273.6 54.7 1980 0.20 0.21 87.1 1742 88.0
NiTi_R 98.3 19.7 1900 0.20 0.36 31.3 626 32.9

Fmax: maximum pullout load, Fmax/fibre: maximum pullout load per fibre, fy: tensile strength of the fibre, sFmax: fibre pullout at maximum pullout load, df: fibre diameter, τmax: maximum bond stress, δf,max: Maximum reached fibre tensile stress, uf: Capacity utilization of the fibre.