Specimen number Pmax (kN) Pmin (kN) Po (kN) R (=Pmax/ Pmin) th (h)
a0 (mm)
Nf (cycles)
1 12.0 10.0 33.5 0.833 10 23.5 131
3 12.0 -12.0 33.3 -1.000 10 23.6 121
5 12.5 -11.5 31.3 -0.920 0.167 24.3 687