Fig. 4.
Cyclic interaction diagram expressed in normalised qcyc/(2Su)–qmean/(2Su) and qcyc/p0′–qmean/p0′ stress space, also indicating the interpreted contours of number of cycles (Nf) to failure for p0′ = 200 kPa and p0′ = 400 kPa tests series as summarised in Table 3
