5.3. Comparison between the devices
The outcomes of specimens with the same features, tested in different load conditions with two devices, are
now analyzed shifting the curves to overlap the peaks.
For every series of tests, the mean values of the study parameters and the average curves have been calculated
to easily compare the results. As appear in Figure 5, the trends recorded during the shear tests have different
shapes and different peak values. The diagram depicts the dissimilarities of the curves in the peak of the shear
strength as well as in the correspondent displacements and in the failure behavior.