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Figure 1. Schematic illustration of the stainless steel testing device (left, 3D front view; right, rear view) showing lateral attachment of a 1x1x10 mm microbar with the middle 2 mm left free. The upside-down U-shaped part A encloses an exactly (frictionless) fitting bar B, which is connected to A through a 0.35-mm-thick brass sheet glued at the back side of A and B (see rear view). The brass sheet allows hinge movement of B when force (F) is applied to B via a rod and ball. The pitch distance from the ball to the hinge is 80% of the distance from the specimen to the hinge, and to obtain the forces exerted on the specimen, the measured forces had to be multiplied by a value of 0.80.
