METHOD OF DEFINING ONE-PIECE SPECIMEN MECHANICAL PROPERTIES Russian patent published in 2011 - IPC G01N3/40 

FIELD: physics.

SUBSTANCE: arbitrary-shape one-piece specimen is selected to be loaded by spherical indenters to its collapse. Collapse load is measured. One-piece specimen breakage surface area is measured to determine specimen mechanical properties. Sites sized to at least 10 x 10 mm are prepared parallel to each other at expected contact with indenters. Axial loading is performed by two spherical indenters in applying uniform constant-rate load equal to 0.1 to 0.5 kN/s. Adhesion of one-piece specimen is defined by claimed formula.

EFFECT: higher accuracy and simplified procedure.

2 cl, 1 tbl