DEVICE FOR DETERMINING PROPERTIES OF THIN-WALLED MATERIAL OF HEMISPHERICAL SEGMENTS Russian patent published in 2017 - IPC G01N3/10 

FIELD: measurement technology.

SUBSTANCE: device comprises a power frame, which includes a lower base on which is fixed the lower clamp part having corresponding inner surface of the hemispherical segment support surface with a central hole, and an upper base comprising an upper guide with mating surface having a similar hole in the center, overlapping by the segment placed between supporting surfaces of the lower spherical gripping clean and upper stop and hermetically closing the inner cavity at the bottom clamping portion, in which the possibility of creating of organized increasing hydraulic pressure to the segment. On the basis of uniformly established executive cylinders that hold the lower part of the clamp. In addition the lower hydraulic cavities in the clamping portion and executive hydraulic cylinders are independent of each other, in addition to the lower clamping portion has the possibility of axial movement relative to the symmetry axis deflection device has the possibility for the upper lateral movement and also relative to the symmetry axis deflection device support surface.

EFFECT: expanding the range of the test membranes by hydrostatic load due to the implementation of the possible variations depending on the efforts of consolidation of the value of the working fluid pressure acting on the membrane, the realization of the possibility of non-destructive testing of thin spherical shells in order to assess their structural strength, improve the reliability of fixing different thickness membranes due to exclusion of local plastic compression at the site of entrapment.

5 cl, 1 dwg