FIELD: test equipment.
SUBSTANCE: invention relates to test equipment and to strength tests. A unit includes a base and coaxially installed on it end and central grips with a common rotation axis and holes for a specimen, a rotation drive of the end grips, a pusher that is connected by one of its ends to the central grip and a loader that is connected to the other end of the pusher. The holes made in the grips have an out-of-round section and are made in compliance with the specimen cross-section.
EFFECT: increasing the volume of information by performing tests at single-cyclic and double-cyclic bending loading with the constant ratio of forces in longitudinal sections of a specimen.
2 cl, 1 dwg
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|---|---|---|---|
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