PROCESS DETERMINING MECHANICAL CHARACTERISTICS OF STRUCTURAL AND COMPOSITE MATERIALS Russian patent published in 2001 - IPC

FIELD: metrology. SUBSTANCE: invention is related to metrological technology of structural and composite materials by which results relation between parameters of process of tension of specimens and characteristics of penetration of indenters of various implementation is established. Process determining mechanical characteristics of structural and composite materials involves anchoring of specimen in grippers of tearing machine and its subsequent tension with recording of σ_i-ε_i. diagrams. Tension test is carried out simultaneously with penetration of indenters mounted in heads of grippers of tearing machine. Indenters deform tested materials on rear side of specimen. Grippers of tearing machine are of hinge-flap type with screwed on nuts. Diameters of head of specimen is three-five time times as much as diameter of basic broken part of specimen. EFFECT: simultaneous test of specimen for tension and by penetration of indenters. 3 cl, 3 dwg