Stress loading combination device

A combined device and stress loading technology, which is applied in the direction of measuring devices, using stable tension/pressure to test the strength of materials, instruments, etc., can solve the problems of complex principles, high development costs, and increased research difficulty, so as to reduce test errors, Good test effect and easy operation
CN110514523APending Publication Date: 2019-11-29GUANGDONG UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
GUANGDONG UNIV OF TECH
Publication Date
2019-11-29

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Abstract

The invention relates to the technical field of building material test equipment, in particular to a stress loading combination device. The device is used for being placed on a loading platform of a uniaxial servo press to perform a true triaxial pressure test on a cubic test piece. The device comprises two groups of first loading components and second loading components, wherein the first loadingcomponents are arranged perpendicular to each other and are used for transmitting force in a circumferential direction of the cubic test piece, and the second loading components are used for transmitting force in an axial direction of the cubic test piece; the first loading components and the second loading components make close contact with a circumferential surface and an axial surface of the cubic test piece respectively; and a force application mechanism is connected to each first loading component, a control system is connected to each force application mechanism, and displacement measurement components are arranged on the first loading components and the second loading components respectively. Through the device, restraint stress can be precisely controlled, manufacturing cost is low, operation is easy, and the application range is wide.
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Description

technical field

[0001] The invention relates to the technical field of building material testing equipment, and more particularly, to a stress loading combination device. Background technique

[0002] Various building materials are often subjected to multi-directional stresses in practical applications. Understanding their mechanical properties, failure modes, and constitutive relations under this condition has important guiding significance for their application in practical engineering. Among them, the true triaxial compressive stress state, that is, the material is subjected to compressive stresses that are not necessarily equal in magnitude on the three principal stress axes, represents a wide range of real engineering applications, such as steel tube concrete structures, fiber reinforced polymer confined concrete structures , nuclear reactor high-pressure container concrete structure, high-rise large-scale concrete components, soil or rock below the surface, etc. Howev...

Claims

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