Universal testing device for testing magnetostrictive mechanical properties of magnetic sensitive elastomer

Abstract

The invention discloses a universal testing device for testing magnetostrictive mechanical properties of a magnetic sensitive elastomer. The universal testing device comprises an upper connecting element, a loading end iron core, a hexagon bolt, upper end covers, a first magnet exciting coil, a second magnet exciting coil, an L-shaped iron core, a lower end cover, a hexagon bolt and a lower connecting element; the upper connecting element is connected with the loading end iron core through threads of the upper connecting element; the loading end iron core is located between the eudipleural upper end covers; the upper end covers are connected with the L-shaped iron core through the hexagon bolts; the first magnet exciting coil and the second magnet exciting coil are arranged up and down along the central shaft; the lower end covers are connected with the L-shaped iron core through the hexagon bolts; the lower connecting element is connected with the lower end cover through threads of the lower connecting element; the device is integrally connected with a universal testing machine through the upper connecting element and the lower connecting element; and the universal testing device disclosed by the invention adjusts the magnetic field strength and replaces fixtures to perform universal test of magnetostriction, tension and compression and shear properties of the magnetic sensitive elastomer under different magnetic fields, so that the universal testing device has a brilliant application prospect in the technical field of force magnetic coupling parameters and property measurement of ferromagnetic composite materials.

Description

(1) Technical field [0001] The invention relates to a general test device for testing the magnetomechanical properties of a magnetosensitive elastic body, in particular to a device for generating magnetic field, mechanical loading and measuring the magnetomechanical properties of materials based on the principle of force-magnetic coupling, which is mainly used for magnetic Measurement of magnetostriction, magnetotension-compression and magneto-shear properties of sensitive elastomers in different magnetic fields. The invention belongs to the technical field of measuring force-magnetic coupling parameters and characteristics of ferromagnetic composite materials. (2) Background technology [0002] At present, both the magnetic properties of materials in a magnetic field and the mechanical properties of materials in a structural field have developed mature testing techniques, and various magnetic testing instruments (Gauss meters, etc.) and mechanical testing instruments (unive...

AI Technical Summary

Problems solved by technology

However, the research on the force-magnetic coupling behavior of materials is not deep enough, and the corresponding experimental equipment and instruments for studying the force-magnetic coupling effect are very lacking.

A small number of self-made force magnetic testing equipment that have appeared in the literature have various defects, such as: high cost, poor versatility, and testing instruments are susceptible to electromagnetic field interference, etc.

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