Composite material mechanical property testing device and method

Abstract

The invention discloses a composite material mechanical property testing device and method, and belongs to the technical field of material mechanical property testing. The composite material mechanical property testing device comprises a pulse power supply, an electromagnetic force loading coil, a driving mechanism and a supporting mechanism. The electromagnetic force loading coil sleeves the outer side of the supporting mechanism, and the driving mechanism is arranged on the outer side of the electromagnetic force loading coil and is attached to the surface of a to-be-tested composite material; the pulse power supply is used for transmitting pulse current to the electromagnetic force loading coil; the electromagnetic force loading coil is used for generating a pulsed magnetic field after receiving the pulse current; and the driving mechanism is used for generating an induced eddy current under the pulsed magnetic field so as to generate a radial electromagnetic force and / or an axial electromagnetic force, and applying the electromagnetic force to the to-be-tested composite material so as to enable the to-be-tested composite material to expand outwards and / or be compressed axially to be damaged, so that the structural strength of the to-be-tested composite material is measured. According to the invention, the multi-axial force loading test of the composite material of the winding structure can be realized, and the mechanical reinforcement performance of the composite material can be quickly and effectively evaluated.

Description

technical field [0001] The invention belongs to the technical field of testing mechanical properties of materials, and more specifically relates to a device and method for testing mechanical properties of composite materials. Background technique [0002] With the development of pulsed strong magnetic field technology, the peak magnetic field of pulsed magnets is getting higher and higher. For the mechanical stability of the magnet structure, the magnet is often reinforced by winding structure reinforced fiber composite materials. Then, for pulsed magnets with a peak magnetic field of more than 80T, the stress during the discharge process reaches 3-4GPa, which has reached or even exceeded the mechanical limit of the material. In order to achieve a higher magnetic field under the condition of existing reinforced materials, it is necessary to Mechanical properties testing and evaluation of fiber composites for pulsed magnet reinforcement. [0003] Reasonable mechanical testin...

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Problems solved by technology

[0006] In view of the above defects or improvement needs of the prior art, the present invention provides a composite material mechanical testing device and method, thereby solving the problem that the existing testing method cannot effectively reflect the mechanical properties of the composite material under the internal force of the pulse magnet technical issues

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