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Apparatus and method for testing mechanical properties of composite materials

A technology for composite materials and testing devices, which is applied in the direction of measuring devices, analyzing materials, and using stable tension/pressure to test the strength of materials, etc., can solve problems such as inability to effectively reflect the mechanical properties of composite materials, and achieve high reliability and ease of use. Effects of replacement and removal

Active Publication Date: 2021-12-03
HUAZHONG UNIV OF SCI & TECH
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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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  • Apparatus and method for testing mechanical properties of composite materials
  • Apparatus and method for testing mechanical properties of composite materials
  • Apparatus and method for testing mechanical properties of composite materials

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Embodiment Construction

[0032] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0033] Such as figure 1 As shown, an embodiment of the present invention proposes a composite material mechanical performance testing device, including a radial electromagnetic force loading coil 1, a drive ring 2, an axial electromagnetic force loading coil 4, a driving plate and a support mechanism 6; The radial electromagnetic force loading coil 1 and the axial electromagnetic force loading ...

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Abstract

The invention discloses a device and method for testing mechanical properties of composite materials, belonging to the technical field of testing mechanical properties of materials, comprising: a pulse power supply, an electromagnetic force loading coil, a driving mechanism and a supporting mechanism; the electromagnetic force loading coil is sleeved on the supporting mechanism On the outside, the drive mechanism is set outside the electromagnetic force loading coil and attached to the surface of the composite material to be tested; the pulse power supply is used to transmit pulse current to the electromagnetic force loading coil; the electromagnetic force loading coil is used to generate pulses after receiving the pulse current Magnetic field; the drive mechanism is used to generate induced eddy currents under the pulsed magnetic field to generate radial electromagnetic force and / or axial electromagnetic force, and apply the electromagnetic force to the composite material to be tested so that the composite material to be tested expands outward and / or failure in axial compression to measure the structural strength of the composite material to be tested. The invention can realize the multi-axial force loading test on the composite material of the winding structure, and can quickly and effectively evaluate its mechanical reinforcement performance.

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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/02G01N3/08H01F27/28H01F7/20
CPCG01N3/02G01N3/08G01N2203/0016G01N2203/005G01N2203/0067H01F7/20H01F27/28
Inventor 李亮吕以亮吴添
Owner HUAZHONG UNIV OF SCI & TECH
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