Ceramic prestress loading device and mounting method thereof

A technology of loading device and installation method, which is applied in the direction of measuring device, using stable tension/pressure testing material strength, instruments, etc., can solve the problems of complex loading method and high equipment requirements, and achieve the improvement of anti-penetration ability and large Penetration resistance, simple structure effect

Pending Publication Date: 2021-07-09
NANJING UNIV OF SCI & TECH
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Problems solved by technology

This loading method is complex in process and requires high equipment requirements, and is not suitable for ballistic experimental research on prestressed ceramics.

Method used

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  • Ceramic prestress loading device and mounting method thereof

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Embodiment Construction

[0022] The present invention will be further introduced below in conjunction with the accompanying drawings and specific embodiments.

[0023] A ceramic prestressed loading device, comprising a prestressed loading part 1, a cushion block 2, a constraint frame 3, a ceramic block 4, and a plurality of positioning blocks 5,

[0024] The cushion block 2, the ceramic block 4 and a plurality of positioning blocks 5 are located in the constraint frame 3, the ceramic block 4 is surrounded by a plurality of positioning blocks 5, and the prestressed loading part 1 can pass through the spacer block 2 to many A positioning block 5 applies stress, and a plurality of positioning blocks 5 can apply stress to the ceramic block 4, so that the internal stress of the ceramic block 4 is uniformly distributed. Under the action of the positioning block 5, the ceramic 4 produces a certain deformation, and internal stress is generated. The constraint frame 3 ensures that the positioning block 5 can e...

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Abstract

The invention discloses a ceramic prestress loading device and a mounting method thereof, the ceramic prestress loading device comprises a prestress loading component, a cushion block, a constraint frame, a ceramic block and a plurality of positioning blocks, the cushion block, the ceramic block and the plurality of positioning blocks are located in the constraint frame, the ceramic block is surrounded by the plurality of positioning blocks, the prestress loading component can apply stress to the multiple positioning blocks through the cushion blocks, and the multiple positioning blocks can apply stress to the ceramic block, so that the internal stress of the ceramic block is uniformly distributed. The device is simple in structure and convenient to use, the prestress is easy to adjust, the prestress of a certain degree can be applied to the ceramic, cracks of the ceramic under the high-speed impact effect are reduced, and the penetration resistance of the ceramic armor is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of prestressed loading, in particular to a ceramic prestressed loading device and an installation method thereof. Background technique [0002] The application of low density, high hardness, high compressive strength and other characteristics of ceramics can effectively reduce the weight of armor and improve the bullet resistance of armor. As a brittle material, the disadvantage of ceramics is that they are easily broken during the penetration of projectiles. Only when the ceramic armor remains intact and reduces the expansion effect can it fully exert its anti-ballistic performance. Studies have shown that when prestressed ceramics are fractured by high-speed impact, the ceramics are still pressed relatively tightly, and only cracks do not expand. When the projectile continues to penetrate the ceramic, it is necessary for the projectile to extrude the broken ceramic particles along the penetration directi...

Claims

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Application Information

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IPC IPC(8): G01N3/08G01N3/02
CPCG01N3/08G01N3/02G01N2203/0019G01N2203/0032
Inventor 赵鹏飞张先锋谈梦婷杜宁熊玮
Owner NANJING UNIV OF SCI & TECH
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