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T-shaped Hopkinson torsion bar device

A technology of Hopkinson compression bar and torsion bar, which is applied in the field of T-shaped Hopkinson torsion bar device, can solve the problems of bar clamping and rotation, bolt breakage, etc., to solve inconvenient operation, improve repeatability, and test stability good sex effect

Inactive Publication Date: 2015-04-29
中国人民解放军陆军军官学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. It is difficult for the clamping device to completely clamp the rod without rotation, and it is often necessary to continuously strengthen the clamping force (further tighten the bolt) during the loading process to prevent rotation and sliding
During this process, bolts often break suddenly, causing the experiment to fail

Method used

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  • T-shaped Hopkinson torsion bar device

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Embodiment Construction

[0017] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the following will further elaborate the present invention in conjunction with specific embodiments and accompanying drawings, but this is not intended to limit the protection scope of the present invention.

[0018] Such as figure 1 A T-shaped Hopkinson torsion bar device is shown in Fig. Hopkinson torsion bar setup. Its main components include traditional Hopkinson compression rod 1, T-shaped torsion waveguide rod 2, dynamic load separator 3, torsion incident rod 4, test piece 5, torsion transmission rod 6, support bearing 7, etc.

[0019] The Hopkinson compression bar 1 is connected to the torsion incident bar 4 through the T-shaped torsion waveguide bar 2, and the T-shaped torsion waveguide bar 2 and the torsion incident bar 4 are connected through a horizontally arranged dynamic load separator 3, and the torsion incident bar 4 passes thr...

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Abstract

The invention provides a T-shaped Hopkinson torsion bar device and relates to the field of material dynamic mechanical property experimental equipment. The T-shaped Hopkinson torsion bar device comprises a Hopkinson pressure bar and is characterized in that the Hopkinson pressure bar is connected with a torsion incidence bar by a T-shaped torsion waveguide bar; the T-shaped torsion waveguide bar is connected with the torsion incidence bar by a dynamic load separator which is horizontally arranged; and the T-shaped Hopkinson torsion bar device also comprises a torsion transmission bar which is arranged coaxially with the torsion incidence bar. The T-shaped Hopkinson torsion bar device provided by the invention can be used for a dynamic torsion experiment of a material, has good experimental stability, overcomes the defects of inconvenience for operation and easiness for failure of the experiment of a conventional experimental device, greatly improves experiment efficiency and improves repeatability of the waveform experimental conditions.

Description

Technical field: [0001] The invention relates to the field of experimental equipment for dynamic mechanical properties of materials, in particular to a T-shaped Hopkinson torsion bar device. Background technique: [0002] Split Hopkinson rod is an effective experimental device for studying the dynamic mechanical properties of materials under one-dimensional stress state. Since Kolsky invented the separate Hopkinson compression rod device in 1949 and used it to study the dynamic mechanical properties of materials under one-dimensional stress state, the dynamic compression experiment technology has been continuously improved. For some materials, their dynamic tensile properties are more important than their dynamic compressive properties. However, due to the high complexity of dynamic stretching equipment, although the separate Hopkinson tie rod has made great progress, there is still no ideal experimental equipment for studying the dynamic tensile properties of materials. S...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/26
Inventor 姜锡权肖桂凤方文敏叶艾房凌晖周迎春郑翔玉张开闩
Owner 中国人民解放军陆军军官学院
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