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Dynamic tension/compression and torsion synchronous joint loading experimental device

A loading device and combined loading technology, applied in the direction of using stable tension/pressure to test material strength, using stable torsion force to test material strength, etc., can solve problems such as difficulty in recording incident waves

Inactive Publication Date: 2017-05-24
赵江霞 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the biggest drawback of this method is that it is difficult to record the incident wave loaded and the reflected wave reflected from the specimen

Method used

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  • Dynamic tension/compression and torsion synchronous joint loading experimental device

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Embodiment Construction

[0016] 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.

[0017] Such as figure 1 As shown, a dynamic tension and torsion synchronous joint loading experimental device includes a transmission rod 2 and an incident rod 4 arranged on a rolling support 1, a test piece 3 is installed between the transmission rod 2 and the incident rod 4, and the incident rod 4 is set There is a torsional wave loading device 5 and a tension wave loading device 6, the distance between the tension wave loading device 6 and the end of the incident rod 4 where the test piece 3 is installed is greater than the distance between the torsional wave loading device 5 and the end of the incident rod 4 where the test piece 3 is ...

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Abstract

The invention provides a dynamic pull / pressing and torsion synchronous combined loading experiment device, and relates to the field of dynamic mechanical property experiment of materials. The dynamic pull / pressing and torsion synchronous combined loading experiment device comprises a transmission rod and an incidence rod which are arranged on a rolling support, wherein a test piece is mounted between the transmission rod and the incidence rod; a torsion wave loading device and a tension / compression wave loading device are arranged on the incidence rod; the distance between the tension / compression wave loading device and the end where the test part is mounted on the incidence rod is greater than that of the a torsion wave loading device and the end where the test part is mounted on the incidence rod; the tension / compression wave loading device and the torsion wave loading device are respectively connected with a controller through signal circuits. The dynamic pull / pressing and torsion synchronous combined loading experiment device is applied to dynamic mechanical property research on materials, the defects of a conventional Hopkinson pull rod can be avoided, the test part can be simultaneously loaded with tension / compression waves and torsion waves, the loaded tension / compression waves and torsion waves can simultaneously reach the test part, and meanwhile loaded incidence waves and reflection waves reflected from the test part can be also recorded, so that the experimental requirements of dynamic mechanical property research on materials can be met.

Description

technical field [0001] The invention relates to the field of experimental equipment for dynamic mechanical properties of materials, in particular to an experimental device for synchronous combined loading of dynamic tension / compression and torsion. 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. The separate Hopkinson tie rod is one of the main equipments currently used for the research on the dynamic tensile mechanical properties of materials. The dynamic shear resistance of materials is one of its dynamic mechanical properties, and its experimental research is relatively difficult. At pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/08G01N3/22
Inventor 赵江霞孙贵文
Owner 赵江霞
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