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Electromagnetic tension, compression and torsion microsecond synchronizing combined dynamic loading experimental device

An experimental device and dynamic loading technology, applied in measurement devices, using stable torsion to test material strength, and using stable tension/pressure to test material strength, etc., can solve problems such as difficulty in achieving synchronization, and achieve a higher level of synchronization Effect

Pending Publication Date: 2018-08-10
合肥姜水动态力学实验技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the combination of dynamic tension / compression and torsional loads is currently difficult to synchronize

Method used

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  • Electromagnetic tension, compression and torsion microsecond synchronizing combined dynamic loading experimental device
  • Electromagnetic tension, compression and torsion microsecond synchronizing combined dynamic loading experimental device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as figure 1 As shown, an electromagnetic tension, compression and torsion microsecond-level synchronous joint dynamic loading experimental device, including:

[0024] A time distributor 1, the time distributor 1 is connected to a high-power constant current source 2, and the time distributor 1 controls the start-up time of the power supply circuit of the electromagnetic driver 3 and the microsecond-level pulse motor 7 through the high-power constant current source 2 ;

[0025] A high-power constant current source 2 is connected to the control electromagnetic driver 3 and the microsecond-level pulse motor 7 and supplies power to it;

[0026] A test piece 5, the two ends of the test piece 5 are respectively connected to one end of the incident rod 4 and one end of the transmission rod 6;

[0027] The electromagnetic driver 3 is connected to the other end of the incident rod 4. The electromagnetic driver 3 generates a longitudinal wave after the current of the high-...

Embodiment 2

[0032] Such as figure 1 , figure 2 As shown, an electromagnetic tension, compression and torsion microsecond-level synchronous joint dynamic loading experimental device, including:

[0033] Time distributor 1, time distributor 1 is connected to high-power constant current source 2, time distributor 1 controls the power supply circuit start time of electromagnetic driver 3 and microsecond pulse motor 7 through high-power constant current source 2; The flow source 2 is connected to the electromagnetic driver 3 and the microsecond pulse motor 7 and supplies power to it; the two ends of the specimen 5 are respectively connected to one end of the incident rod 4 and one end of the transmission rod 6; the electromagnetic driver 3 is connected to the other end of the incident rod 4, and the electromagnetic The driver 3 generates a longitudinal wave after the current of the high-power constant current source 2 is turned on, and the longitudinal wave is transmitted to the incident rod...

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PUM

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Abstract

The invention provides an electromagnetic tension, compression and torsion microsecond synchronizing combined dynamic loading experimental device, and relates to the field of material dynamic mechanical performance experimental devices. The device comprises: a time distributor, wherein the time distributor is connected to a high-power constant current source, and the time distributor controls theturn-on time of a power supply circuit for an electromagnetic driver and a microsecond pulse motor through the high-power constant current source; the high-power constant current source which is connected to and powers up the electromagnetic driver and the microsecond pulse motor; a test piece, wherein two ends of the test piece are respectively connected to one end of an incident rod and one endof a transmission rod; the electromagnetic drive connected to the other end of the incident rod; and the microsecond pulse motor connected to the other end of the transmission rod. A tension / compression pulse and a torsion pulse are independently propagated in the rod, and can be respectively measured, and the mechanical behaviors of the material under first tension / compression and then torsion and first torsion and then tension / compression loading conditions are obtained through adjusting the arrival times of the tension / compression pulse and the tension / compression pulse in order to obtain different stress states.

Description

technical field [0001] The invention relates to the field of experimental equipment for dynamic mechanical properties of materials, in particular to an electromagnetic pull, compress and torsion microsecond-level synchronous joint dynamic loading experiment device. Background technique [0002] The mechanical behavior of materials is the basis for all structural designs, and the mechanical behavior of some materials under dynamic (explosion, impact) conditions is significantly different from that under quasi-static conditions. On the other hand, the mechanical behavior of a material is closely related to its stress state. [0003] Split Hopkinson tension and compression rods are an effective experimental setup for studying the dynamic mechanical properties of materials under one-dimensional stress state. Since Volterra in 1948 and Kolsky in 1949 invented the separate Hopkinson compression rod device and used it to study the dynamic compression mechanical properties of mater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/08G01N3/22
CPCG01N3/08G01N3/22G01N2203/005G01N2203/0055
Inventor 姜锡权
Owner 合肥姜水动态力学实验技术有限公司