CN203025057U - High-speed loading material dynamic indentation experiment device - Google Patents
High-speed loading material dynamic indentation experiment device Download PDFInfo
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- CN203025057U CN203025057U CN 201220680223 CN201220680223U CN203025057U CN 203025057 U CN203025057 U CN 203025057U CN 201220680223 CN201220680223 CN 201220680223 CN 201220680223 U CN201220680223 U CN 201220680223U CN 203025057 U CN203025057 U CN 203025057U
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- speed
- dynamic indentation
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Abstract
The utility model discloses a high-speed loading material dynamic indentation experiment device, which is characterized by comprising a pill, a pill emitting device, a pressure lever, an ultra-dynamic strain gauge, a digital oscilloscope and a computer processing system, wherein a strain foil is pasted on the pressure lever, the strain foil is electrically connected with the ultra-dynamic strain gauge, the front end face of the pressure lever is provided with a test piece, the pill emitting device is fixed in front of the test piece, and a light-triggered speed measuring device is arranged between the pill emitting device and the test piece. The high-speed loading material dynamic indentation experiment device has the advantage of being capable of testing the dynamic mechanical properties (such as press-in force, press-in speed and time interval of press-in displacement) of the test piece in a process of being impacted, so as to deeply research the dynamic mechanical properties of the material; the high-speed loading material dynamic indentation experiment device is suitable for higher impact speed, and the impact speed can be to 100m/s; and moreover, the whole experiment device is high in measurement accuracy and simple in structure.
Description
Technical field
The utility model relates to a kind of experimental provision of MATERIALS ' DYNAMIC characteristic, relates in particular to a kind of High speed load MATERIALS ' DYNAMIC indentation test device.
Background technology
The mechanical behavior of construction material is subject to the obvious impact of its stress state, and under Dynamic Loading Condition, the mechanical behavior of material is more relevant to the speed that loads (concrete tolerance is rate of strain).The material hardness experiment is the extensively method of testing of the material mechanical performance of employing of engineering circles, it is simply effective, instrumentation impression, nano-indentation experiment technology are further developing of the hard justice measurement of tradition, can record the distortion of process of press in and stressed, but prior art only limits to the static properties test of material.Although experimental technique that employing dynamically is pressed into such as common Richter scale, Shore hardness tester etc. are also arranged, and they only have pro forma " dynamically ", can not really record the dynamic characteristics of material.
And the dynamic pressure trace experiment under high-speed loading environment, basically be directly to adopt the tested thing of projectile impact at present, then the dynamic mechanical that the depth of cup after finishing by shock and muzzle velocity are estimated measured material, it can't record the dynamic characteristics of material in the process of being impacted.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of High speed load MATERIALS ' DYNAMIC indentation test device that records the dynamic characteristics of material in being subjected to High-speed Impact Process.
the utility model solves the problems of the technologies described above the technical scheme that adopts: a kind of High speed load MATERIALS ' DYNAMIC indentation test device, comprise bullet, projectile transmitting device, the depression bar of circular section, high dynamic strain indicator, digital oscilloscope and computer processing system, be pasted with foil gauge on described depression bar, described foil gauge is electrically connected to described high dynamic strain indicator, described high dynamic strain indicator and described computer processing system are electrically connected to described digital oscilloscope respectively, the front end end face of described depression bar is fixedly installed columniform test specimen, described projectile transmitting device is fixedly installed on the place ahead of described test specimen, be provided with light between described projectile transmitting device and described test specimen and trigger speed measuring device.
The diameter of described bullet is 1～2mm, and the diameter of described test specimen is more than or equal to 4 times of described bullet diameter, and the thickness of described test specimen is more than or equal to 2 times of described bullet diameter.
Described light triggers speed measuring device and comprises triggering timing device, two laser tubes that are arranged side by side and two positions and described laser tube corresponding photosensitive tube up and down, described photosensitive tube is positioned at the below of described laser tube, and described photosensitive tube is electrically connected to described triggering timing device.
The material of described bullet is wimet, as tungsten carbide.
Described projectile transmitting device is the high pressure gas big gun.
The tail end of described depression bar is fixedly installed energy absorbent block, and the material of described energy absorbent block is plumbous, and is damaged in the process of clashing into to prevent depression bar.
Compared with prior art, the utility model has the advantages that by this experimental provision and can record the dynamic characteristics of test specimen in the process of being impacted (as: pressing-in force, press-in speed and be pressed into the time-histories of displacement), so that the dynamic mechanical of research material more in depth, and this device is applicable to higher impact velocity, and its impact velocity can reach 100m/s; In addition, whole experimental provision measuring accuracy is high, and simple in structure.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Embodiment is described in further detail the utility model below in conjunction with accompanying drawing.
as shown in the figure, a kind of High speed load MATERIALS ' DYNAMIC indentation test device, comprise high pressure gas big gun 1, material is the bullet 2 of wimet, the depression bar 3 of circular section, high dynamic strain indicator 4, digital oscilloscope 5 and computer processing system 6, be pasted with foil gauge 31 on depression bar 3, foil gauge 31 is electrically connected to high dynamic strain indicator 4, high dynamic strain indicator 4 and computer processing system 6 are electrically connected to digital oscilloscope 5 respectively, the front end end face of depression bar 3 is fixedly installed columniform test specimen 7, high pressure gas big gun 1 is fixedly installed on the place ahead of test specimen 7, be provided with light between high pressure gas big gun 1 and test specimen 7 and trigger speed measuring device, light triggers speed measuring device and comprises triggering timing device 10, two laser tubes that are arranged side by side 8 and two positions and laser tube corresponding photosensitive tube 9 Shang Xia 8, photosensitive tube 9 is positioned at the below of laser tube 8, photosensitive tube 9 is electrically connected to triggering timing device 10, the tail end of depression bar 3 is fixedly installed material and is plumbous energy absorbent block 32.
In above-described embodiment, the diameter of bullet 2 can be selected in the scope of 1～2mm, and the diameter of test specimen 7 is more than or equal to 4 times of bullet 2 diameters, and the thickness of test specimen 7 is more than or equal to 2 times of bullet 2 diameters.
Claims (6)
1. High speed load MATERIALS ' DYNAMIC indentation test device, it is characterized in that comprising bullet, projectile transmitting device, the depression bar of circular section, high dynamic strain indicator, digital oscilloscope and computer processing system, be pasted with foil gauge on described depression bar, described foil gauge is electrically connected to described high dynamic strain indicator, described high dynamic strain indicator and described computer processing system are electrically connected to described digital oscilloscope respectively, the front end end face of described depression bar is fixedly installed columniform test specimen, described projectile transmitting device is fixedly installed on the place ahead of described test specimen, be provided with light between described projectile transmitting device and described test specimen and trigger speed measuring device.
2. a kind of High speed load MATERIALS ' DYNAMIC indentation test device as claimed in claim 1, the diameter that it is characterized in that described bullet is 1～2mm, the diameter of described test specimen is more than or equal to 4 times of described bullet diameter, and the thickness of described test specimen is more than or equal to 2 times of described bullet diameter.
3. a kind of High speed load MATERIALS ' DYNAMIC indentation test device as claimed in claim 1, it is characterized in that described light triggers speed measuring device and comprises triggering timing device, two laser tubes that are arranged side by side and two positions and described laser tube corresponding photosensitive tube up and down, described photosensitive tube is positioned at the below of described laser tube, and described photosensitive tube is electrically connected to described triggering timing device.
4. a kind of High speed load MATERIALS ' DYNAMIC indentation test device as claimed in claim 1, the material that it is characterized in that described bullet is wimet.
5. a kind of High speed load MATERIALS ' DYNAMIC indentation test device as claimed in claim 1, is characterized in that described projectile transmitting device is the high pressure gas big gun.
6. a kind of High speed load MATERIALS ' DYNAMIC indentation test device as claimed in claim 1, is characterized in that the tail end of described depression bar is fixedly installed energy absorbent block, and the material of described energy absorbent block is plumbous.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220680223 CN203025057U (en) | 2012-12-07 | 2012-12-07 | High-speed loading material dynamic indentation experiment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220680223 CN203025057U (en) | 2012-12-07 | 2012-12-07 | High-speed loading material dynamic indentation experiment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203025057U true CN203025057U (en) | 2013-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220680223 Expired - Fee Related CN203025057U (en) | 2012-12-07 | 2012-12-07 | High-speed loading material dynamic indentation experiment device |
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| CN (1) | CN203025057U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113049414A (en) * | 2021-03-09 | 2021-06-29 | 中车青岛四方机车车辆股份有限公司 | High-speed offset impact performance testing device and method for train energy absorption test piece |
-
2012
- 2012-12-07 CN CN 201220680223 patent/CN203025057U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113049414A (en) * | 2021-03-09 | 2021-06-29 | 中车青岛四方机车车辆股份有限公司 | High-speed offset impact performance testing device and method for train energy absorption test piece |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20161207 |