CN205562308U - Hopkinson is pressed and is drawn continuous loading experiment device - Google Patents
Hopkinson is pressed and is drawn continuous loading experiment device Download PDFInfo
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- CN205562308U CN205562308U CN201620328974.7U CN201620328974U CN205562308U CN 205562308 U CN205562308 U CN 205562308U CN 201620328974 U CN201620328974 U CN 201620328974U CN 205562308 U CN205562308 U CN 205562308U
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Abstract
The utility model provides a hopkinson is pressed and is drawn continuous loading experiment device relates to material dynamic response measurement field, include: the striking bullet, waveform shaper, wave form adjust the pole, the incident bar, the collection equipment no. 1 that meets an emergency, the collection equipment no. 2 that meets an emergency, the sample, the transmission bar, its characterized in that: striking bullet, waveform shaper, wave form regulation pole are coaxial with the incident bar, and the striking bullet lies in the wave form and adjusts the pole left end, and the pole left end is adjusted to the wave form has a waveform shaper, and the wave form is adjusted the pole position and is lain in between incident bar and the transmission bar in incident bar left end, sample, and meet an emergency collection equipment no. 1 and the collection equipment no. 2 that meets an emergency place in respectively on incident bar and the transmission bar. The wave form is adjusted the pole and is made for different wave impedance materials, can realize transmission and the reflection of stress wave between different material parts.
Description
[technical field]
This utility model belongs to In Dynamic Testing of Materials field, and particularly a kind of Hopkinson pressure is drawn even
Continuous loading experimental apparatus.
[background technology]
In recent years, the dynamic response characteristic of material causes the concern of numerous research, especially relates to car hit
Hit, tsunami earthquake, bombing raid, aviation launch when the impact loading that causes become material
Focus in energy research topic.These shock loadings all can be produced by clashing into bullet, then by sample two ends
Input just can get the dynamic mechanical of material with output adaptability to changes waveform acquisition.But, most operating modes are not
Only comprising tensile load and include compression etc., even continuous print loads, therefore by single load or single
Loading is measured the data obtained down and can not be represented material response in these operating modes, designs protection works
Lack actual directive significance.
[summary of the invention]
The purpose of this utility model is to overcome the deficiency of existing loading technique, it is provided that a kind of Hopkinson pressure is drawn
Continuously loading experimental apparatus, carries out MATERIALS ' DYNAMIC pressure draw the demand of continuous loading experiment to meet.
Problem Technical to be solved in the utility model realizes by the following technical solutions:
This experimental provision includes: clashing into bullet, waveform shaper, waveform adjustment bar, incident bar, strain is adopted
Collection equipment, sample, transmission bar, described shock bullet, waveform shaper, waveform adjustment bar are same with incident bar
Axle, knockson sticking position has waveform shaper, waveform adjustment in waveform adjustment bar left end, waveform adjustment bar left end
Bar is positioned at incident bar left end, sample between incident bar and transmission bar, strain acquirement equipment be placed in incident bar with
On transmission bar.
Described waveform adjustment bar is made for different natural impedance materials, can reach stress wave different materials parts it
Between the effect of constantly transmission and reflection.
The necessary long enough of the length of different natural impedance parts in described waveform adjustment bar so that loading wave is at waveform
Propagation time in adjusting rod upper-part is more than the cycle of original loading wave, it is ensured that Loaded contact analysis does not haves weight
Folded.
Described incident bar and waveform adjustment bar, sample strong bonded, can pass through to be mechanically connected or bonding connection,
Depending on the concrete connected mode intensity according to institute's test sample.
Described sample is in close contact with transmission bar with incident bar, and the ratio of length and diameter is preferably at 0.3-1
In the range of.
In described waveform adjustment bar, different natural impedance part count, can be single part, but need and incident bar,
Transmission bar natural impedance is inconsistent, and the loading condition simulated as required sets.
[accompanying drawing explanation]
Below in conjunction with the accompanying drawings this utility model is further described.
Fig. 1 is the overall structure schematic diagram that this utility model a kind of Hopkinson pressure draws continuous loading experimental apparatus.
Fig. 2 is the knot that this utility model a kind of Hopkinson pressure draws the waveform adjustment bar of continuous loading experimental apparatus
Structure schematic diagram.
Wherein:
1-clashes into bullet, 2-waveform adjustment bar, 3-incident bar, 4-sample, 5-transmission bar, 6-waveform shaping
Device, 7-strain acquirement equipment one, 8-strain acquirement equipment two.
[detailed description of the invention]
For the technological means making this utility model realize, creation characteristic, achieve the goal and effect is readily apparent from
Understand, below in conjunction with specific embodiments and the drawings, this utility model is expanded on further, but is not intended to limit
Protection domain of the present utility model.
As depicted in figs. 1 and 2, a kind of Hopkinson pressure draws continuous loading experimental apparatus, as a whole,
It has clashes into bullet 1, waveform adjustment bar 2, incident bar 3, sample 4, transmission bar 5, waveform shaper 6,
Strain acquirement equipment 1, strain acquirement equipment 28.Wherein clash into bullet 1, waveform shaper 6 for loading
Control module, incident bar 3 and transmission bar 5 are that the transmission of sample 4 two ends loads and the carrier measured, and strain is adopted
Integrate equipment 1 with strain acquirement equipment 28 as part of data acquisition, and the purpose of waveform adjustment bar 2 is main
For waveform adjustment, there is reflection and the transmission of stress wave by end face between the different natural impedance material of utilization, therefore
And original stress-wave loading is divided into two, the stress wave then formed is at next different natural impedance materials
Between material, end face continues reflection and transmission, then creates more waveform, and each waveform is at waveform adjustment bar 2
Between the interface of upper different materials parts, reflection with transmission thus defines continuous print pressure and draws Loaded contact analysis repeatedly.
When loading for the first time, part loading wave is directly projected to incident bar 3, sample 4, and when the stress being reflected back
When ripple returns to waveform adjustment bar 2 with waveform shaper 6 contact jaw, incidence can be transmitted to by end face reflection again
Bar 3, sample 4 direction, until continuing again transmission and reflection between different natural impedance material after end face, thus logical
Crossing multiple reflections and the transmission of waveform adjustment bar 2, incident bar 3 end will accept continuous stress wave to some extent
And it is transmitted to sample 4, it is achieved in the pressure of sample 4 is drawn continuous loading procedure.
This utility model is narration part, the dynamic source such as clashing into bullet 1 controls, test specimen 4 and incident bar 3,
Connection equipment, the setting of waveform shaper 6, the process of signal data and incident bar 3 between transmission bar 5
Support with transmission bar 5 is the most ripe prior art, does not remake carefully introduction at this.
The beneficial effects of the utility model: the propagation law of Appropriate application stress wave realizes pressure continuously and draws loading,
Simple in construction, easy to use.
It addition, embodiment of the present utility model is the example representing content of the present utility model, one can be entered
Step combines with other known technology, it is also possible to without departing from omitting one in the range of purport of the present utility model
Part etc. carries out changing constituting.
Finally should be noted that: above example is only in order to illustrate the technical solution of the utility model rather than right
It limits；Although this utility model being described in detail with reference to preferred embodiment, art general
Detailed description of the invention of the present utility model still can be modified or right by logical skilled artisans appreciate that
Portion of techniques feature carries out equivalent；Without deviating from the spirit of technical solutions of the utility model, it all should be contained
Cover in the middle of the technical scheme scope that this utility model is claimed.
Claims (4)
1. Hopkinson pressure draws a continuous loading experimental apparatus, it is characterized by: include clashing into bullet (1), waveform
Adjusting rod (2), incident bar (3), sample (4), transmission bar (5), waveform shaper (6),
Strain acquirement equipment one (7), strain acquirement equipment two (8), described shock bullet (1), waveform
Reshaper (6), waveform adjustment bar (2) are coaxial with incident bar (3), clash into bullet (1) and are positioned at ripple
Shape adjusting rod (2) left end, waveform adjustment bar (2) left end has waveform shaper (6), waveform adjustment
Bar (2) is positioned at incident bar (3) left end, and sample is positioned between incident bar (3) and transmission bar (5),
Strain acquirement equipment one (7) and strain acquirement equipment two (8) are respectively placed on incident bar and transmission bar.
The most according to claim 1, a kind of Hopkinson pressure draws continuous loading experimental apparatus, it is characterized by: described ripple
Shape adjusting rod (2) is made for different natural impedance materials, can realize stress wave between different materials parts not
Disconnected transmission and reflection.
The most according to claim 1, a kind of Hopkinson pressure draws continuous loading experimental apparatus, it is characterized by: described ripple
The necessary long enough of the length of different natural impedance parts in shape adjusting rod (2) so that loading wave is in waveform adjustment
Propagation time in bar (2) upper-part is more than the cycle of original loading wave, it is ensured that Loaded contact analysis does not haves
Overlapping.
The most according to claim 1, a kind of Hopkinson pressure draws continuous loading experimental apparatus, it is characterized by: described in enter
Rhizoma Belamcandae (3) and waveform adjustment bar (2), sample strong bonded, described sample and incident bar (3) and transmission bar (5)
It is in close contact, can be by being mechanically connected or bonding connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620328974.7U CN205562308U (en) | 2016-04-13 | 2016-04-13 | Hopkinson is pressed and is drawn continuous loading experiment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620328974.7U CN205562308U (en) | 2016-04-13 | 2016-04-13 | Hopkinson is pressed and is drawn continuous loading experiment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205562308U true CN205562308U (en) | 2016-09-07 |
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ID=56808426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620328974.7U Expired - Fee Related CN205562308U (en) | 2016-04-13 | 2016-04-13 | Hopkinson is pressed and is drawn continuous loading experiment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205562308U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107356487A (en) * | 2017-08-22 | 2017-11-17 | 中国工程物理研究院化工材料研究所 | High overload loading device based on stress wave multiple reflections under high explosive effect |
| CN111948074A (en) * | 2020-07-29 | 2020-11-17 | 山东威雅苏扬防护科技有限公司 | Hopkinson bar-based continuous multiple equal pulse width collision impact test device and test method |
| CN112903229A (en) * | 2018-12-24 | 2021-06-04 | 西北工业大学 | Loading device and loading method |
-
2016
- 2016-04-13 CN CN201620328974.7U patent/CN205562308U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107356487A (en) * | 2017-08-22 | 2017-11-17 | 中国工程物理研究院化工材料研究所 | High overload loading device based on stress wave multiple reflections under high explosive effect |
| CN107356487B (en) * | 2017-08-22 | 2023-05-02 | 中国工程物理研究院化工材料研究所 | High overload loading device based on stress wave multiple reflection under action of high explosive |
| CN112903229A (en) * | 2018-12-24 | 2021-06-04 | 西北工业大学 | Loading device and loading method |
| CN112903229B (en) * | 2018-12-24 | 2023-07-18 | 西北工业大学 | Loading device and loading method |
| CN111948074A (en) * | 2020-07-29 | 2020-11-17 | 山东威雅苏扬防护科技有限公司 | Hopkinson bar-based continuous multiple equal pulse width collision impact test device and test method |
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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: 20160907 Termination date: 20170413 |