CN206648902U - A kind of plane detonation loading experimental apparatus based on hot spot-effect - Google Patents
A kind of plane detonation loading experimental apparatus based on hot spot-effect Download PDFInfo
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- CN206648902U CN206648902U CN201720387466.0U CN201720387466U CN206648902U CN 206648902 U CN206648902 U CN 206648902U CN 201720387466 U CN201720387466 U CN 201720387466U CN 206648902 U CN206648902 U CN 206648902U
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Abstract
A kind of plane detonation loading experimental apparatus based on hot spot-effect provided by the utility model, belongs to dynamic load experimental technique field.Mainly solving the problems, such as can not be to the dynamic load of the large scale test specimen such as true concrete and reinforced concrete.Including housing, base and top cover, it is characterized in：The housing is tightly connected with base and top cover, and test specimen is placed on base, is placed with needle plate on the top of test specimen, the row's of being provided with pin on the needle plate；Explosive device is provided with above needle plate, the explosive device is arranged at the remote control safety lock locking on housing, it is not fallen, and when being remotely controlled safety lock opening, the explosive device can free-falling；Manual safety lock is provided with the middle part of housing；The bleeding point for vacuumizing is provided with top cover；Some test points and test sensing device are provided with test specimen, the test sensing device is connected by the test device of p-wire and hull outside.Simple in construction, easy to operate, cost is relatively low.
Description
Technical field
The utility model belongs to dynamic load experimental technique field, and in particular to a kind of plane detonation based on hot spot-effect
Loading experimental apparatus.
Background technology
Split Hopkinson bar (SHPB) and light-gas gun are two kinds of more conventional at present dynamic loading experiment means, by
It is widely applied among the dynamic characteristics research of metal, rock and composite etc..To concrete and reinforced concrete
Dynamic compression properties research in, it is found that the size for the test specimen that existing SHPB and light-gas gun can be loaded is too small, can not
Realize the dynamic load to the large scale test specimen such as true concrete and reinforced concrete.If doing scale model experiment, but very
Difficulty meets scaled down and material identical condition, and obtained experimental data authenticity is necessarily affected.Want to solve
Problems, basic method are the large-sized experiment loading means of development, and directly the large scale such as true concrete test specimen is carried out
Loading, such obtained experimental data are just more true and reliable.
It is a kind of loading means to grow up very early to change quick-fried loading technique, the quick-fried loading technique of being of plane wave generator
In an important component, its design of Huygen's principle in light wave propagation, with the method for adjusting high and low detonation-rate explosive,
The sphere detonation wave of point initiation is finally transformed into plane detonation, meets dynamic loading needs.It has developed both at home and abroad various
Plane wave generator, the work of China Engineering Physics Research Institute is representative, but the difficulty of processing of plane wave generator is big,
Cost of manufacture is higher, is not easily applicable among the Research of dynamic mechanical of concrete and reinforced concrete material.
The material that develops into of most basic means of the experiment as research material mechanical characteristic, its supporting technology and equipment moves
One of deciding factor of state mechanical property research.The dynamic of large-size concrete or armored concrete test specimen is added to realize
Carry, it is necessary to carry out large scale loading technique research.
If choosing explosive as driving force, a kind of method is on the premise of film flying flatness is ensured, first with explosive
The large-sized metal film flying of explosion driving, then dynamic load is carried out to true concrete sample with High Speed Flyer, complete and light gas
Big gun identical loads effect.Peaceful foundation, Luan Guangbo and post of Beijing Institute of Technology etc. utilize multistage detonation of explosive driving taper
Metal film flying, has carried out the Primary Study work of large scale loading experiment, and load mode is entirely different with this patent.
Another method is exactly that directly large scale material test specimen is loaded using explosive, but generally can only be
Material internal produces the shock wave of triangle, and experimental data is difficult measure, and results contrast is discrete.N.Gebbeken、
S.Greulich and A.Pietzsch realizes the triangle shock wave loading to true concrete under the mode of point initiation, obtains
The when m- pressure curve arrived at different depth.
The content of the invention
Hot spot-effect of the utility model based on explosive, detonated and be combined simultaneously by percussion and multiple focuses, it is real
Existing almost plane detonation, is loaded directly into concrete material test specimen in itself by plane wave caused by explosive charge, realizes and light gas
Big gun identical uniaxial train square wave loads, and pressure is big, strain rate is high, and the concrete material sample dimensions that can be loaded increase
Add, original will continue to be applicable suitable for the data collecting system in the case of uniaxial train and Data Management Analysis method.
The utility model adopts the technical scheme that to solve above-mentioned technical problem：
A kind of plane detonation loading experimental apparatus based on hot spot-effect, including housing, base and top cover, are characterized in：
The housing is tightly connected with base and top cover, and test specimen is placed on base, and needle plate, the pin are placed with the top of test specimen
The row's of being provided with pin on plate；Explosive device is provided with above needle plate, the remote control that the explosive device is arranged on housing is protected
Danger lock locking, makes it not fall, and when being remotely controlled safety lock opening, the explosive device can free-falling；Set in the middle part of housing
It is equipped with manual safety lock；The bleeding point for vacuumizing is provided with top cover；Some test points and survey are provided with test specimen
Sensing device on probation, the test sensing device are connected by the test device of p-wire and hull outside.
The utility model compared with prior art, has the advantages that：
Hot spot-effect of the utility model based on explosive, simple in construction, easy to operate, explosive is again relatively cheap in itself, phase
Than light-gas gun loading and plane wave generator loading, cost greatly reduces.Specific advantage is as follows：
(1) explosive is chosen as driving force, the hot spot-effect based on explosive, is risen simultaneously using percussion and multiple focuses
Quick-fried mode, realize that almost plane detonates, the loading of uniaxial train square wave is internally formed in material test specimen.
(2) size for the concrete material test specimen that the experimental provision that this patent is related to can load does not limit, and can break through
Restriction of traditional SHPB and light-gas gun loading experiment means to material test specimen size, the reality for concrete material equidimension effect
Test research.
(3) explosive directly acts on material test specimen, the pressure that material internal is formed is bigger, strain rate is higher.
(4) package unit is simple in construction, easy to operate, and cost is relatively low, the experimental study available for different materials.
Brief description of the drawings
Fig. 1 is the utility model structure diagram.
In figure：1-explosive device；2-remote control safety lock；3-manual safety is locked；4-needle plate；4-1-row's pin；5-examination
Part；6-base；7-test device；8-p-wire；9-housing；10-top cover；11-bleeding point.
Embodiment
As shown in figure 1, a kind of plane detonation loading experimental apparatus based on hot spot-effect, including housing 9, base 6 and top
Lid 10, is characterized in：The housing 9 is tightly connected with base 6 and top cover 10, test specimen 5 is placed on base 6, in test specimen 5
Top is placed with needle plate 4, the row of being provided with pin 4-1 on the needle plate 4；Explosive device 1 is provided with the top of needle plate 4, it is described fried
The remote control safety lock 2 that medicine device 1 is arranged on housing 9 locks, and it is not fallen, described fried when being remotely controlled the opening of safety lock 2
Medicine device 1 can free-falling；Manual safety lock 3 is provided with the middle part of housing 9；It is provided with top cover 10 for vacuumizing
Bleeding point 11；Some test points and test sensing device are provided with test specimen 5, the test sensing device passes through test
Line 8 is connected with the test device 7 of hull outside.
Principle and the course of work：
The utility model by base 6 in use, be placed in operation field, then test specimen 5 is placed on base 6 first；Pass through
Explosive device 1 is placed in the top of housing 9 by remote control safety lock 2, and finally housing 9 is covered on base 6, and seals；
Pickup wire on test specimen 5 is connected with p-wire 8, and wire is sealed through housing position；
Top cover 10 is fastened on to the top of housing 9, and sealed, will be vacuumized by bleeding point 11 in housing 9；
Before test starts, first manual safety lock 3 is opened, operating personnel are withdrawn to safety zone, open remote control safety lock
2, due to being vacuum in housing 9, now, explosive device 1 is freely fallen, and is contacted when the lower surface of explosive device 1 with row pin 4-1
Moment, based on hot spot-effect, explosive device 1 is ignited, and using percussion and multiple focuses, detonation mode, realization are approximate flat simultaneously
Face is detonated, and the loading of uniaxial train square wave is internally formed in material test specimen.Test device 7 is by the data record of each sensor and display
Out.
Claims (1)
1. a kind of plane detonation loading experimental apparatus based on hot spot-effect, including housing (9), base (6) and top cover (10),
It is characterized in that：The housing (9) is tightly connected with base (6) and top cover (10), and test specimen (5) is placed on base (6), is being tried
The top of part (5) is placed with needle plate (4), the row's of being provided with pin (4-1) on the needle plate (4)；It is provided with above needle plate (4) fried
Medicine device (1), the explosive device (1) are arranged at remote control safety lock (2) locking on housing (9), it is not fallen, when distant
When controlling safety lock (2) opening, the explosive device (1) can free-falling；Manual safety lock is provided with the middle part of housing (9)
(3)；The bleeding point (11) for vacuumizing is provided with top cover (10)；Some test points and survey are provided with test specimen (5)
Sensing device on probation, the test sensing device are connected by p-wire (8) with the test device (7) of hull outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720387466.0U CN206648902U (en) | 2017-04-13 | 2017-04-13 | A kind of plane detonation loading experimental apparatus based on hot spot-effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201720387466.0U CN206648902U (en) | 2017-04-13 | 2017-04-13 | A kind of plane detonation loading experimental apparatus based on hot spot-effect |
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| CN206648902U true CN206648902U (en) | 2017-11-17 |
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| CN201720387466.0U Expired - Fee Related CN206648902U (en) | 2017-04-13 | 2017-04-13 | A kind of plane detonation loading experimental apparatus based on hot spot-effect |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106932286A (en) * | 2017-04-13 | 2017-07-07 | 太原科技大学 | A kind of plane detonation loading experimental apparatus based on hot spot-effect |
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2017
- 2017-04-13 CN CN201720387466.0U patent/CN206648902U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106932286A (en) * | 2017-04-13 | 2017-07-07 | 太原科技大学 | A kind of plane detonation loading experimental apparatus based on hot spot-effect |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171117 Termination date: 20190413 |
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| CF01 | Termination of patent right due to non-payment of annual fee |