CN106706425A - High-speed compression testing device - Google Patents
High-speed compression testing device Download PDFInfo
- Publication number
- CN106706425A CN106706425A CN201611070142.0A CN201611070142A CN106706425A CN 106706425 A CN106706425 A CN 106706425A CN 201611070142 A CN201611070142 A CN 201611070142A CN 106706425 A CN106706425 A CN 106706425A
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- loading
- base
- experimental rig
- high speed
- speed compression
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/303—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated only by free-falling weight
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
- G01N2203/0039—Hammer or pendulum
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a high-speed compression testing device which is used on a testing machine. The testing machine is provided with a worktable and a loading end for generating an acting force on a test piece to be tested; the testing device comprises a base and a loading chuck; and two ends of the test piece are fixedly connected with the base and the loading chuck respectively. When a high-speed compression test is carried out, the base is arranged on the worktable, and the loading end acts on the loading chuck, so that the loading chuck moves in a direction close to the base and high-speed compression loading on the test piece is realized. The testing device further comprises a measurement unit for testing a compression load on the test piece in a compression loading process. The testing device provided by the invention can be combined with a drop hammer testing machine, and dynamic compression tests under low, middle and high strain rates can be realized. The testing device provided by the invention is simple in structure, low in manufacturing cost and safe and reliable.
Description
Technical field
The invention belongs to material mechanical performance test and representational field, for industries such as automobile, aviations, and in particular to a kind of
High speed compression experimental rig.
Background technology
Surrender and fracture mechanics behavior of the nonmetallic materials such as high polymer under car crass load depend on stretching, pressure
Contracting, shearing iso-stress state.It is necessary to obtain dynamic mechanical behavior of the material under compressing stress state by research technique, uses
To characterize the mechanics constitutive relation of high polymer material.Generally use the quasistatic pressure that electronic universal tester realizes high polymer material
Contracting test, exemplar is placed directly in the work top of equipment, and exemplar each moment is in quasistatic poised state in compression process,
Exemplar compressive load directly carries force sensor measuring with equipment, and for dynamic test, electronic universal tester cannot be used.
For MATERIALS ' DYNAMIC（Strain rate 1-400/s）Compression verification, completes, although drop weight test platform can be real on dropping shock testing stand
Existing dynamic compression impact, but in dynamic impact test, by stress wave action, on load transfer path, diverse location load signal is not
Together, the acceleration or force snesor of equipment tup are because apart from exemplar, farther out, the load signal degree of accuracy of measurement is not high, it is impossible to obtain
Take accurate material properties data.High speed tensile test machine can realize that dynamic tensile is loaded, but cannot be used directly for dynamic compression
Experiment, and high cost.
The content of the invention
The technical problems to be solved by the invention are to overcome the deficiencies in the prior art, there is provided a kind of high speed compression experiment dress
Put.
To solve above technical problem, the present invention is adopted the following technical scheme that：
A kind of high speed compression experimental rig, for testing machine, the testing machine has workbench and for test specimen to be tested
Act the loading end of power, the experimental rig includes base and loading chuck, the two ends of the test specimen respectively with the bottom
Seat and loading chuck are fixedly installed, and when high speed compression experiment is carried out, the base is arranged on the workbench, the loading
End is acted on the loading chuck so that the loading chuck is moved to the direction near the base, is realized to the examination
The high speed compression loading of part, the experimental rig also includes that the compression being subject to for test specimen described in test compression loading procedure is carried
The measuring unit of lotus.
Further, the base includes base body and the connecting clip being vertically arranged on the base body, institute
The one end and the connecting clip for stating test specimen are fixedly installed, the other end is fixedly installed with the loading chuck.
Further, the measuring unit is strain chip measuring unit, the strain of the strain chip measuring unit
Piece is arranged in the connecting clip.
Further, it is respectively provided with the receiving sky for accommodating the test specimen on the connecting clip and loading chuck
Between, the two ends of the test specimen are respectively fixedly disposed in the receiving space.
It is further preferred that the experimental rig is also included for the two ends of the test specimen to be respectively fixedly disposed at into institute
State the fastening assembly in receiving space.The fastening assembly includes to be engaged with the receiving space and described for compressing
The connecting plate of test specimen, and for the connecting plate to be fixedly installed so that the test specimen is fixed on connecting clip and loading chuck
Fastener in the receiving space.
Further, the experimental rig also includes orientation bar assembly, and the orientation bar assembly is described including being arranged on
On base body and the bearing of trend multiple orientation levers consistent with the bearing of trend of the connecting clip, the loading chuck is along institute
The length direction and multiple orientation levers for stating orientation lever are slidably connected.
It is further preferred that the base body has the accommodating chamber for accommodating the connecting clip, the base
Body includes base bottom and is separately positioned on the base sidepiece of the end side surface of the base bottom two, the base sidepiece and base
Bottom surrounds the accommodating chamber jointly, and the connecting clip is fixedly installed on the base bottom and the connecting clip is located at
In the accommodating chamber, multiple orientation levers are separately positioned on the base sidepiece.
Further, it is provided with rubber blanket with the one side of the loading end phase separation on the loading chuck.
Further, the testing machine includes drop hammer tester, high speed tensile test machine.
Due to the implementation of above-mentioned technical proposal, the present invention has the following advantages that compared with prior art：
Experimental rig of the invention is used in combination with drop hammer tester, is capable of achieving the dynamic compression under basic, normal, high different strain rate
Experiment.
Experimental rig simple structure of the invention, low cost of manufacture is safe and reliable.
Brief description of the drawings
Fig. 1 is the stereogram of high speed compression experimental rig of the invention；
Fig. 2 is the stereogram of the loading chuck of high speed compression experimental rig of the invention；
Fig. 3 is the base of high speed compression experimental rig of the invention and the stereogram of orientation lever；；
In figure：1st, base；11st, base body；11a, base bottom；11b, base sidepiece；12nd, connecting clip；12a, connecting portion；
12b, connection clip head；2nd, chuck is loaded；2a, loading clamp head；2b, loading unit；3rd, test specimen；4th, orientation lever；5th, accommodate empty
Between.
Specific embodiment
With reference to Figure of description, the invention will be further described.
The present invention provides a kind of high speed compression experimental rig, and for testing machine, testing machine has workbench and for right
Test specimen to be tested acts the loading end of power, and the testing machine can be high speed tensile test machine, or drop hammer tester.
As shown in Fig. 1 ~ 3, the experimental rig includes base 1 and loading chuck 2, the two ends of test specimen 3 respectively with base 1 and plus
Carry chuck 2 to be fixedly installed, when high speed compression experiment is carried out, base 1 is set on the table, and loading end acts on loading chuck
On 2 so that loading chuck 2 is moved to the direction near base 1, the high speed compression loading to test specimen 3 is realized, the experimental rig is also
The measuring unit of the compressive load including being subject to for test specimen 3 in test compression loading procedure.
Base 1 includes base body 11 and the connecting clip 12 that is vertically arranged on base body 11, one end of test specimen 3 with
Connecting clip 12 is fixedly installed, the other end is fixedly installed with loading chuck 2.
The experimental rig also includes orientation bar assembly, and orientation bar assembly includes being arranged on base body 11 and bearing of trend
The multiple orientation levers 4 consistent with the bearing of trend of connecting clip 12, loading chuck 2 is determined along the length direction of orientation lever 4 with multiple
It is slidably connected to bar 4.
Base body 11 has for accommodating the accommodating chamber of connecting clip 12, base body 11 include base bottom 11a and
Base the sidepiece 11b, base sidepiece 11b and base bottom 11a for being respectively provided with the end side surfaces of base bottom 11a two surround the appearance jointly
Receive chamber, connecting clip 12 is fixedly installed on base bottom 11a and connecting clip 12 is located in accommodating chamber, 4 points of multiple orientation levers
It is not arranged on base sidepiece 11b.In this example, orientation lever 4 is provided with 2, and orientation lever 4 is respectively arranged with base sidepiece 11b.
In this example, connecting clip 12 includes connection clip head 12b and is formed on the connection clip head 12b and extension side
To the connecting portion 12a consistent with the bearing of trend of orientation lever 4, the end of connecting portion 12a is fixedly connected with base bottom 11a；Plus
Carry chuck 2 include loading clamp head 2a and be formed in loading clamp head 2a on and bearing of trend and orientation lever 4 bearing of trend one
The loading unit 2b of cause, loading end acts on the end of loading unit 2b, and loading clamp head 2a is slidably connected with orientation lever 4.
The receiving space 5 for accommodating test specimen 3 is respectively provided with connection clip head 12b and loading clamp head 2a, test specimen 3
Two ends are respectively fixedly disposed in receiving space 5.
The orientation lever 4 of experimental rig of the invention, base body 11 and connecting clip 12 can be integrally formed part, also may be used
Connected as one by techniques such as welding.
The experimental rig also includes the fastening assembly for being respectively fixedly disposed at the two ends of test specimen 3 in receiving space 5,
Fastening assembly includes being engaged with receiving space 5 and for compressing the connecting plate of test specimen 3, and for by connecting plate be connected
Chuck portion 12b and loading clamp head 2a are fixedly installed so that test specimen 3 is fixed on the fastener in receiving space 5, and fastener can be adopted
Use bolt.
Measuring unit of the invention is strain chip measuring unit, and the foil gauge for straining chip measuring unit is arranged on connection
On chuck 12, it is specifically located on connecting portion 12a, realizes the measurement to dynamic compression load.
Rubber blanket is provided with one side on loading chuck 2 with loading end phase separation, specific rubber blanket is arranged on loading
On portion 2b.
High speed compression experimental rig of the invention is used to realize dynamic compressive test on drop hammer tester, base 1 is placed
On the workbench of drop hammer tester, loading chuck 2 is slidably connected with orientation lever 4, and test specimen 3 is arranged on connecting clip 12 and loading
Between chuck 2, when carrying out high speed compression experiment, the tup Impulsive load chuck 2 of drop hammer tester, loading chuck 2 is along orientation lever 4
Sharp downward movement, realizes the high speed compression loading to test specimen 3.Foil gauge is arranged on the connecting portion 12a of connecting clip 12, real
Now to the measurement of dynamic compression load.Rubber blanket is set on loading chuck 2, prevents rigid shock during dynamic impulsion from causing signal
Overload, causes measuring system to be destroyed.
High speed compression experimental rig of the invention has the advantage that：
Experimental rig of the invention is used in combination with drop hammer tester, is capable of achieving the dynamic compression under basic, normal, high different strain rate
Experiment.
Using experimental rig of the present invention, the static side appropriate area near test specimen on device pastes foil gauge dynamometry, can be with
Obtain more accurate dynamic compression load signal measurement effect.
Because test specimen is subject to impact loading in dynamic test, may insure that test specimen is installed using experimental rig of the present invention
It is firm with accommodating, deform controllable.
Experimental rig simple structure of the invention, low cost of manufacture is safe and reliable.
The present invention is described in detail above, its object is to allow the personage for being familiar with this art to will appreciate that this
The content of invention is simultaneously carried out, and it is not intended to limit the scope of the present invention, and the invention is not restricted to above-mentioned implementation
Example, the equivalent change or modification that all Spirit Essences of the invention are made should all be included within the scope of the present invention.
Claims (10)
1. a kind of high speed compression experimental rig, for testing machine, the testing machine has workbench and for examination to be tested
Part acts the loading end of power, it is characterised in that：The experimental rig includes base and loading chuck, the two ends of the test specimen
It is fixedly installed with the base and loading chuck respectively, when high speed compression experiment is carried out, the base is arranged on the work
On platform, the loading end is acted on the loading chuck so that the loading chuck is moved to the direction near the base,
The high speed compression loading to the test specimen is realized, the experimental rig is also included for test specimen described in test compression loading procedure
The measuring unit of the compressive load being subject to.
2. high speed compression experimental rig according to claim 1, it is characterised in that：The base includes base body and erects
The connecting clip on the base body is directly arranged on, one end of the test specimen is fixedly installed with the connecting clip, the other end
It is fixedly installed with the loading chuck.
3. high speed compression experimental rig according to claim 2, it is characterised in that：The measuring unit is surveyed for strain chip
Amount unit, the foil gauge of the strain chip measuring unit is arranged in the connecting clip.
4. high speed compression experimental rig according to claim 2, it is characterised in that：In the connecting clip and loading chuck
The receiving space for accommodating the test specimen is respectively provided with, the two ends of the test specimen are respectively fixedly disposed at the receiving space
It is interior.
5. high speed compression experimental rig according to claim 4, it is characterised in that：The experimental rig is also included for inciting somebody to action
The two ends of the test specimen are respectively fixedly disposed at the fastening assembly in the receiving space.
6. high speed compression experimental rig according to claim 5, it is characterised in that：The fastening assembly includes can be with institute
Receiving space is stated to be engaged and for compressing the connecting plate of the test specimen, and for by the connecting plate and connecting clip and loading
Chuck is fixedly installed so that the test specimen is fixed on the fastener in the receiving space.
7. high speed compression experimental rig according to claim 2, it is characterised in that：The experimental rig also includes orientation lever
Component, the orientation bar assembly include being arranged on the base body and bearing of trend and the connecting clip bearing of trend
Consistent multiple orientation levers, the loading chuck is slidably connected along the length direction of the orientation lever with multiple orientation levers.
8. high speed compression experimental rig according to claim 7, it is characterised in that：The base body has for accommodating
The accommodating chamber of the connecting clip, the base body includes base bottom and is separately positioned on the end side surface of the base bottom two
Base sidepiece, the base sidepiece and base bottom surround the accommodating chamber jointly, and the connecting clip is fixedly installed on institute
State on base bottom and the connecting clip is located in the accommodating chamber, multiple orientation levers are separately positioned on the base side
In portion.
9. high speed compression experimental rig according to claim 1, it is characterised in that：With the loading on the loading chuck
Rubber blanket is provided with the one side for holding phase separation.
10. high speed compression experimental rig according to claim 1, it is characterised in that：The testing machine includes drop weight test
Machine, high speed tensile test machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611070142.0A CN106706425A (en) | 2016-11-29 | 2016-11-29 | High-speed compression testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611070142.0A CN106706425A (en) | 2016-11-29 | 2016-11-29 | High-speed compression testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106706425A true CN106706425A (en) | 2017-05-24 |
Family
ID=58935240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611070142.0A Pending CN106706425A (en) | 2016-11-29 | 2016-11-29 | High-speed compression testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106706425A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553933A (en) * | 2019-08-22 | 2019-12-10 | 华中科技大学 | low strain rate compression experimental apparatus in combined material board |
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| CN103293056A (en) * | 2013-04-19 | 2013-09-11 | 空军工程大学 | Stiffened plate structure axial compression stability test clamp and method |
| CN203720018U (en) * | 2013-11-28 | 2014-07-16 | 中国科学院金属研究所 | Clamp for testing room temperature compression stress and strain curve of porous material |
| CN104237014A (en) * | 2014-10-17 | 2014-12-24 | 清华大学苏州汽车研究院 | High-speed dynamic compression test device |
| CN204694549U (en) * | 2015-06-23 | 2015-10-07 | 中国航空工业集团公司西安飞机设计研究所 | A kind of wallboard compression test fixture |
| CN105806707A (en) * | 2016-05-06 | 2016-07-27 | 苏州中国汽车零部件产业基地发展有限公司 | High-speed tensile test device for battery film material |
| CN206311431U (en) * | 2016-11-29 | 2017-07-07 | 苏州达美特汽车测试技术有限公司 | High speed compression experimental rig |
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2016
- 2016-11-29 CN CN201611070142.0A patent/CN106706425A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293056A (en) * | 2013-04-19 | 2013-09-11 | 空军工程大学 | Stiffened plate structure axial compression stability test clamp and method |
| CN203720018U (en) * | 2013-11-28 | 2014-07-16 | 中国科学院金属研究所 | Clamp for testing room temperature compression stress and strain curve of porous material |
| CN104237014A (en) * | 2014-10-17 | 2014-12-24 | 清华大学苏州汽车研究院 | High-speed dynamic compression test device |
| CN204694549U (en) * | 2015-06-23 | 2015-10-07 | 中国航空工业集团公司西安飞机设计研究所 | A kind of wallboard compression test fixture |
| CN105806707A (en) * | 2016-05-06 | 2016-07-27 | 苏州中国汽车零部件产业基地发展有限公司 | High-speed tensile test device for battery film material |
| CN206311431U (en) * | 2016-11-29 | 2017-07-07 | 苏州达美特汽车测试技术有限公司 | High speed compression experimental rig |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553933A (en) * | 2019-08-22 | 2019-12-10 | 华中科技大学 | low strain rate compression experimental apparatus in combined material board |
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