CN109612803A - It is a kind of for measuring the tensile test specimen of material dynamic performance - Google Patents
It is a kind of for measuring the tensile test specimen of material dynamic performance Download PDFInfo
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- CN109612803A CN109612803A CN201910072078.7A CN201910072078A CN109612803A CN 109612803 A CN109612803 A CN 109612803A CN 201910072078 A CN201910072078 A CN 201910072078A CN 109612803 A CN109612803 A CN 109612803A
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- 239000000463 material Substances 0.000 title claims abstract description 33
- 238000009864 tensile test Methods 0.000 title claims abstract description 24
- 230000013011 mating Effects 0.000 claims abstract description 9
- 238000012360 testing method Methods 0.000 abstract description 21
- 238000010586 diagram Methods 0.000 abstract description 9
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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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
- G01N3/02—Details
-
- 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
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- 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 discloses a kind of for measuring the tensile test specimen of material dynamic performance, sheet gauge length section, cylindrical section I, cylindrical section II, thread head I, thread head II including middle part is arranged in；Screw thread I and the threaded hole in the input lever of used separate type Hopkinson pull rod system waveguide rod be mating, screw thread II and the threaded hole on the output rod of used separate type Hopkinson pull rod system waveguide rod are mating；Tensile test specimen is that same material block is integrally machined forming.Effective section in test specimen of the present invention is sheet gauge length section, uses and the effective section of middle test specimen is different from the prior art as columned situation, higher strain rate may be implemented, and be can adapt in many original materials is sheets the case where；Tensile test specimen is integrally machined forming by same block of material, does not have cementing Deng linkage interfaces between each section, will not be because of the degumming between each section, the case where causing test specimen that can not break, can not obtain complete stress-strain diagram.
Description
Technical field
The invention belongs to material dynamic mechanical performance test fields, and in particular to a kind of for measuring material dynamic performance
Tensile test specimen.
Background technique
The dynamic mechanical of material is very different with quasi-static mechanical property, with the expansion of material application environment
Exhibition, dynamic mechanical pay attention to day by day of the people to material.Separate type Hopkinson pull rod (SHTB) is to carry out MATERIALS ' DYNAMIC drawing
The most frequently used most effective testing equipment of stretch performance study.
In current separate type Hopkinson pull rod system, there are two types of common tensile test specimen is usual: one is cylinders
Shape test specimen, the effective section of test specimen be it is cylindric, be connected by the screw thread at both ends with pull rod, transmitting tensile load；Another kind is sheet
Test specimen, the effective section of test specimen are flake, in the slot that is opened up of both ends insertion tie rod end, by way of gluing with pull rod phase
Even, tensile load is transmitted.In both test specimens, the first is relatively large in diameter due to test specimen, it is difficult to realize higher strain rate, and very
More original materials are sheet, cannot be processed cylindric, limit the progress of experiment；And when being tested using second of test specimen
Usually lead to test specimen degumming because adhesive strength is lower, test specimen can not be broken, and complete stress-strain diagram can not be obtained.
We has developed a kind of for measuring the tensile test specimen of material dynamic performance in order to solve problem above.
Summary of the invention
The object of the invention is that provide a kind of for measuring the drawing of material dynamic performance to solve the above-mentioned problems
Stretch test specimen.
The present invention through the following technical solutions to achieve the above objectives:
It is a kind of for measuring the tensile test specimen of material dynamic performance, comprising:
The sheet gauge length section at middle part is set；
Cylindrical section I, cylindrical section II；The first end of cylindrical section I, the first end of cylindrical section II are connected to sheet gauge length section
Both ends；
Thread head I, thread head II；The first end of thread head I is connected to the second end of cylindrical section I, and the first of thread head II
End is connected to the second end of cylindrical section II；It is provided with screw thread I on the side wall of thread head I, is provided with spiral shell on the side wall of thread head II
Line II, threaded hole in the input lever of screw thread I and used separate type Hopkinson pull rod system waveguide rod is mating, screw thread II
It is mating with the threaded hole on the output rod of used separate type Hopkinson pull rod system waveguide rod；Tensile test specimen is same material
Material block is integrally machined forming.
The beneficial effects of the present invention are:
Of the invention is a kind of for measuring the tensile test specimen of material dynamic performance:
1, effective section in test specimen is sheet gauge length section, uses and the effective section of middle test specimen is different from the prior art to be cylindric
The case where, higher strain rate may be implemented, and can adapt in many original materials be sheet the case where；
2, tensile test specimen is integrally machined forming by same block of material, does not have cementing Deng linkage interfaces between each section, will not
Because of the case where degumming between each section causes test specimen that can not break, can not obtain complete stress-strain diagram.
Detailed description of the invention
Fig. 1 is of the invention a kind of for measuring 2 structural schematic diagram of embodiment of the tensile test specimen of material dynamic performance.
Fig. 2 is the top view of the embodiment of the present invention 2.
Fig. 3 is the schematic diagram of application structure of the embodiment of the present invention 2.
Fig. 4 is of the invention a kind of for measuring 1 structural schematic diagram of embodiment of the tensile test specimen of material dynamic performance.
Fig. 5 is the top view of the embodiment of the present invention 1.
Fig. 6 is the schematic diagram of application structure of the embodiment of the present invention 1.
In figure: 1, thread head I；2, screw thread I；3, cylindrical section I；4, sheet changeover portion I；5, sheet gauge length section；6, sheet mistake
Cross section II；7, cylindrical section II；8, screw thread II；9, thread head II；10, input lever；11, output rod.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings:
Embodiment 1, as shown in Figure 4, Figure 5 and Figure 6:
It is a kind of for measuring the tensile test specimen of material dynamic performance, comprising:
The sheet gauge length section 5 at middle part is set；
Cylindrical section I 3, cylindrical section II 7；The first end of cylindrical section I 3, the first end of cylindrical section II 7 are connected to sheet mark
Both ends away from section 5；
Thread head I 1, thread head II 9；The first end of thread head I 1 is connected to the second end of cylindrical section I 3, thread head II 9
First end is connected to the second end of cylindrical section II 7；Screw thread I 2 is provided on the side wall of thread head I 1, on the side wall of thread head II 9
It is provided with screw thread II 8, screw thread I 2 and the screw thread in the input lever 10 of used separate type Hopkinson pull rod system waveguide rod
Hole is mating, screw thread II 8 and the threaded hole on the output rod 11 of used separate type Hopkinson pull rod system waveguide rod are mating；
Tensile test specimen is that same material block is integrally machined forming.
Effective section in test specimen is sheet gauge length section 5, uses and the effective section of middle test specimen is different from the prior art to be cylindric
The case where, higher strain rate may be implemented, and can adapt in many original materials be sheet the case where；Tensile test specimen is by same
One block of material is integrally machined forming, does not have cementing Deng linkage interfaces between each section, will not lead because of the degumming between each section
The case where causing test specimen that can not break, complete stress-strain diagram can not be obtained.The application efficiently solves tradition and stretches examination
The problem of part is difficult to realize higher strain rate, can not obtain complete stress-strain diagram, and structure is simple, it is easy to assembly, it mentions
High conventional efficient.
Input by the thread head I 1 and thread head II 9 at both ends, with used separate type Hopkinson pull rod system
The threaded hole of bar 10 and output rod 11 is mating, forms experimental system, applies impulse load to input lever 10, produces in input lever 10
Raw stress wave, loads test specimen, completes the measurement of MATERIALS ' DYNAMIC tensile property.
Embodiment 2, as shown in Figure 1, Figure 2 and Figure 3:
The present embodiment the difference from embodiment 1 is that:
Sheet changeover portion I 4 is additionally provided between sheet gauge length section 5 and cylindrical section I 3；In sheet gauge length section 5 and cylindrical section
Sheet changeover portion II 6 is additionally provided between II 7.
Sheet changeover portion I 4 and sheet changeover portion II 6 can be accepted or rejected according to circumstances, and its length can also be with appropriate adjustment.
Embodiment 3:
The present embodiment the difference from example 2 is that: the thickness of sheet changeover portion I 4 and the thickness of sheet changeover portion II 6 are equal
It is identical as the thickness of sheet gauge length section 5.
Embodiment 4, as shown in figs 1 to 6:
The difference of the present embodiment and any one of embodiment 1-3 is:
Tensile test specimen is with symmetrical configuration at the center of sheet gauge length section 5.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe originals of the invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appending claims and equivalents circle
It is fixed.
Claims (4)
1. a kind of for measuring the tensile test specimen of material dynamic performance characterized by comprising
The sheet gauge length section at middle part is set；
Cylindrical section I, cylindrical section II；The first end of cylindrical section I, the first end of cylindrical section II are connected to the two of sheet gauge length section
End；
Thread head I, thread head II；The first end of thread head I is connected to the second end of cylindrical section I, and the first end of thread head II connects
Connect the second end in cylindrical section II；It is provided with screw thread I on the side wall of thread head I, screw thread II is provided on the side wall of thread head II,
Threaded hole in the input lever of screw thread I and used separate type Hopkinson pull rod system waveguide rod is mating, screw thread II and institute
Threaded hole on the output rod of the separate type Hopkinson pull rod system waveguide rod used is mating；Tensile test specimen is same material block
It is integrally machined forming.
2. according to claim 1 a kind of for measuring the tensile test specimen of material dynamic performance, it is characterised in that: in sheet
Sheet changeover portion I is additionally provided between gauge length section and cylindrical section I；Sheet is additionally provided between sheet gauge length section and cylindrical section II
Changeover portion II.
3. according to claim 2 a kind of for measuring the tensile test specimen of material dynamic performance, it is characterised in that: sheet mistake
The thickness of the thickness and sheet changeover portion II that cross section I is identical as the thickness of sheet gauge length section.
4. according to claim 1-3 a kind of for measuring the tensile test specimen of material dynamic performance, feature exists
In: tensile test specimen is with symmetrical configuration at the center of sheet gauge length section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910072078.7A CN109612803A (en) | 2019-01-25 | 2019-01-25 | It is a kind of for measuring the tensile test specimen of material dynamic performance |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910072078.7A CN109612803A (en) | 2019-01-25 | 2019-01-25 | It is a kind of for measuring the tensile test specimen of material dynamic performance |
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| CN109612803A true CN109612803A (en) | 2019-04-12 |
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| CN201910072078.7A Pending CN109612803A (en) | 2019-01-25 | 2019-01-25 | It is a kind of for measuring the tensile test specimen of material dynamic performance |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110146378A (en) * | 2019-05-31 | 2019-08-20 | 中铁大桥科学研究院有限公司 | A kind of cement-based material is uniaxially stretched measurement device and measuring method |
| CN110308035A (en) * | 2019-06-10 | 2019-10-08 | 南京理工大学 | SHTB for soft material test specimen tests clamping device and test method |
| CN114047060A (en) * | 2021-09-03 | 2022-02-15 | 北京理工大学 | A sample subassembly for explosive welding interface developments compression tensile mechanical properties test |
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| JPS5963547A (en) * | 1982-10-04 | 1984-04-11 | Bridgestone Corp | Biaxial tensile testing device for elastic body |
| CN101975700A (en) * | 2010-11-23 | 2011-02-16 | 中国工程物理研究院总体工程研究所 | Device for high temperature Hopkinson tensile test |
| JP2014048144A (en) * | 2012-08-31 | 2014-03-17 | Tokyo Gas Co Ltd | Unit for performing evaluation test on tabular test piece |
| CN104931372A (en) * | 2015-06-03 | 2015-09-23 | 中国石油大学(华东) | Experimental method for simulating stress corrosion of metal material under working conditions |
| CN106525569A (en) * | 2016-12-27 | 2017-03-22 | 清华大学苏州汽车研究院（相城） | Shear test specimen of high-strength metal material |
| CN207074128U (en) * | 2017-08-25 | 2018-03-06 | 中国科学院金属研究所 | Ion irradiation simulates the stress corrosion tensile sample of neutron irradiation |
| CN108918257A (en) * | 2018-07-13 | 2018-11-30 | 上海交通大学 | A kind of stretching clamp for Al and Al superalloy sheet microspecimen |
| CN209460023U (en) * | 2019-01-25 | 2019-10-01 | 中国工程物理研究院总体工程研究所 | It is a kind of for measuring the tensile test specimen of material dynamic performance |
-
2019
- 2019-01-25 CN CN201910072078.7A patent/CN109612803A/en active Pending
Patent Citations (8)
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| CN101975700A (en) * | 2010-11-23 | 2011-02-16 | 中国工程物理研究院总体工程研究所 | Device for high temperature Hopkinson tensile test |
| JP2014048144A (en) * | 2012-08-31 | 2014-03-17 | Tokyo Gas Co Ltd | Unit for performing evaluation test on tabular test piece |
| CN104931372A (en) * | 2015-06-03 | 2015-09-23 | 中国石油大学(华东) | Experimental method for simulating stress corrosion of metal material under working conditions |
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| CN207074128U (en) * | 2017-08-25 | 2018-03-06 | 中国科学院金属研究所 | Ion irradiation simulates the stress corrosion tensile sample of neutron irradiation |
| CN108918257A (en) * | 2018-07-13 | 2018-11-30 | 上海交通大学 | A kind of stretching clamp for Al and Al superalloy sheet microspecimen |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110146378A (en) * | 2019-05-31 | 2019-08-20 | 中铁大桥科学研究院有限公司 | A kind of cement-based material is uniaxially stretched measurement device and measuring method |
| CN110146378B (en) * | 2019-05-31 | 2021-08-06 | 中铁大桥科学研究院有限公司 | Uniaxial tension measuring device and method for cement-based material |
| CN110308035A (en) * | 2019-06-10 | 2019-10-08 | 南京理工大学 | SHTB for soft material test specimen tests clamping device and test method |
| CN114047060A (en) * | 2021-09-03 | 2022-02-15 | 北京理工大学 | A sample subassembly for explosive welding interface developments compression tensile mechanical properties test |
| CN114047060B (en) * | 2021-09-03 | 2023-11-03 | 北京理工大学 | Sample assembly for dynamic compression and stretching mechanical property test of explosive welding interface |
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