CN204302101U - Be applicable to the test unit of the uniaxial tensile test of viscoelastic material - Google Patents
Be applicable to the test unit of the uniaxial tensile test of viscoelastic material Download PDFInfo
- Publication number
- CN204302101U CN204302101U CN201420746260.9U CN201420746260U CN204302101U CN 204302101 U CN204302101 U CN 204302101U CN 201420746260 U CN201420746260 U CN 201420746260U CN 204302101 U CN204302101 U CN 204302101U
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- test specimen
- dumbbell shape
- test
- coupling arrangement
- fixture
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Abstract
The utility model discloses a kind of test unit being applicable to the uniaxial tensile test of viscoelastic material, comprise dumbbell shape fixture, coupling arrangement and test specimen; One end of dumbbell shape fixture is testing machine connecting hole, the other end is dumbbell shape clip slot, one end of coupling arrangement and the mating shapes of dumbbell shape clip slot, and embed dumbbell shape clip slot, the other end of coupling arrangement has test specimen link slot, the two ends of test specimen are fixedly connected in test specimen link slot by epoxide-resin glue, and the coupling arrangement at two ends and dumbbell shape fixture are symmetricly set on the two ends of test specimen; The utility model test specimen processing cost is low, can avoid the slippage between test specimen and fixture, can regulate the length of test specimen at any time, and the stress that the transition section of dumbbell shape test specimen can be avoided to produce is concentrated according to test.
Description
Technical field
The utility model belongs to mechanics of materials research field, particularly a kind of test unit being applicable to the uniaxial tensile test of viscoelastic material.
Background technology
Uniaxial tensile test is one of important method of research material mechanical property, and its principle is based upon on the basis of quasistatic mechanical property.Although the tensile test equipment of metal material, test specimen and clamp technology are full-fledged, there has also been relevant testing standard, and the tension test for viscoelastic rubber material still needs to be further developed.
Tension test needs the problem solved to have the preparation technology of test specimen, and test specimen is fixing with fixture, fixing and the problem of stress concentration of process of the test of fixture and testing machine.Document " Fatigue damage in a unidirectional SiC/Alcomposite due to push-pull and zero-pull loading " adopts dumbbell shape test specimen, very high requirement is proposed to the processing technology of test specimen, processing cost for short run test specimen is higher, and, distortion larger material softer for quality, the connection that test specimen and fixture are stable in drawing process cannot be ensured.Document " Experimental investigation ofthe stress – stretch behavior of EPDM rubber with loading rate effects " adopts rectangular parallelepiped plate test coupon, have employed a kind of more complicated clamping structure, but still there will be slippage between test specimen and fixture, a correction factor need be adopted to revise.But due in drawing process along with the slippage between the change test specimen of rate of extension and fixture also can change, cause measurement result to there is comparatively big error.These two kinds of blessing modes are not all suitable for the viscoelastic material of soft large deformation.
Utility model content
It is low that the purpose of this utility model is to provide a kind of test specimen processing cost, the slippage between test specimen and fixture can be avoided, the length of test specimen can be regulated at any time according to test, and the test unit being applicable to the uniaxial tensile test of viscoelastic material that the stress that the transition section of dumbbell shape test specimen can be avoided to produce is concentrated.
The technical solution realizing the utility model object is:
Be applicable to a test unit for the uniaxial tensile test of viscoelastic material, comprise dumbbell shape fixture, coupling arrangement and test specimen; One end of dumbbell shape fixture is testing machine connecting hole, the other end is dumbbell shape clip slot, one end of coupling arrangement and the mating shapes of dumbbell shape clip slot, and embed dumbbell shape clip slot, the other end of coupling arrangement has test specimen link slot, the two ends of test specimen are fixedly connected in test specimen link slot by epoxide-resin glue, and the coupling arrangement at two ends and dumbbell shape fixture are symmetricly set on the two ends of test specimen.
The utility model compared with prior art, its remarkable advantage:
(1) the utility model structure is simple, not be conceived to realize testing requirements by the structure of complexity, but by simple for limited structure part by combining cleverly, meet testing requirements, convenient processing and manufacture and cost-effective while the reliability of this device that also increases.
(2) in the utility model coupling arrangement be obtained by standard machinery processing, and processing technology is extremely simple, can the degree of accuracy of assurance device, thus the consistance of assurance device.
(3) the utility model is integrated with the advantage of dumbbell shape test specimen and rectangular parallelepiped test specimen, both the processing technology of test specimen had been simplified, reduce cost, it also avoid the slippage of rectangular parallelepiped test specimen in drawing process between test specimen and fixture, and employing dumbbell shape chuck also achieves the centering between test specimen and fixture preferably.
(4) the utility model can regulate the length of test specimen at any time according to test, and does not need the mould again making dumbbell shape test specimen.
(5) effective length of test specimen is exactly the intermediate length of two fixtures, the utility model does not need the gauge length studying dumbbell shape test specimen, particularly can improve test accuracy to greatest extent to viscoelastic material, reduce dumbbell shape test specimen transition section to the impact of experimental data.
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model is applicable to the test unit dumbbell shape fixture of the uniaxial tensile test of viscoelastic material.
Fig. 2 is the structural representation that the utility model is applicable to the test unit coupling arrangement of the uniaxial tensile test of viscoelastic material.
Fig. 3 is the trystate schematic diagram that the utility model is applicable to the test unit of the uniaxial tensile test of viscoelastic material.
Embodiment
Composition graphs 1 ~ Fig. 3:
A kind of test unit being applicable to the uniaxial tensile test of viscoelastic material of the utility model, comprises dumbbell shape fixture 1, coupling arrangement 2 and test specimen 3; One end of dumbbell shape fixture 1 is testing machine connecting hole, the other end is dumbbell shape clip slot, one end of coupling arrangement 2 and the mating shapes of dumbbell shape clip slot, and embed dumbbell shape clip slot, the other end of coupling arrangement 2 has test specimen link slot 4, the two ends of test specimen 3 are fixedly connected in test specimen link slot 4 by epoxide-resin glue 3, and the coupling arrangement 2 at two ends and dumbbell shape fixture 1 are symmetricly set on the two ends of test specimen 3.
The bottom of test specimen link slot 4 and the end face distance of dumbbell shape fixture 1 are more than or equal to 5mm.
Coupling arrangement 2 adopts cast iron materials.
Its principle of work is:
Through machining, coupling arrangement 2 is closed, to realize stability and the centering of coupling arrangement 2 with the dumbbell shape clip slot matching form of dumbbell shape fixture 1 (adopting the dumbbell shape fixture of existing routine).Use epoxide-resin glue to be bonded in test specimen link slot 4 by test specimen 3, avoid the slippage between test specimen 3 and dumbbell shape fixture 1.Material selected by coupling arrangement 2 is the rectangle cast iron that two shapes are identical, there is the feature such as high rigidity, high-wearing feature, the shape matched with the dumbbell shape clip slot of dumbbell shape fixture is processed in one end of rectangle cast iron, be used for coordinating with dumbbell shape fixture 1 installing, replace the dumbbell shape structure of original test specimen, enhance the stability and centering that coordinate with dumbbell shape fixture 1.Test specimen link slot 4 is milled out in the middle part of the other end of rectangle cast iron, bottom test specimen link slot 4 with should maintain a certain distance (being generally more than or equal to 5mm) with the end face of dumbbell shape fixture 1, otherwise time bonding, can gummosis be there is, make test specimen 3 or dumbbell shape fixture 1 are stained with glue.In bonding process, be put in test specimen link slot 4 by the test specimen 3 of well cutting, epoxide-resin glue slowly watered test specimen link slot 4 li, rotate test specimen 3, make the part surface of test specimen 3 in test specimen link slot 4 have glue completely, placement etc. are to be solidified silently.
It should be noted that in installation process that must guarantee coupling arrangement 2 and dumbbell shape fixture 1 stable is connected and the solidification completely of epoxide-resin glue between test specimen 3 and test specimen link slot 4.
Claims (3)
1. be applicable to a test unit for the uniaxial tensile test of viscoelastic material, it is characterized in that: comprise dumbbell shape fixture (1), coupling arrangement (2) and test specimen (3); One end of dumbbell shape fixture (1) is testing machine connecting hole, the other end is dumbbell shape clip slot, one end of coupling arrangement (2) and the mating shapes of dumbbell shape clip slot, and embed dumbbell shape clip slot, the other end of coupling arrangement (2) has test specimen link slot (4), the two ends of test specimen (3) are fixedly connected in test specimen link slot (4) by epoxide-resin glue (3), and the coupling arrangement (2) at two ends and dumbbell shape fixture (1) are symmetricly set on the two ends of test specimen (3).
2. the test unit being applicable to the uniaxial tensile test of viscoelastic material according to claim 1, is characterized in that: the bottom of described test specimen link slot (4) and the end face distance of dumbbell shape fixture (1) are more than or equal to 5mm.
3. the test unit being applicable to the uniaxial tensile test of viscoelastic material according to claim 1, is characterized in that: described coupling arrangement (2) adopts cast iron materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420746260.9U CN204302101U (en) | 2014-12-02 | 2014-12-02 | Be applicable to the test unit of the uniaxial tensile test of viscoelastic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420746260.9U CN204302101U (en) | 2014-12-02 | 2014-12-02 | Be applicable to the test unit of the uniaxial tensile test of viscoelastic material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204302101U true CN204302101U (en) | 2015-04-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420746260.9U Withdrawn - After Issue CN204302101U (en) | 2014-12-02 | 2014-12-02 | Be applicable to the test unit of the uniaxial tensile test of viscoelastic material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204302101U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406853A (en) * | 2014-12-02 | 2015-03-11 | 南京理工大学 | Test device suitable for uniaxial tensile test on viscous-elastic material |
| CN105067967A (en) * | 2015-07-16 | 2015-11-18 | 国网智能电网研究院 | Portable apparatus for measuring dielectric property of large-test-piece elastic material in non-linear stretching state |
| CN107271261A (en) * | 2017-06-22 | 2017-10-20 | 中国船舶重工集团公司第七二五研究所 | A kind of servicing unit of fastener tension test in kind and the method tested with it |
| CN112611635A (en) * | 2020-11-09 | 2021-04-06 | 西北工业大学 | Concrete uniaxial tension test fixture and test method |
-
2014
- 2014-12-02 CN CN201420746260.9U patent/CN204302101U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406853A (en) * | 2014-12-02 | 2015-03-11 | 南京理工大学 | Test device suitable for uniaxial tensile test on viscous-elastic material |
| CN104406853B (en) * | 2014-12-02 | 2017-03-15 | 南京理工大学 | It is applied to the assay device of the uniaxial tensile test of viscoelastic material |
| CN105067967A (en) * | 2015-07-16 | 2015-11-18 | 国网智能电网研究院 | Portable apparatus for measuring dielectric property of large-test-piece elastic material in non-linear stretching state |
| CN107271261A (en) * | 2017-06-22 | 2017-10-20 | 中国船舶重工集团公司第七二五研究所 | A kind of servicing unit of fastener tension test in kind and the method tested with it |
| CN112611635A (en) * | 2020-11-09 | 2021-04-06 | 西北工业大学 | Concrete uniaxial tension test fixture and test method |
| CN112611635B (en) * | 2020-11-09 | 2022-03-11 | 西北工业大学 | Concrete uniaxial tension test fixture and test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150429 Effective date of abandoning: 20171114 |
|
| AV01 | Patent right actively abandoned |