CN107314975A - High-accuracy interface binding intensity test device and method - Google Patents
High-accuracy interface binding intensity test device and method Download PDFInfo
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- CN107314975A CN107314975A CN201710552025.6A CN201710552025A CN107314975A CN 107314975 A CN107314975 A CN 107314975A CN 201710552025 A CN201710552025 A CN 201710552025A CN 107314975 A CN107314975 A CN 107314975A
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- clamping device
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/04—Measuring adhesive force between materials, e.g. of sealing tape, of coating
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- Life Sciences & Earth Sciences (AREA)
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Abstract
The invention discloses a kind of high-accuracy interface binding intensity test device and method, it, which is solved, of the prior art is difficult to realize fiber adaptive calibration, the problem of measuring accuracy is low, with the adaptive vertical calibration for realizing fibne pull-out direction, so as to which the beneficial effect of interface binding intensity measuring accuracy is greatly improved, its technical scheme is：Including upper clamping device and lower clamping device, upper clamping device is clamped in the entablature of electronic universal tester, and upper clamping device upper surface sets crossbeam, and upper clamping device upper surface both sides are respectively provided with keyway, crossbeam is connected by bearing pin with roller, and roller can be rolled in keyway；It is connected in the middle part of crossbeam by fastener with fiber clamping device, fiber clamping device bottom clamps fiber to be tested；Lower clamping device is correspondingly arranged in below clamping device, and lower clamping device is clamped in electronic universal tester, and the lower clamping device is provided with T-slot, and the fiber base to be tested carries nut, nut and T-slot interference fits.
Description
Technical field
The present invention relates to material properties test equipment technical field, more particularly to a kind of high-accuracy interface binding intensity is surveyed
Try device and method.
Background technology
The application of fibre reinforced composites is more and more extensive, research of the thing followed to fibre reinforced composites
It is more and more.Interface binding intensity as fibre reinforced composites performance an important indicator, its e measurement technology it is accurate
Property concerns the performance of fibre reinforced composites to a certain degree.
The test of traditional interface adhesion strength is more using Critical fracture length method, single fiber pull-out method, micro- unsticking method and ejection
Method.Critical fracture length method requires high to sample preparation, and matrix material performance there are certain requirements, and is of limited application；Single fiber
Dimension pulling out method is difficult to realize fiber adaptive calibration；Micro- unsticking method requires high to sample preparation, operation inconvenience；Extrusion method is to test-strips
The requirement of part is high, is difficult to control.
Accordingly, it is desirable to provide high-accuracy interface binding intensity test device and method.
The content of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the invention provides a kind of high-accuracy interface binding intensity test dress
Put, the device is simple to operate, with fibne pull-out direction-adaptive calibration function, fiber and macromolecule material can be greatly improved
The interface binding intensity measuring accuracy of material.
Further, the present invention uses following technical proposals：
High-accuracy interface binding intensity test device, including upper clamping device and lower clamping device, the upper clamping device
The entablature of electronic universal tester is clamped in, upper clamping device upper surface sets crossbeam, and upper clamping device upper surface both sides are equal
Keyway is set, and crossbeam is connected by bearing pin with roller, and roller can be rolled in keyway；Pass through fastener and fibre in the middle part of the crossbeam
Clamping device connection is tieed up, fiber clamping device bottom clamps fiber to be tested；The lower clamping device is correspondingly arranged in clamping
Below device, lower clamping device is clamped in electronic universal tester, and the lower clamping device is provided with T-slot, the fibre to be tested
Tie up bottom and carry nut, nut and T-slot interference fits.
Roller can be rolled in the keyway of upper clamping device in the test device of the present invention, it is ensured that fibne pull-out direction exists
The regulation of horizontal direction.T-slot is set on lower clamping device, and nut is slided in T-slot can ensure fibne pull-out direction preceding
Rear to regulation.The nut of the moving left and right of the crossbeam of upper clamping device, lower clamping device T-slot and fibre pouring shaping
The adaptive vertical calibration that fibne pull-out direction is realized from gravity.
Further, the upper clamping device sets spacing preiection in the outside of keyway.Spacing preiection is set, can be prevented
Because the deformation of high polymer material material plasticity, break of CFRP impact cause crossbeam to skid off in fibne pull-out loading procedure.
Further, the fastener is clamp nut, and pad is set between clamp nut and crossbeam.
Further, the fiber clamping device sets key pin, and fiber clamping device is connected by key pin and fiber to be tested
Connect.Key pin is set on fiber clamping device, and fiber to be measured winds key pin, realizes the company of fiber to be measured and fiber clamping device
Connect.
Further, the nut and the integral moulding by casting of fiber to be tested.
Further, the nut engaging is arranged in T-slot, and nut can be slided along T-slot.Nut is sliding in T-slot
It is dynamic, band kinetodesma movement, it is ensured that regulation of the fibne pull-out direction in fore-and-aft direction.
Further, the T-slot is half groove, and T-slot extends from the openend of lower clamping device to blind end to be set
Distance.
Further, the lower clamping device corresponds in openend sets clip at T-slot, the clip and lower clamping
Device rotates connection.Prevent in fibne pull-out loading procedure because the impacts such as the deformation of high polymer material material plasticity, fiber drawing are made
Skidded off into nut.
Further, the clip carries neck, and the lower clamping device is provided with the axis being engaged with neck, the card
Folder is rotatably sticked in axis.The rotation junction of clip and lower clamping device is arranged at openend side, and axis is arranged at out
Mouth end opposite side, after clip is rotated, the neck of clip is engaged with the axis of lower clamping device, by nut shelves in T-slot
And can not skid off.
The method of testing of high-accuracy interface binding intensity test device, comprises the following steps：
1) endoporus of nut is regarded into casting die, fiber to be tested and nut is cast for one using high polymer material
Body；
2) fiber to be measured is wound and loaded after key pin in fiber clamping device, manual pretension fixes upper clamping device
In on the entablature of electronic universal tester；
3) load lower clamping device after nut is static, and lower clamping device is clamped on electronic universal tester, connect
Logical electronic universal tester power supply, sets loading speed, determines fiber interface adhesion strength.
High-accuracy interface binding intensity test device, including upper clamping device, the upper clamping device are clamped in electronics ten thousand
The entablature of energy testing machine, upper clamping device upper surface sets crossbeam, and upper clamping device upper surface both sides are respectively provided with keyway, crossbeam
It is connected by bearing pin with roller, roller can be rolled in keyway；Connected in the middle part of the crossbeam by fastener and fiber clamping device
Connect, fiber clamping device bottom clamps fiber to be tested；The fiber base to be tested and the integral moulding by casting of nut, the spiral shell
Mother is clamped in electronic universal tester.The diameter of nut is in 15mm~40mm.
The method of testing of high-accuracy interface binding intensity test device, comprises the following steps：
1) endoporus of nut is regarded into casting die, fiber to be tested and nut is cast for one using high polymer material
Body；
2) fiber to be measured is wound and loaded after key pin in fiber clamping device, manual pretension fixes upper clamping device
In on the entablature of electronic universal tester；
3) nut is clamped on electronic universal tester, connects electronic universal tester power supply, set loading speed, surveyed
Determine fiber interface adhesion strength.
Compared with prior art, the beneficial effects of the invention are as follows：
1) cooperation that the present invention passes through roller and keyway, it is ensured that tune of the fibne pull-out direction in level (left and right) direction
Section.
2) by the setting of T-slot in the present invention, it is ensured that regulation of the fibne pull-out direction in fore-and-aft direction.
3) it is by using high polymer material that nut and fibre pouring is integral in the present invention, using nut from gravity,
Coordinate the regulation of horizontal direction and fore-and-aft direction, the adaptive vertical calibration in fibne pull-out direction is realized, so as to increase substantially
Interface binding intensity measuring accuracy.
4) present invention in by using high polymer material by nut and fibre pouring one, prevent in fibre drawing process by
Between high polymer material and mould interfacial bond property it is poor and occur high polymer material and nut between Relative sliding pair
The influence of fiber interface adhesion strength test result.
5) it is by using high polymer material that nut and fibre pouring is integral in the present invention, and the lower clamping device of setting (or
Direct clamping nut), prevent clamping power during direct clamping high polymer material from producing extruding to fiber, glued so as to avoid interface
Knotting strength value measured value is bigger than normal than actual value.
Brief description of the drawings
The Figure of description for constituting the part of the application is used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its illustrate be used for explain the application, do not constitute the improper restriction to the application.
Fig. 1 is high-accuracy interface binding intensity test device structure diagram；
Fig. 2 is the upper clamping device front view of high-accuracy interface binding intensity test device；
Fig. 3 is the upper clamping device top view of high-accuracy interface binding intensity test device；
Fig. 4 is the lower clamping device front view of high-accuracy interface binding intensity test device；
Fig. 5 is the lower clamping device top view of high-accuracy interface binding intensity test device；
Fig. 6 is another exemplary construction sketch of high-accuracy interface binding intensity test device；
In figure, 1. spacing preiections, 2. rollers, 3. nuts, 4. pads, 5. bearing pins, 6. keyways, clamping device on 7., 8. is fine
Tie up clamping device, 9. key pins, 10. times clamping devices, 11. fibers, 12. clips, 13. nuts, 14. crossbeams, 15.T type grooves, 16.
Axis.
Embodiment
It is noted that described further below is all exemplary, it is intended to provide further instruction to the application.Unless another
Indicate, all technologies used herein and scientific terminology are generally understood that with the application person of an ordinary skill in the technical field
It is meant that what is be consistent.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.Additionally, it should be understood that, when in this manual use term "comprising" and/
Or during " comprising ", it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
As background technology is introduced, the deficiencies in the prior art, in order to solve technical problem as above, this Shen
It please propose a kind of high-accuracy interface binding intensity test device and method.
In a kind of typical embodiment of the application, there is provided a kind of high-accuracy interface binding intensity as Figure 1-5
Test device, including：Spacing preiection 1, roller 2, nut 3, pad 4, bearing pin 5, keyway 6, upper clamping device 7, fiber clamping dress
Put 8, key pin 9, lower clamping device 10, fiber 11, clip 12, nut 13, crossbeam 14, T-slot 15.Upper clamping device 7 is clamped in
The entablature of electronic universal tester, upper clamping device 7 is provided with keyway 6, the crossbeam 14 of upper clamping device 7 by bearing pin 5 with
Roller 2 is connected, and roller 2 can be rolled in keyway 6.Fiber 11 realizes clamping, fiber clamping device 8 by fiber clamping device 8
The middle part of crossbeam 14 is connected to by fastener, with the nut 13 of the moulding by casting of fiber 11 and the T-slot 15 of lower clamping device 10 into
Interference fits, lower clamping device 10 is clamped on electronic universal tester.
Fastener is clamp nut 3, and pad 4 is set between clamp nut 3 and crossbeam 14.
Roller 2, roller 2 are provided with above-mentioned high-precision interface binding intensity test device, the crossbeam 14 of upper clamping device 7
It can be rolled in the keyway 6 of upper clamping device 7, it is ensured that the regulation of fibne pull-out direction in the horizontal direction.Lower clamping device 10
Upper setting T-slot 15, it is ensured that regulation of the fibne pull-out direction in fore-and-aft direction.The left and right of the crossbeam 14 of upper clamping device 7 is moved
The nut 13 of dynamic, lower clamping device T-slot 15 and the moulding by casting of fiber 11 realizes the adaptive of fibne pull-out direction from gravity
Answer vertical calibration.
Above-mentioned high-accuracy interface binding intensity test device, fiber 11 and high polymer material interface binding intensity test sample
Mould can use standard nut 13, prevent in the drawing process of fiber 11 due to interfacial bond property between high polymer material and mould
Poor and influence of the Relative sliding to the interface binding intensity test result of fiber 11 between the high polymer material and nut that occur.It is anti-
The extruding that only clamping power is produced to fiber 11 during direct clamping high polymer material, so that interface binding intensity value measured value is than real
Actual value is bigger than normal.
Fiber clamping device 8 sets key pin 9, and fiber clamping device 8 is connected by key pin 9 with fiber 11 to be tested.In fibre
Key pin is set on dimension clamping device, and fiber to be measured winds key pin, realizes the connection of fiber to be measured and fiber clamping device.
Above-mentioned high-precision interface binding intensity test device, the outside for corresponding to keyway 6 in upper clamping device 7 sets spacing
Projection 1, is prevented in fibne pull-out loading procedure because the deformation of high polymer material material plasticity, break of CFRP etc. impact the horizontal stroke caused
Beam 14 is skidded off.
As shown in figure 5, nut 13 can be slided in T-slot 15, T-slot 15 is half groove, and T-slot is by lower clamping device
Openend (i.e. front end in Fig. 5) extends setpoint distance to blind end (i.e. rear end in Fig. 5).
Lower clamping device 10 corresponds in openend sets clip 12 at T-slot 15, clip 12 and lower 10 turns of clamping device
Dynamic connection, clip 12 carries neck, and lower clamping device 10 is provided with the axis 16 being engaged with neck, and clip 12 is rotatably sticked in
Axis 16.The rotation junction of clip and lower clamping device is arranged at openend side, and axis is arranged at openend opposite side, will
After clip is rotated, the neck of clip is engaged with the axis of lower clamping device, by nut grade in T-slot, preventing fiber 11 from drawing
Pull out in loading procedure because the nut 13 that the impact such as the deformation of high polymer material material plasticity, break of CFRP is caused is skidded off.
Structure of the present invention is novel, easy to operate, can realize the adaptive vertical calibration function in fibne pull-out direction, so that
Interface binding intensity measuring accuracy is greatly improved.
Above-mentioned test device can be used for flexible fiber and the asphalt mixtures modified by epoxy resin such as steel fibre, alumina fibre, molybdenum fiber, carbon fiber
The interface binding intensity test of fat, polyethylene Polymer material, it is to avoid during direct clamping high polymer material parcel fiber pair
The extruding that fiber is produced, is significantly increased the interface binding intensity measuring accuracy of fiber and high polymer material.
In order to overcome the deficiencies in the prior art, the present invention provides a kind of based on high-precision interface binding intensity test device
Method of testing, step is as follows：
1) high-accuracy interface binding intensity test device as described above is provided；
2) assign the endoporus of nut as casting die, fiber is integrated with nut cast using high polymer material；
3) fiber to be measured is wound and loaded after key pin in determinand clamping device fiber clamping device, manual pretension will
Upper clamping device is fixed on the entablature of electronic universal tester；
4) load bottom clamping device after nut is static, and bottom clamping device is clamped in electronic universal tester
On, electronic universal tester power supply is connected, loading speed is set, fiber interface adhesion strength is determined.
In another embodiment of the invention, high-accuracy interface binding intensity test device is saved when using compared with big nut 13
Lower clamping mechanism is omited, as shown in fig. 6, being directly attached the nut 13 being connected with fiber with electronic universal tester.Spiral shell
Female diameter is in 15mm~40mm.
Correspondingly, a kind of high-precision interface binding intensity method of testing, step is as follows：
1) high-accuracy interface binding intensity test device as described above is provided；
2) assign the endoporus of nut as casting die, fiber is integrated with nut cast using high polymer material；
3) fiber to be measured is wound and loaded after key pin in fiber clamping device, manual pretension consolidates upper clamp mechanism
Due on the entablature of electronic universal tester；
4) treat that nut is clamped on electronic universal tester, connect electronic universal tester power supply, set loading speed, survey
Determine fiber interface adhesion strength.
The preferred embodiment of the application is the foregoing is only, the application is not limited to, for the skill of this area
For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair
Change, equivalent substitution, improvement etc., should be included within the protection domain of the application.
Claims (10)
1. high-accuracy interface binding intensity test device, it is characterized in that, including upper clamping device and lower clamping device, the upper folder
The entablature that device is clamped in electronic universal tester is held, upper clamping device upper surface sets crossbeam, upper clamping device upper surface
Both sides are respectively provided with keyway, and crossbeam is connected by bearing pin with roller, and roller can be rolled in keyway；Pass through fastening in the middle part of the crossbeam
Part is connected with fiber clamping device, and fiber clamping device bottom clamps fiber to be tested；The lower clamping device is correspondingly arranged in
Below upper clamping device, lower clamping device is clamped in electronic universal tester, and the lower clamping device is provided with T-slot, described to treat
Test fiber base and carry nut, nut and T-slot interference fits.
2. test device as claimed in claim 1, it is characterized in that, the upper clamping device sets limit convex in the outside of keyway
Rise.
3. test device as claimed in claim 1, it is characterized in that, the fastener is clamp nut, clamp nut and crossbeam
Between pad is set；The nut and the integral moulding by casting of fiber to be tested.
4. test device as claimed in claim 1, it is characterized in that, the fiber clamping device sets key pin, fiber clamping dress
Put and be connected by key pin with fiber to be tested.
5. test device as claimed in claim 1, it is characterized in that, the nut engaging is arranged in T-slot, and nut can be along T
Type groove is slided；The T-slot is half groove, and T-slot extends setpoint distance from the openend of lower clamping device to blind end.
6. test device as claimed in claim 5, it is characterized in that, the lower clamping device corresponds at T-slot in openend
Clip is set, and the clip is rotated with lower clamping device and is connected.
7. test device as claimed in claim 6, it is characterized in that, the clip carries neck, and the lower clamping device is provided with
The axis being engaged with neck, the clip is rotatably sticked in axis.
8. the method for testing of the test device as described in claim any one of 1-7, it is characterized in that, comprise the following steps：
1) endoporus of nut is regarded into casting die, be integrated fiber to be tested with nut cast using high polymer material；
2) fiber to be measured is wound and loaded after key pin in fiber clamping device, upper clamping device is fixed on electricity by manual pretension
On the entablature of sub- universal testing machine；
3) load lower clamping device after nut is static, and lower clamping device is clamped on electronic universal tester, connect electricity
Sub- universal test electromechanical source, sets loading speed, determines fiber interface adhesion strength.
9. high-accuracy interface binding intensity test device, it is characterized in that, including upper clamping device, the upper clamping device is clamped in
The entablature of electronic universal tester, upper clamping device upper surface sets crossbeam, and upper clamping device upper surface both sides are respectively provided with key
Groove, crossbeam is connected by bearing pin with roller, and roller can be rolled in keyway；Clamped in the middle part of the crossbeam by fastener and fiber
Device is connected, and fiber clamping device bottom clamps fiber to be tested；The fiber base to be tested and the integral moulding by casting of nut,
The nut is clamped in electronic universal tester.
10. the method for testing of test device as claimed in claim 9, it is characterized in that, comprise the following steps：
1) endoporus of nut is regarded into casting die, be integrated fiber to be tested with nut cast using high polymer material；
2) fiber to be measured is wound and loaded after key pin in fiber clamping device, upper clamping device is fixed on electricity by manual pretension
On the entablature of sub- universal testing machine；
3) nut is clamped on electronic universal tester, connects electronic universal tester power supply, set loading speed, determine fine
Tie up interface binding intensity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710552025.6A CN107314975B (en) | 2017-07-07 | 2017-07-07 | High-accuracy interface binding intensity test device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710552025.6A CN107314975B (en) | 2017-07-07 | 2017-07-07 | High-accuracy interface binding intensity test device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107314975A true CN107314975A (en) | 2017-11-03 |
| CN107314975B CN107314975B (en) | 2019-08-23 |
Family
ID=60177942
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710552025.6A Active CN107314975B (en) | 2017-07-07 | 2017-07-07 | High-accuracy interface binding intensity test device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113640107A (en) * | 2021-08-13 | 2021-11-12 | 中国科学院长春应用化学研究所 | Clamp for testing fatigue performance of polymer cord/rubber interface and testing method |
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| KR20110013022A (en) * | 2009-07-31 | 2011-02-09 | 주식회사 성우하이텍 | Impact point measurement device for door module of vehicles |
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| CN113640107A (en) * | 2021-08-13 | 2021-11-12 | 中国科学院长春应用化学研究所 | Clamp for testing fatigue performance of polymer cord/rubber interface and testing method |
| CN113640107B (en) * | 2021-08-13 | 2022-06-07 | 中国科学院长春应用化学研究所 | Clamp for testing fatigue performance of polymer cord/rubber interface and testing method |
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| Publication number | Publication date |
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| CN107314975B (en) | 2019-08-23 |
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