CN107421805B - A kind of fixture for composite panel and aluminium alloy plate riveting parts shearing test - Google Patents
A kind of fixture for composite panel and aluminium alloy plate riveting parts shearing test Download PDFInfo
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- CN107421805B CN107421805B CN201710541721.7A CN201710541721A CN107421805B CN 107421805 B CN107421805 B CN 107421805B CN 201710541721 A CN201710541721 A CN 201710541721A CN 107421805 B CN107421805 B CN 107421805B
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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
- G01N3/04—Chucks
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- 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
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
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- 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
- G01N2203/0014—Type of force applied
- G01N2203/0025—Shearing
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- 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
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of fixtures for composite panel and aluminium alloy plate riveting parts shearing test, including first clamping plate, second clamping plate, two fastening plates and two fixed edge of a knife fixture blocks of extensometer and relevant connector.First and second clamping plate includes gripping section, positioning step and sample clamping plate, and self-positioning step one end to the other end is successively arranged keyway, sample placing groove and boss guide-localization key on sample clamping plate；The bottom of sample placing groove is equipped with the through-hole for placing rivet, when the fixture assembles, it is located at that both ends, two boss guide-localization keys are embedded in respectively in two keyways fastens clamping plate mutually according to first clamping plate and second clamping plate gripping section, the upper surface of boss guide-localization key is fixed with fastening plates, and the fixed edge of a knife fixture block of two extensometers is located at the ipsilateral of the first and second clamping plate.The tensile shear(ing) test for the progress dissimilar material small size lap shear sample that the present invention can be convenient, while the extensometer that can be loaded, can the real time measure shearing force with displacement situation of change.
Description
Technical field
The invention belongs to composite panel and aluminium alloy plate dissimilar material lap riveting joint performance detection technique field, tools
Body is related to a kind of grip device for realizing composite panel Yu aluminium alloy plate riveting parts shearing test.
Background technique
Composite material is to be combined by a few class different materials such as organic polymer, inorganic non-metallic or metal by combination process
Made of new material, it can retain the main characteristics of original component material, and the performance of each component is made further through design of material
It complements each other, to obtain the incomparable superior function of stock blend material.The advanced composite material developed at present has
The advantages that high specific strength, specific stiffness, good thermal conductivity, electric conductivity, thermal stability and corrosion resistance, it can be used for manufacturing processing
The main force support structure of aerospace flight vehicle and time load-carrying construction, stiffness and strength performance can reach or be more than aluminium alloy material
Material.Such as aircraft forebody section, wing outer wing, flaps, rectification siding component.Aluminum and aluminum alloy mateial has density small, than
The good characteristics such as intensity high, elasticity is good, shock resistance is good, corrosion-resistant, high thermal conductivity, easy processing, are widely used in aerospace
Field.Various aircrafts are all using aluminium alloy as primary structural material.Such as covering, beam, rib, stringer, bulkhead and the ground on aircraft
Aluminium alloy manufacture can be used in deck etc.；Additionally it is applied to carrier rocket fuel tank, oxidizer tank, inter-tank section, interstage section, tail
The manufacture of section and instrument room.
As two kinds of important structural materials of aerospace field, mainly adopted between composite product and articles made of aluminium alloy
With riveting lap joint form.Riveted joint quality has a major impact the performance of entire component.Therefore how composite panel is evaluated
The riveting part service performance of part and aluminium alloy panels, is major issue of interest in such structure manufacturing process.
Lap joint is riveted in use, mainly by shearing force.Therefore multiple using shear tension test evaluation
The quality of condensation material plate and aluminium alloy plate riveted joint is a kind of important method for meeting actual bearer state.Currently, due to not having
There is the fixture for composite material and the test of aluminum alloy lapped riveted joint shear tension, it therefore, can only be using similar spot welding
The lap shear tensile sample of head, but since composite material strength is significantly lower than aluminium alloy plate, in the test of this shear tension
Failure by shear first is unable to test the shear strength of rivet by composite material bond end.Therefore the direct shearing to realize rivet
It destroys, it is necessary to design and develop dedicated shearing stretching clamp and special small size lap shear sample.
Summary of the invention
In order to solve composite panel and aluminium alloy plate dissimilar material lap riveting joints shear Problem In Tensile Test, this hair
It is bright to devise a kind of special small ruler that can reflect composite panel Yu aluminium alloy plate lap riveting connector actual bearer state
Very little lap shear sample and the fixture for carrying out shear tension test.The carry out dissimilar material that can be convenient using the shearing clamp is small
The tensile shear(ing) test of size lap shear sample, and convenient for being loaded extensometer, can the real time measure shearing force with displacement
Situation of change.
In order to solve the above-mentioned technical problem, a kind of composite panel that is used for proposed by the present invention is cut with aluminium alloy plate riveting parts
The fixture of test is cut, which includes first clamping plate and second clamping plate, and the first clamping plate and second clamping plate have following identical
Partial structure, includes gripping section, positioning step and sample clamping plate, and self-positioning step one end is to another on the sample clamping plate
End is successively arranged keyway, sample placing groove and boss guide-localization key；The thickness of sample clamping plate, described where the keyway perforation
The height of boss guide-localization key is 0.1~0.2mm bigger than the thickness of sample clamping plate；The bottom of the sample placing groove is equipped with and is used for
The through-hole of rivet is placed, the side of the sample clamping plate is fixed with the fixed edge of a knife fixture block of extensometer；Examination in the first clamping plate
Sample placing groove is composite material placing groove, and for placing the composite panel in sample, the sample in the second clamping plate is placed
Slot is aluminium alloy plate placing groove, for placing aluminium alloy plate in sample；The width of aluminium alloy plate placing groove in the second clamping plate
Degree is of same size with the composite material placing groove in the first clamping plate, is 2.5D, wherein D is the straight of rivet in sample
The length of diameter, the aluminium alloy plate placing groove is longer than the length of the composite material placing groove；The first clamping plate and the second folder
The fixed edge of a knife fixture block of extensometer on plate is located on different sides；The bottom of the aluminium alloy plate placing groove is equipped with a disassembly
The via hole of sample；When the fixture assembles, it is located at both ends and sample according to the first clamping plate and the second clamping plate gripping section
Clamping plate mutually fastens, wherein two boss guide-localization keys are embedded in respectively in two keyways, the boss guide-localization key it is upper
Face is fixed with fastening plates；After fixture assembly, the fixed edge of a knife fixture block of extensometer in the first clamping plate and second clamping plate is located at
It is ipsilateral.
Further, in the present invention, it is long that the length ratio of the keyway is inlaid in boss guide-localization key length therein
2~2.5D out.
The length of aluminium alloy plate placing groove in the second clamping plate is the composite material placing groove in the first clamping plate
2 times of length.
The first clamping plate and the of same size of the second clamping plate are 7~7.5D.
It is connected between the fixed edge of a knife fixture block of the extensometer and sample clamping plate using bolt.
Compared with prior art, the beneficial effects of the present invention are:
1), rationally, structure is simple for the design of this shearing test clamp, easily operated to use the failure by shear, it can be achieved that rivet
Rather than composite failure.
2), this shearing test clamp, which solves composite panel-aluminium alloy plate riveted joint, not can be carried out shearing test
Problem is capable of testing composite panel-aluminium alloy plate riveted joint shear behavior for convenient and efficient using the fixture.
3), dissimilar material lap riveting joint samples block shear can be measured by the fixture, it can be more
Effectively anti-shearing destruction loaded state of the reflection dissimilar material lap riveting connector in practical structures.
Detailed description of the invention
Fig. 1 is the complete section main view of shearing test clamp of the invention；
Fig. 2 is the right view of shearing test clamp shown in Fig. 1；
Fig. 3 is the schematic perspective view of first clamping plate 100 shown in Fig. 1；
Fig. 4 is the schematic perspective view of second clamping plate 200 shown in Fig. 1；
Fig. 5 is the schematic perspective view of the fixed edge of a knife fixture block 6 of extensometer shown in Fig. 1；
Fig. 6 is the schematic perspective view of fastening plates 2 shown in Fig. 1；
Fig. 7 is the schematic perspective view that sample 16 is sheared shown in Fig. 2；
Fig. 8 is composite panel of the embodiment of the present invention-aluminium alloy plate lap riveting joints shear power-displacement changing curve.
In figure:
100- first clamping plate, 200- second clamping plate, 1- gripping section, 2- fastening plates, 21- positioning key bolt through-hole, 3- fastening
Bolt, 31- positioning key bolt hole, 4- keyway, 5- bolt, the fixed edge of a knife fixture block of 6- extensometer, 61- bayonet, 7- through-hole, 8- are compound
Plate of material, 9- Aluminum alloy rivet, 10- aluminium alloy plate, 11- via hole, 12- fixture block bolt hole, 121- fixture block bolt through-hole, 13-
Positioning step, 141- composite panel placing groove, 142- aluminium alloy plate placing groove, 15- boss guide-localization key, 16- shearing examination
Sample.
Specific embodiment
Technical solution of the present invention is described in further detail in the following with reference to the drawings and specific embodiments, it is described specific
Embodiment is only explained the present invention, is not intended to limit the invention.
A kind of fixture for composite panel and aluminium alloy plate riveting parts shearing test proposed by the present invention, including first
Clamping plate 100,200, two fastening plates 2 of second clamping plate and two fixed edge of a knife fixture blocks 6 of extensometer and relevant connector.
The structure of the first clamping plate 100 and second clamping plate 200 is essentially identical, the structure of same section be include folder
Section 1, positioning step 13 and sample clamping plate are held, self-positioning 13 one end of step to the other end is successively arranged keyway on the sample clamping plate
4, sample placing groove and boss guide-localization key 15；The thickness of sample clamping plate where the perforation of keyway 4, the boss guiding are fixed
The height of position key 15 is 0.1~0.2mm bigger than the thickness of sample clamping plate；The bottom of the sample placing groove is equipped with for placing rivet
Through-hole 7, the side of the sample clamping plate is fixed with the fixed edge of a knife fixture block 6 of extensometer, as shown in figure 5, the extensometer is fixed
It is connected between edge of a knife fixture block 6 and sample clamping plate using bolt 5, i.e., is equipped with fixture block bolt on the fixed edge of a knife fixture block 6 of the extensometer
Via hole 121 is equipped with fixture block bolt hole 12 in the side of sample clamping plate, the fixture block is fixed on sample clamping plate by bolt 5, institute
It states the fixed edge of a knife fixture block 6 of the extensometer in first clamping plate 100 and second clamping plate 200 to be located on different sides, to make to assemble
The fixed edge of a knife fixture block 6 of extensometer on fixture afterwards is just at the same side of fixture, and the fixed edge of a knife of two extensometers
The distance between bayonet 61 of fixture block 6 is matched with extensometer gage length, when using gauge length as the extensometer of 50mm, between the two
Distance is set as 49mm, to fix two stabilizer blades of extensometer.
Sample placing groove in the first clamping plate 100 is composite material placing groove 141, compound in sample for placing
Plate of material 8, the sample placing groove in the second clamping plate 200 is aluminium alloy plate placing groove 142, for placing aluminium alloy in sample
Plate；The width of aluminium alloy plate placing groove 142 in the second clamping plate 200 is put with the composite material in the first clamping plate 100
The of same size of slot 141 is set, is 2.5D, wherein D is the diameter of rivet in sample, the length of the aluminium alloy plate placing groove 142
Degree is longer than the length of the composite material placing groove 141, can be 2 times.The first clamping plate 100 and the second clamping plate 200
It is of same size, as long as reaching intensity requirement, can be 7~7.5D.
The bottom of the aluminium alloy plate placing groove 142 is equipped with the via hole 11 of a disassembly sample.
As depicted in figs. 1 and 2, it when which assembles, is clamped according to the first clamping plate 100 and the second clamping plate 200
Section 1 is located at both ends and sample clamping plate mutually fastens, wherein and two boss guide-localization keys 15 are embedded in two keyways 4 respectively,
The upper surface of described boss guide-localization key 15 is fixed with fastening plates 2, as shown in fig. 6, setting in the fastening plates 2, there are two positioning key spiral shells
Fastening plates 2 are fixed on the boss guide-localization key 15, the length ratio of the keyway 4 by bolt via hole 21 by fastening bolt 3
The length for being inlaid in boss guide-localization key 15 therein grows 2~2.5D.After fixture assembly, 100 He of first clamping plate
The fixed edge of a knife fixture block 6 of extensometer in second clamping plate 200 is located at ipsilateral.
Present clip in actual use, is first cut the composite panel cut-aluminium alloy plate riveted joint
Sample 16, including composite panel 8, Aluminum alloy rivet 9 and aluminium alloy plate 10 are cut, as shown in fig. 7, being packed into 100 He of first clamping plate
(i.e. at the junction of the two by composite material after first clamping plate 100 and the fastening of second clamping plate 200 in the cavity of second clamping plate 200
The through-hole 7 of plate placing groove 141 and aluminium alloy plate placing groove 142 and two slot slot bottoms constitutes the sky for placing shearing sample
Chamber), at this point, the boss guide-localization key 15 on two clamping plates is inlaid in respectively in the keyway 4 of another clamping plate, then, two
Pass through 2 fastening bolt 31 and 1 fastening plates 2 on a boss guide-localization key 15 for first clamping plate 100 and second clamping plate 200
Assembly is fixed together.
In the present invention, in order to realize the shear tension load of lap riveting connector, first clamping plate 100 and second clamping plate 200
The basic configuration of shape is symmetrical L-type shape, shown as shown in Figure 1, Figure 3 and Figure 4, and two clamping plates can be embedding by reversely fastening
It is nested together to form shear tension effect, the outer end for assembling latter two clamping plate is gripping section, during test and universal tensile
Test machine clamping end is fixedly connected.
As shown in Figure 3 and Figure 4, the recessed of shearing sample 16 is placed for accommodating in first clamping plate 100 and second clamping plate 200
The bottom of slot is equipped with through-hole 7, which can not only tear open with the snap rivet head of fixed shear sample, but also after being convenient for shearing test
Shearing sample is unloaded, meanwhile, after first clamping plate 100 and the fastening of second clamping plate 200, the position of through-hole 7 is coaxial on two clamping plates,
The positioning action of shearing sample 16 can be played.
Since the size of the aluminium alloy plate 9 of shearing sample 16 is greater than the size of composite panel 8, in second clamping plate
The cavity (i.e. aluminium alloy plate placing groove 142) for placing aluminium alloy plate being arranged on 200 is larger, opens up two in its slot bottom and leads to
Hole, can be in order to disassembly shearing sample 16 after shearing test, and one of through-hole can also be used in the upset head of fixing rivet, with first
Through-hole 7 on clamping plate 100 matches positioning action when closing shearing sample installation.In the present invention, 141 He of composite panel placing groove
The bulk that aluminium alloy plate placing groove 142 is formed should be fitted close with the outer profile size of shearing sample 16, that is, be easily installed
Composite panel-aluminium alloy plate riveted joint shearing sample 16 cannot excessively loosen again after installation, avoid result in and be sheared
During test, shearing sample slides in cavity, influences the reliability of test result.
Boss guide-localization key 15 is provided in first clamping plate 100 and second clamping plate 200 of the invention, it is corresponding another
The matched position of one clamping plate offers the keyway 4 for penetrating plate thickness, when assembling jig, boss guide-localization key 15 and keyway 4
Cooperation, since the length of keyway 4 is longer than the length of its protrusions guide-localization key 15, the effect of boss guide-localization key 15 be for
Make fixture in the drawing process of shearing test, along force direction phase can occur for first clamping plate 100 and second clamping plate 200
To movement, and due to the position-limiting action of keyway 4, it can prevent first clamping plate 100 and second clamping plate 200 from occurring during stretching
Deflection.The upper surface of each protrusion guide-localization key 15 is opened up there are two positioning key bolt hole 31, by fastening bolt 3 with 2
First clamping plate 100 and second clamping plate 200 are fixed together by a fastening plates 2, and are clearance fit, prevent in shear tension process
In, first clamping plate 100 and second clamping plate 200 rotate along force direction and are separated.
Due in the present invention, the height of the boss guide-localization key 15 is bigger by 0.1 than the thickness of sample clamping plate (part)~
0.2mm, so that feather key protrudes from the bottom surface of another clamping plate, in this way can after first clamping plate 100 and second clamping plate 200 are assembled
Guarantee that first clamping plate 100 and second clamping plate 200 are fixed together by fastening bolt 3 and 2 fastening plates 2, and fastening plates 2
There are gap between the bottom surface of another clamping plate, it can prevent two opposite sliding surfaces of clamping plate in shearing test drawing process from matching
Tension is closed, larger frictional resistance is generated, shearing test test result is affected greatly.
In the present invention, fixture block bolt hole 12 is offered respectively in the side of first clamping plate 100 and second clamping plate 200, is connected
Extensometer fixes edge of a knife fixture block 6, to fix extensometer.It is provided with the fixed bayonet 61 of V-arrangement on the fixed edge of a knife fixture block 6 of extensometer, uses
Two notches on fixed extensometer stabilizer blade.The fixed edge of a knife fixture block 6 of extensometer is provided with one with the clamping plate connecting place being connect
Small boss makes the fixed edge of a knife fixture block 6 of extensometer and only contacts in boss bottom surface between the clamping plate connected, extensometer fixing cutter
There are larger gaps between mouth fixture block 6 and the side of the clamping plate connected, convenient for being fixed on extensometer stabilizer blade by rubber band
Between the bayonet 61 of the fixed edge of a knife fixture block 6 of two extensometers, and the extensometer fixing cutter in shearing test drawing process can be prevented
It rubs between mouth fixture block 6 and the clamping plate connected, experimental test result is impacted.
When carrying out shearing test using present clip, composite panel-aluminium alloy plate riveted joint shearing examination is obtained
The basic demand of sample 16 is: since 10 intensity of aluminium alloy plate is greater than the intensity of composite panel 8, and rivet 9 is aluminium alloy, if riveting
The shearing sample 16 of connector is designed like the tensile shear sample of spot welding lap joint, directly clamping composite panel and aluminium
Alloy sheets form, shearing test drawing process, composite panel will be pulled through first, can not obtain composite panel-aluminium alloy
Plate riveted joint shear strength.The composite panel 8 that the shearing sample 16 of riveted joint is retained cannot be excessive, prevents in rivet
Before cutting, composite panel 8, since pressure acts on, is sent out in the cavity (composite panel placing groove 141) of first clamping plate 100
Raw broken, shearing test can not continue, and can not obtain effective experimental test result.As shown in fig. 7, riveted joint
It is more to shear 10 material of aluminium alloy plate that sample 16 retains, can play the role of effectively playing the fixed constraint to rivet 9 in this way,
It prevents during the test, sample deflects, and is detached from cavity, causes stress not in shear plane, and sample twists change
Shape is not acted on by pure shear power, is impacted to test result.But simultaneously it should also be mentioned that 10 stress side of aluminium alloy plate
Stayed material cannot be excessive, as shown in Figure 1, occuring bending and deformation after preventing 10 stress of aluminium alloy plate, tests shear tension and ties
Fruit impacts.
Using combined with Figure 1 and Figure 2, to practice of composite plate in space flight structure-aluminium alloy plate lap riveting connector should
The fixture of design carries out shearing test test process explanation.
First according to obtained composite panel-aluminium alloy plate lap riveting connector test plate (panel), design determination carries out shearing drawing
Stretch the size of the shearing sample 16 of the small size of test.The rivet 9 of the shearing sample 16 for the riveted joint that need to be tested is basic
Diameter is 4.0mm, the thickness 2.9mm of composite panel 8, the thickness 2.9mm of aluminium alloy plate 10.The shearing sample 16 of final design
Size is as follows: the size of composite panel 8 is 14mm × 12mm × 2.9mm, the size of aluminium alloy plate 10 be 32mm × 14mm ×
2.9mm, wherein as shown in Figure 1 and Figure 7, composite panel 8 is concordant with a side end face of aluminium alloy plate 10, which is aluminium conjunction
The stress end face of golden plate 10, and another side end face of composite panel 8 is stress end face, 8 force side identity distance riveting of composite panel
The axial line distance of nail 9 is 5mm, and the axial line distance of the force side identity distance rivet 9 of aluminium alloy plate 10 is 7mm, the composite wood processed
Flitch-aluminium alloy plate lap riveting connector shearing sample 16 is as shown in Figure 7.
Then clamp for machining, first clamping plate 100 are processed using 45 steel according to the technique and scheme of the present invention, gripping section size
For 40mm × 30mm × 20mm, L-type active section (i.e. sample clamping plate part) is determined having a size of 160mm × 40mm × 10mm protrusion guiding
The size of position key 15 is 32mm × 12mm × 10.2mm (and the sample clamping plate segment thickness 0.2mm for being higher than first clamping plate 100), is worn
The size of the keyway 4 of saturating plate thickness is 47mm × 12mm × 10mm；Second clamping plate 200 is equally processed using 45 steel, in addition to intermediate empty
Outside the size of chamber (aluminium alloy plate placing groove 142), remaining size is as with first clamping plate 100；Fastening plates 2 are added using Q235 steel
Work, basic size are 40mm × 20mm × 5mm, open the through-hole there are two diameter for 6.2mm above；Extensometer fixes edge of a knife fixture block
6 are processed using Q235 steel, and basic size is 20mm × 16mm × 9mm.
Montage test is stretched to carry out on CSS-44100 electronic universal tester.It is first when carrying out tensile shear tension test
The fixed edge of a knife fixture block 6 of two extensometers is first separately fixed at the first and second folders by the socket cap hexagon socket head cap screw of M5 × 16
The side of plate 100 and 200.Then the composite panel processed-aluminium alloy plate lap riveting connector montage sample 16 is filled
Enter in (being formed by composite panel placing groove 141 and aluminium alloy plate placing groove 142) cavity of shearing clamp, then with M6 ×
First clamping plate 100 and second clamping plate 200 are fixed together by 12 socket cap hexagon socket head cap screw by fastening plates 2, and assembly is fixed
Good shearing clamp is as shown in Figure 1.Finally 100 gripping section of first clamping plate is connected with fixed chuck on universal tensile testing machine,
The gripping section of second clamping plate 200 is connected with movable chuck on universal tensile testing machine, is that 50mm resistance-type extensometer is consolidated by gauge length
It is scheduled between the fixed edge of a knife fixture block 6 of two extensometers, the vertical direction for keeping the montage fixture assembled is paid attention in installation process
Axis it is parallel with the axis on universal test machine grip holder vertical direction, prevent to reverse.After the installation is completed, start omnipotent drawing
Testing machine is stretched, starts to carry out shearing test, computer acquires test data in real time, obtains shear-type load with the change procedure of displacement.
After the completion of shearing test, shearing clamp is dismantled, every group of parameter chooses 3 samples (three specimen sizes and realities
Test condition) repetitive test is carried out, it is strong to verify composite panel under the parameter-aluminium alloy plate lap riveting joints shear
The stability of degree records shear-type load with the change curve of stretching displacement.The test data of acquisition is handled, is obtained compound
Plate of material-aluminium alloy plate lap riveting joints shear power-displacement changing curve, as shown in figure 8, wherein maximum shear stress is riveting
Connect the block shear of lap joint sample.
Shear tension grip device of the present invention has simple structure, installing and dismounting and convenient operating maintenance, it can be achieved that compound
The riveted joint shear tension of material and aluminium alloy plate dissimilar material is tested, and test process is stablized, and test data is reproducible, can
Effectively evaluate the anti-shearing damage capability of true riveted joint.
Although above in conjunction with attached drawing, invention has been described, and the invention is not limited to above-mentioned specific implementations
Mode, the above mentioned embodiment is only schematical, rather than restrictive, and those skilled in the art are at this
Under the enlightenment of invention, without deviating from the spirit of the invention, many variations can also be made, these belong to of the invention
Within protection.
Claims (5)
1. a kind of fixture for composite panel and aluminium alloy plate riveting parts shearing test, which includes first clamping plate
(100) and second clamping plate (200), which is characterized in that the first clamping plate (100) and second clamping plate (200) have following identical
Partial structure includes gripping section (1), positioning step (13) and sample clamping plate, self-positioning step on the sample clamping plate
(13) one end to the other end is successively arranged keyway (4), sample placing groove and boss guide-localization key (15)；The keyway (4) is passed through
The thickness of sample clamping plate where logical, the height of the boss guide-localization key (15) is bigger than the thickness of sample clamping plate by 0.1~
0.2mm；The bottom of the sample placing groove is equipped with the through-hole (7) for placing rivet, and the side of the sample clamping plate is fixed with
Extensometer is fixed edge of a knife fixture block (6)；
Sample placing groove on the first clamping plate (100) is composite material placing groove (141), compound in sample for placing
Plate of material (8), the sample placing groove on the second clamping plate (200) is aluminium alloy plate placing groove (142), for placing in sample
Aluminium alloy plate (10)；The width of aluminium alloy plate placing groove (142) on the second clamping plate (200) and the first clamping plate
(100) composite material placing groove (141) on it is of same size, be 2.5D, wherein D is the diameter of rivet in sample, described
The length of aluminium alloy plate placing groove (142) is longer than the length of the composite material placing groove (141)；
Extensometer fixed edge of a knife fixture block (6) on the first clamping plate (100) and second clamping plate (200) is located at different sides
On；The bottom of the aluminium alloy plate placing groove (142) is equipped with the via hole (11) of a disassembly sample；
The fixture assemble when, according to the first clamping plate (100) and the second clamping plate (200) gripping section (1) be located at both ends and
Sample clamping plate mutually fastens, wherein two boss guide-localization keys (15) respectively in two keyways (4), lead by the boss
Fastening plates (2) are fixed with to the upper surface of positioning key (15)；After fixture assembly, the first clamping plate (100) and second clamping plate
(200) extensometer fixed edge of a knife fixture block (6) on is located at ipsilateral.
2. being used for the fixture of composite panel and aluminium alloy plate riveting parts shearing test according to claim 1, feature exists
In the length that the length ratio of the keyway (4) is inlaid in boss guide-localization key (15) therein grows 2~2.5D.
3. being used for the fixture of composite panel and aluminium alloy plate riveting parts shearing test according to claim 1, feature exists
In the length of the aluminium alloy plate placing groove (142) on the second clamping plate (200) is compound on the first clamping plate (100)
2 times of the length of material placing groove (141).
4. being used for the fixture of composite panel and aluminium alloy plate riveting parts shearing test according to claim 1, feature exists
In the first clamping plate (100) and the of same size of the second clamping plate (200) are 7~7.5D.
5. being used for the fixture of composite panel and aluminium alloy plate riveting parts shearing test according to claim 1, feature exists
In connected using bolt (5) between the extensometer fixed edge of a knife fixture block (6) and sample clamping plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710541721.7A CN107421805B (en) | 2017-07-04 | 2017-07-04 | A kind of fixture for composite panel and aluminium alloy plate riveting parts shearing test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710541721.7A CN107421805B (en) | 2017-07-04 | 2017-07-04 | A kind of fixture for composite panel and aluminium alloy plate riveting parts shearing test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107421805A CN107421805A (en) | 2017-12-01 |
| CN107421805B true CN107421805B (en) | 2019-07-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710541721.7A Expired - Fee Related CN107421805B (en) | 2017-07-04 | 2017-07-04 | A kind of fixture for composite panel and aluminium alloy plate riveting parts shearing test |
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| CN110553930B (en) * | 2019-09-17 | 2022-03-18 | 大连宇晨高新材料有限公司 | Improved test device and test method for shear performance of composite material base/fiber interface |
| CN113029766A (en) * | 2019-12-24 | 2021-06-25 | 中核建中核燃料元件有限公司 | Fixture for detecting shearing force of spot welding of spacer grid guide pipe and spacer grid |
| CN111239040A (en) * | 2020-01-20 | 2020-06-05 | 西北工业大学 | Asymmetric composite material interface shear mechanical property test device and test method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2151798B (en) * | 1983-12-16 | 1988-05-18 | Schenck Ag Carl | Testing the shearing strength of jointed test pieces |
| CN103868785A (en) * | 2014-03-12 | 2014-06-18 | 哈尔滨工业大学 | Riveted joint mechanical property testing device |
| CN205404276U (en) * | 2016-03-15 | 2016-07-27 | 青岛科技大学 | Rivet shear test assists fixture device |
| CN106226155A (en) * | 2016-07-06 | 2016-12-14 | 上海交通大学 | A kind of composite thin plate inplane shear test fixture and test method |
-
2017
- 2017-07-04 CN CN201710541721.7A patent/CN107421805B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2151798B (en) * | 1983-12-16 | 1988-05-18 | Schenck Ag Carl | Testing the shearing strength of jointed test pieces |
| CN103868785A (en) * | 2014-03-12 | 2014-06-18 | 哈尔滨工业大学 | Riveted joint mechanical property testing device |
| CN205404276U (en) * | 2016-03-15 | 2016-07-27 | 青岛科技大学 | Rivet shear test assists fixture device |
| CN106226155A (en) * | 2016-07-06 | 2016-12-14 | 上海交通大学 | A kind of composite thin plate inplane shear test fixture and test method |
Non-Patent Citations (1)
| Title |
|---|
| 一种铆接试验夹具的设计;王进;《科技视界》;20131231;58 |
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