CN208187854U - A kind of nonstandard composite laminated plate aperture compressive strength test tool - Google Patents
A kind of nonstandard composite laminated plate aperture compressive strength test tool Download PDFInfo
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- CN208187854U CN208187854U CN201820781629.8U CN201820781629U CN208187854U CN 208187854 U CN208187854 U CN 208187854U CN 201820781629 U CN201820781629 U CN 201820781629U CN 208187854 U CN208187854 U CN 208187854U
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- composite laminated
- laminated plate
- screw hole
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- 238000012360 testing method Methods 0.000 title claims abstract description 75
- 239000002131 composite material Substances 0.000 title claims abstract description 63
- 238000000465 moulding Methods 0.000 claims description 2
- 238000012669 compression test Methods 0.000 abstract description 8
- 230000008961 swelling Effects 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 5
- 229920013657 polymer matrix composite Polymers 0.000 description 4
- 239000011160 polymer matrix composite Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011120 plywood Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000007655 standard test method Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000011365 complex material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009510 drug design Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A kind of nonstandard composite laminated plate aperture compressive strength test tool, including be symmetrically distributed on same axis, mutually independent two clamping parts, clamping part one end is used for joint test machine, and the other end is used for clamping test pieces；On the holder portion, it is provided with the clip slot of three faces opening along pressure-loaded direction, is provided with the screw hole of connection clip slot on the holder portion, perpendicular to pressure-loaded direction, bolt is equipped in screw hole；Clip slot one side wall is provided with backing plate, the groove to match with screw hole is provided on backing plate；Test specimen presss from both sides load region and protrudes into clip slot and simultaneously with clip slot side wall and backing plate abutting contact, and bolt screw-in screw hole is interior and extends in the groove of backing plate to clamp test specimen.The utility model is a kind of simple tooling for being exclusively used in nonstandard composite laminated plate aperture compressive strength test, test specimen can not only be avoided to occur unstability and end swelling during compression test, and from test specimen capable of being prevented to be stuck, and easy to disassemble.
Description
Technical field
The utility model relates to a kind of compression test fixtures, and in particular to a kind of nonstandard composite laminated plate aperture pressure
Contracting strength test tooling.
Background technique
Composite material is from appearance, the advantages that can just being designed with its distinctive high-strength light, mechanical property, by research people
The favor of member and engineers and technicians, application are extremely wide.Composite material especially polymer matrix composite, to various damages
Extremely sensitive, the residual intensity that damage will lead to composite structure seriously reduces, and influences the use of composite material.Containing centre bore
A kind of structure type of the symmetrical equilibrium composite laminated plate as exemplary complex material, be widely used in composite material and permitted
With in value determination and damage tolerance performance assessment, the research of aperture compression performance is also always the research of composite material residual intensity
Emphasis.
Currently, the test of composite laminated plate aperture compressive strength is frequently with ASTM D 6484M-2009 " Standard
Test Method for Open-Hole Compressive Strength of Polymer Matrix Composite
The standard test method of Laminates polymer matrix composite laminate aperture compressive strength " or GB/T 30968.4-2014
Rule in " polymer matrix composite laminate aperture/the 4th part of loaded method for testing performance: aperture compressive strength test method "
Fixed test method executes, this two parts of standards give two kinds of compression test toolings, when being used for compression test to testpieces into
Row grips.But this two parts of standards can only be directed to code test part (long 300mm, width 36mm, thickness 3-5mm, central symmetry hole
Diameter 6mm) carry out test, for the off-gauge composite laminated plate of symmetrical equilibrium containing the centre bore testpieces of engineering in practice
(length is nonstandard, width is nonstandard, thickness is nonstandard, aperture is nonstandard etc.), can only be partly referring to, and can not be according to work specified in standard
Put into row test.
In addition, CA206258310U discloses a kind of non-standard compression of plate containing damaged composite material residual intensity performance test
Fixture, including top plate, gusset, top slide, side plate, pedestal sliding block, pedestal, the pedestal are rectangular parallelepiped structure, pedestal top
There are a protrusion groove in two sides, and there is a symmetrical lateral screw hole at intermediate position on groove, base upper surface be axially distributed with it is several two-by-two
Symmetrical screw hole is used for mounting seat sliding block and gusset；The gusset is L-shaped structure, and the opposite wall surface of two gussets has
Corresponding slot, side are fixed with deep floor, and the two sides that deep floor is located on gusset bottom surface are machined with long slot hole, two gussets
It is respectively embedded in base groove and is symmetrically installed；Four blocks of side plates are separately fixed on the opposite wall surface of gusset, and and top slide
It is coupled with pedestal sliding block, is used for clamping sample；The top plate has symmetrically on top plate by two close end between two gussets
There are rectangular baffle in through-hole, top plate two sides, there is screw hole on baffle, and top slide is located at top plate in the following, and connecting with top plate；Pass through examination
It tests compressing head and moves downward and act on top plate, top plate transfers load to sample.CN105253323A discloses a kind of composite wood
Expect that compression test tooling of the stiffened panel with cross-brace, the tooling are suitable for composite stiffened structure end compression verification,
Apply the cross-brace power of simulation rib support to testpieces by cross-brace module.Although aforementioned fixture and tooling and use
In compression test, but it is larger with the aperture compressive strength test difference of composite laminated plate, can not be applied to aperture pressure
Contracting test, and structure is complicated.
Utility model content
The utility model aim is to provide a kind of simply nonstandard composite laminated plate aperture compressive strength examination of structure
Tooling is tested, to meet the requirement of off-standard size composite material aperture compression test.
To achieve the above object, the utility model adopts the following technical solution.
A kind of nonstandard composite laminated plate aperture compressive strength test tool, including be symmetrically distributed on same axis,
Mutually independent two clamping parts, clamping part one end are used for joint test machine, and the clamping part other end is for clamping nonstandard composite wood
Bed of material plywood test specimen；On the holder portion, pressure-loaded direction is provided with clip slot, clip slot extends radially through clamping part, that is, is pressing from both sides
The clip slot for being provided with three faces opening in portion, along pressure-loaded direction is held, is arranged on the holder portion, perpendicular to pressure-loaded direction
There is the screw hole of connection clip slot, bolt is equipped in screw hole；Clip slot one side wall is provided with backing plate, is provided on backing plate
The groove to match with screw hole；Nonstandard composite laminated plate test specimen folder carry region protrude into clip slot and simultaneously with clip slot side wall and
Backing plate abutting contact, bolt are screwed in screw hole and are extended in the groove of backing plate to press from both sides nonstandard composite laminated plate test specimen
Tightly；The specification of clip slot should meet simultaneously:
The nonstandard composite laminated plate test specimen examination of clip slot length=nonstandard composite laminated plate test specimen test specimen total length/2-
Thickness=pad of part aperture radius-(1-3) mm, clip slot width=nonstandard composite laminated plate test specimen specimen width, clip slot is thick
Spend plate+nonstandard composite laminated plate test specimen test specimen thickness+(3-5) mm.
Further, above-mentioned clamping part is integrally formed, and above-mentioned clip slot is U-lag.
Further, it is uniformly arranged the screw hole of multiple connection clip slots on the holder portion, perpendicular to pressure-loaded direction,
It is equipped with bolt in each screw hole, the groove to match with each screw hole is provided on backing plate.
Utility model has the advantages that the utility model is a kind of strong for nonstandard composite laminated plate aperture compression
The simple tooling for spending test, to the sizes of composite laminated plate aperture compression specimens, there is no limit be suitable for engineering in practice
The various off-gauge composite laminated plate compressive strength of symmetrical equilibrium containing centre bore tests；The utility model passes through clip slot, spiral shell
The mutual cooperation of bolt, backing plate and backing plate groove can not only avoid nonstandard composite laminated plate test specimen in compression test process
In there is unstability and end swelling, prevent nonstandard composite laminated plate test specimen to be stuck, and easy to disassemble；This is practical
New structure is simple, can substantially save frock cost, easy for installation and convenient for operation.
Detailed description of the invention
Fig. 1 is the stereoscopic schematic diagram of clamping part in the utility model embodiment；
Fig. 2 is the side schematic view of clamping part in the utility model embodiment；
Fig. 3 is the schematic diagram of backing plate in the utility model embodiment；
Fig. 4 is the use shape of nonstandard composite laminated plate aperture compressive strength test tool in the utility model embodiment
State schematic diagram；In figure, 1- clamping part, 2- clip slot, 3- backing plate, 4- bolt, 5- screw hole, 6- groove, 7- are nonstandard composite laminated
Plate test specimen, the hole 8-.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing, it is pointed out here that following embodiment cannot understand
For the limitation to scope of protection of the utility model, those of ordinary skill in the art's content according to the present utility model is made some non-
The modifications and adaptations of essence, in scope of protection of the utility model.
Embodiment 1
A kind of nonstandard composite laminated plate test specimen aperture compressive strength test tool, as shown in Figure 1, Figure 2 and Figure 3, packet
Include be symmetrically distributed on same axis, mutually independent two clamping parts, clamping part one end is used for joint test machine, and clamping part is another
One end is for clamping nonstandard composite laminated plate test specimen；On the holder portion, pressure-loaded direction is provided with clip slot, clip slot
Clamping part is extended radially through, i.e., is provided with the clip slot of three faces opening on the holder portion, along pressure-loaded direction, on the holder portion,
It is provided with the screw hole of connection clip slot perpendicular to pressure-loaded direction, bolt is equipped in screw hole；It is set in clip slot one side wall
It is equipped with backing plate, the groove to match with screw hole is provided on backing plate；Nonstandard composite laminated plate test specimen folder carries region and protrudes into
In clip slot and simultaneously with clip slot side wall and backing plate abutting contact, bolt screws in screw hole and extends in the groove of backing plate with will be non-
Composite laminated plate test specimen is marked to clamp.
Preferably, the specification of above-mentioned clip slot should meet simultaneously: the length of clip slot is tried equal to nonstandard composite laminated plate
Nonstandard composite laminated plate test specimen aperture radius-(1-3) mm of part total length/2-, the width of clip slot and nonstandard composite layer
Plywood test specimen is wide, and the thickness of clip slot is greater than the sum of the thickness of backing plate and nonstandard composite laminated plate test specimen (3-5) mm.Press from both sides
The specification of slot should meet formula [I], [II], [III] simultaneously, and clip slot length=nonstandard composite laminated plate test specimen total length/2- is non-
Composite laminated plate test specimen aperture radius-(1-3) mm ... formula [I] is marked, hole 8 described in aperture radius is as shown in Figure 4；Clip slot is wide
Degree=nonstandard composite laminated plate specimen width ... formula [II]；The thickness of clip slot=mat thickness plate+nonstandard composite layer
The thickness of plywood test specimen+(3-5) mm ... formula [III], in order to which nonstandard composite laminated plate test specimen is mounted in clip slot,
Constitute good cross-brace.
Further, above-mentioned clamping part one machining molding, above-mentioned clip slot are U-lag.
Further, it is uniformly arranged the screw hole of multiple connection clip slots, spiral shell on the holder portion, perpendicular to pressure-loaded direction
The quantity in hole can press from both sides according to nonstandard composite laminated plate test piece end and carry zone length rational design, match in each screw hole
Conjunction is provided with bolt, and the model of bolt generally selects M8 or M10, and the groove to match with each screw hole is provided on backing plate,
It is uniformly distributed with the lateral loading force for guaranteeing that bolt applies nonstandard composite laminated plate test piece end, bolt is pulled using torsion
Hand is tightened, and screw-down torque is 7Nm (referring to ASTM D 6484M-2009).
Application method and principle: as shown in figure 4, testing machine clamps clamping part upper end when test, and along clamping part axial direction
Apply load.In loading procedure, axial compressive force is applied to clamping part by testing machine, pressure is transferred to nonstandard compound through clamping part
Material laminate test piece end；Lateral loading force is applied to test piece end by bolt and backing plate, the lateral folder that bolt applies carries
The folder that power evenly spreads to test specimen carries region, presss from both sides load region for test specimen and provides uniform cross-brace power, avoids test specimen because of end
It does not fix support and occurs unstability and end expansion in load.Using backing plate, can also prevent nonstandard composite laminated
Plate test specimen is stuck in clip slot.After loaded, bolt is unclamped, backing plate is removed, can facilitated, easily unload test specimen, avoid
Test specimen is stuck in folder load slot because end expands.
The utility model is a kind of simple tooling for the test of nonstandard composite laminated plate aperture compressive strength, to multiple
There is no limit it is various off-gauge containing centre bore pair in practice to be suitable for engineering to the size of condensation material laminate aperture compression specimens
Claim balanced composite laminated plate compressive strength test.
Claims (3)
1. a kind of nonstandard composite laminated plate aperture compressive strength test tool, including be symmetrically distributed on same axis, phase
Mutual independent two clamping parts (1), clamping part (1) one end are used for joint test machine, and clamping part (1) other end is nonstandard for clamping
Composite laminated plate test specimen (7)；It is characterized by: being provided with three faces opening on clamping part (1), along pressure-loaded direction
Clip slot (2), on clamping part (1), perpendicular to pressure-loaded direction be provided with connection clip slot (2) screw hole (5), in screw hole
(5) bolt (4) are equipped in；In clip slot (2), one side wall is provided with backing plate (3), is provided on backing plate (3) and screw hole
(5) groove (6) to match；Nonstandard composite laminated plate test specimen (7) folder load region is protruded into clip slot (2) and while and clip slot
(2) side wall and backing plate (3) abutting contact, bolt (4) are screwed in screw hole (5) and are extended in the grooves (6) of backing plate (3) with will be non-
Composite laminated plate test specimen (7) are marked to clamp；The specification of the clip slot (2) should meet formula [I], [II], [III] simultaneously:
Clip slot (2) length=nonstandard composite laminated plate test specimen (7) of nonstandard composite laminated plate test specimen (7) total length/2-
Aperture radius-(1-3) mm ... ... ... ... ... ... ... formula [I]；
Clip slot (2) width=nonstandard composite laminated plate test specimen (7) width ... ... ... ... ... ... formula [II]；
The thickness of clip slot (2)=mat thickness plate+nonstandard composite laminated plate test specimen (7) thickness+(3-5) mm ... formula [III].
2. nonstandard composite laminated plate aperture compressive strength test tool according to claim 1, it is characterised in that: institute
Clamping part (1) integrated molding is stated, the clip slot (2) is U-lag.
3. nonstandard composite laminated plate aperture compressive strength test tool according to claim 1 or 2, feature exist
In: the screw hole of multiple connection clip slots (2) is uniformly arranged on the clamping part (1), perpendicular to pressure-loaded direction
(5), bolt (4) are equipped in each screw hole (5), are provided on the backing plate (3) and match with each screw hole (5)
Groove (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820781629.8U CN208187854U (en) | 2018-05-24 | 2018-05-24 | A kind of nonstandard composite laminated plate aperture compressive strength test tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820781629.8U CN208187854U (en) | 2018-05-24 | 2018-05-24 | A kind of nonstandard composite laminated plate aperture compressive strength test tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208187854U true CN208187854U (en) | 2018-12-04 |
Family
ID=64428543
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|---|---|---|---|
| CN201820781629.8U Active CN208187854U (en) | 2018-05-24 | 2018-05-24 | A kind of nonstandard composite laminated plate aperture compressive strength test tool |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110132731A (en) * | 2019-06-24 | 2019-08-16 | 上海艾柯检测科技有限公司 | A kind of frock clamp and method detecting composite material compressive strength |
| CN110274825A (en) * | 2019-07-17 | 2019-09-24 | 北京电子工程总体研究所 | High-modules carbon fibre reinforced resin based composites longitudinal compression performance test methods |
| CN113804538A (en) * | 2021-08-05 | 2021-12-17 | 北京航空航天大学 | Anti-destabilization clamp for prefabricated cracks of CT test piece under pressure-pressure cyclic load |
| CN114199761A (en) * | 2021-12-23 | 2022-03-18 | 国网山东省电力公司临沂供电公司 | Be applied to high accuracy utensil of survey bonding sample intensity |
-
2018
- 2018-05-24 CN CN201820781629.8U patent/CN208187854U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110132731A (en) * | 2019-06-24 | 2019-08-16 | 上海艾柯检测科技有限公司 | A kind of frock clamp and method detecting composite material compressive strength |
| CN110274825A (en) * | 2019-07-17 | 2019-09-24 | 北京电子工程总体研究所 | High-modules carbon fibre reinforced resin based composites longitudinal compression performance test methods |
| CN110274825B (en) * | 2019-07-17 | 2021-11-30 | 北京电子工程总体研究所 | Method for testing longitudinal compression performance of high-modulus carbon fiber reinforced resin matrix composite |
| CN113804538A (en) * | 2021-08-05 | 2021-12-17 | 北京航空航天大学 | Anti-destabilization clamp for prefabricated cracks of CT test piece under pressure-pressure cyclic load |
| CN114199761A (en) * | 2021-12-23 | 2022-03-18 | 国网山东省电力公司临沂供电公司 | Be applied to high accuracy utensil of survey bonding sample intensity |
| CN114199761B (en) * | 2021-12-23 | 2024-02-27 | 国网山东省电力公司临沂供电公司 | High-precision instrument applied to measuring strength of bonding sample |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231226 Address after: 400039 Chongqing Jiulongpo Yuzhou Road No. 33 Patentee after: Southwest Institute of technology and engineering of China Ordnance Equipment Group Address before: 400039 Chongqing Jiulongpo Yuzhou Road No. 33 Patentee before: NO 59 Research Institute OF CHINA ORDNACE INDUSTRY |