CN206756090U - Structural adhesive curing stress testing device - Google Patents
Structural adhesive curing stress testing device Download PDFInfo
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- CN206756090U CN206756090U CN201720520741.1U CN201720520741U CN206756090U CN 206756090 U CN206756090 U CN 206756090U CN 201720520741 U CN201720520741 U CN 201720520741U CN 206756090 U CN206756090 U CN 206756090U
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- solidification
- platform
- organic glass
- transparent organic
- structure glue
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- 239000000853 adhesive Substances 0.000 title claims abstract description 16
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 16
- 238000009662 stress testing Methods 0.000 title abstract 2
- 238000007711 solidification Methods 0.000 claims abstract description 98
- 230000008023 solidification Effects 0.000 claims abstract description 95
- 239000003292 glue Substances 0.000 claims abstract description 83
- 239000011521 glass Substances 0.000 claims abstract description 48
- 238000012360 testing method Methods 0.000 claims abstract description 25
- 230000006750 UV protection Effects 0.000 claims abstract description 20
- 239000011888 foil Substances 0.000 claims description 35
- 229920005479 Lucite® Polymers 0.000 claims description 15
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 15
- 229920006335 epoxy glue Polymers 0.000 claims description 4
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 238000010998 test method Methods 0.000 abstract description 4
- 230000003760 hair shine Effects 0.000 abstract 1
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 238000004321 preservation Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 21
- 238000000034 method Methods 0.000 description 16
- 230000003287 optical effect Effects 0.000 description 12
- 238000004026 adhesive bonding Methods 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 6
- 230000005483 Hooke's law Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 244000137852 Petrea volubilis Species 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a solidification stress testing arrangement is glued to space flight structure has solved the problem that stress and measuring condition that current testing arrangement solidification structure glued when unable measuring light shines and actual engineering condition are inconsistent. The device comprises an ultraviolet protection heat preservation box, a strain amplifier, a data acquisition instrument, an ultraviolet lamp, a strain gauge, a transparent organic glass sheet and a curing platform; the shape and size of the upper end surface of the curing platform are the same as those of the actual adhesive structural adhesive, and the curing platform is provided with an adhesive injection hole and a plurality of pillars; the ultraviolet lamp is arranged at the upper end of the strain gauge; the strain gauge is arranged at the upper end of the transparent organic glass sheet, the transparent organic glass sheet is arranged at the upper end of the curing platform, and the structural adhesive is arranged in a gap formed by the transparent organic glass sheet and the curing platform; the strain gauge is connected with a strain amplifier, and the strain amplifier is connected with a data acquisition instrument. The utility model discloses testing arrangement simple structure, test method is simple, is applicable to the test of different formula structure glue curing stress.
Description
Technical field
The utility model belongs to stress measurement field, and in particular to a kind of space structure adhesive curing stress test device.
Background technology
Camera space has very high requirement to the face shape of optical element, in order to reduce erection stress to optical component surface shape
Influence, optical element typically carries out be bonded, structure glue caused solidification in the curing process with its supporting construction using structure glue
Stress turns into the principal element for influenceing optical component surface shape.In addition, structure glue solidification internal stress can make optical element and supporting construction
Between produce prestressing force, the stress higher than predicted value is produced when being subjected to mechanical environment and thermal environment and testing, increases space flight load
Risk.Therefore before optical element and supporting construction viscose glue, it is necessary to should to solidification of the structure glue under current ray machine connection status
Power carries out experiment measurement, and providing data for space flight optical element stress prediction supports.
The method of test solidification internal stress typically manufactures the container of filling structure glue using light-proof materials such as aluminium, iron at present,
Such a structure can not measure the stress value for the structure glue for needing light irradiation that curing reaction could occur, and secondly hold in bearing structure glue
In the design of device, distressed structure and reality when filling mode, structure glue size shape and the solidification internal stress of structure glue shrink
Different in optical element bonding situation, the stress value for measuring to obtain does not have project reference value.
Utility model content
To solve structure glue solidification internal stress value and measurement situation and reality when existing test device can not measure light irradiation
Border project situation is not inconsistent the problem of making measurement result inaccuracy, and the utility model provides a kind of transparent organic glass as solidification
Platform, solidify distressed structure and the engineering structure glue solidification internal stress test device that actually gluing optical element is consistent in platform.
The technical scheme that the utility model solves the above problems is：
A kind of structure glue solidification internal stress test device, including ultraviolet protection incubator 1, it is arranged on ultraviolet protection incubator 1
It is outer strain enlarging instrument 9, data collecting instrument 10 and the uviol lamp 6 being arranged in ultraviolet protection incubator 1, foil gauge 7, transparent
Lucite piece 5, solidification platform 3；Solidify the shape size phase of the shape size and actual adhesive structure glue 4 of the upper surface of platform 3
Together, solidify and be provided with multiple pillars 11 at the upper end-face edge of platform 3；Solidification platform 3 is provided with hole for injecting glue 12；Uviol lamp 6 is arranged on
The upper end of foil gauge 7；Foil gauge 7 is arranged on the upper end of transparent organic glass piece 5, and transparent organic glass piece 5 is by solidifying platform 3
Pillar 11 is arranged on the upper end of solidification platform 3, and structure glue 4 is arranged on transparent organic glass piece 5 and solidifies the gap that platform 3 is formed
It is interior；Foil gauge 7 is connected by data cable 8 with strain enlarging instrument 9, and strain enlarging instrument 9 passes through data cable 8 and data collecting instrument
10 connections.
Further, it is additionally provided with objective table 2 for firm support solidification platform 3, the lower section of solidification platform 3.
Further, to ensure the accuracy of measurement result, hole for injecting glue 12 is arranged on the center of solidification platform 3.
Further, to ensure the accuracy of measurement result, foil gauge 7 is arranged on the centre bit of transparent organic glass piece 5
Put.
Further, to ensure the fastness of bonding, foil gauge 7 is pasted onto transparent organic glass piece 5 with epoxy glue
Center, transparent organic glass piece 5 is pasted onto solidification platform 3 upper end with silicon rubber.
A kind of method of test structure adhesive curing stress, comprises the following steps：
1) solidification platform 3 and foil gauge 7, shape size and the actual adhesive structure glue 4 of solidification platform 3 upper surface are chosen
Shape size is identical；
2) foil gauge 7 is pasted onto on transparent organic glass piece 5；
3) pillar 11 of transparent organic glass piece 5 and solidification platform 3 upper end is bonded；
4) structure glue 4 is injected from the hole for injecting glue 12 of solidification platform 3, full of transparent organic glass piece 5 and the solidification shape of platform 3
Into gap, wipe unnecessary glue off；
5) solidification platform 3 is positioned in ultraviolet protection incubator 1；
6) foil gauge 7 is connected with strain enlarging instrument 9, strain enlarging instrument 9 is connected with data collecting instrument 10；
7) strain enlarging instrument 9 and data collecting instrument 10 are opened, opens uviol lamp 6, the temperature of ultraviolet protection incubator 1 is set
Degree, carry out solidifying strain value measurement；
8) stop data acquisition after strain measurement data are constant, preserved to having surveyed data, you can obtained at different moments
The solidification strain value of structure glue 4；
9) according to the strain of transparent organic glass piece 5 and the modulus of elasticity of lucite, using Hooke's law calculation formula
Amount of force of the structure glue solidification process to transparent organic glass piece 5 is obtained, the active force is the numerical value of solidification internal stress, tool
Body formula is σ=E ε,
Wherein：The stress of σ-test；
The modulus of elasticity 6.9Gpa of E- lucite；
ε-solidification strain value.
Further, the gap that transparent organic glass piece 5 and solidification platform 3 are formed is 0.15-0.2mm.
Further, structure glue 4 is injected with the hole for injecting glue 12 of syringe from solidification platform 3.
The advantages of the utility model is：
1. test device provided by the utility model is simple in construction, method of testing is simple, suitable for different formulations structure glue
The test of solidification internal stress passes through the implementation of nine operating procedures, the measurable size to structure glue solidification internal stress.
2. lucite used in the utility model solidifies platform printing opacity, compatible light consolidated structures adhesive curing stress
Measurement.
3. by the regulation of uviol lamp intensity, the solidification internal stress that can different light intensity be irradiated with lower photo cured structural glue is surveyed
Amount, by the regulation of ultraviolet protection incubator temperature, can be measured, to reality to the solidification internal stress of structure glue under different temperatures
Gluing condition has directive function in engineering.
4. actually gluing model is identical with camera space optical element for the structure of solidification platform, the gum spot thickness and shape of bonding
Shape is identical, and measurement data has engineering adaptability.
Brief description of the drawings
Fig. 1 is the utility model measurement apparatus structural representation；
When Fig. 2 is 20 DEG C, the solidification internal stress experiment curv of structure glue 4；
When Fig. 3 is 40 DEG C, the solidification internal stress experiment curv of structure glue 4；
When Fig. 4 is 60 DEG C, the solidification internal stress experiment curv of structure glue 4.
Reference：1- ultraviolet protection incubators, 2- objective tables, 3- solidification platforms, 4- structure glues, 5- transparent organic glass
Piece, 6- uviol lamps, 7- foil gauges, 8- data cables, 9- strain enlarging instruments, 10- data collecting instruments, 11- pillars, 12- hole for injecting glue.
Embodiment
Content of the present utility model is described in further detail below in conjunction with the drawings and specific embodiments：
As shown in figure 1, a kind of structure glue solidification internal stress test device, including ultraviolet protection incubator 1, be arranged on it is ultraviolet anti-
Strain enlarging instrument 9, data collecting instrument 10 and the uviol lamp 6 being arranged in ultraviolet protection incubator 1, strain outside shield incubator 1
Piece 7, transparent organic glass piece 5, solidification platform 3；Solidify and be provided with 4 pillars 11 at the upper end-face edge of platform 3；Solidify platform 3
Provided with hole for injecting glue 12；Uviol lamp 6 is arranged on the upper end of foil gauge 7；Foil gauge 7 is arranged on the upper end of transparent organic glass piece 5, transparent
Lucite piece 5 is arranged on the upper end of solidification platform 3 by solidifying the pillar 11 of platform 3, and structure glue 4 is arranged on transparent organic glass
In the gap that glass piece 5 and solidification platform 3 are formed；Foil gauge 7 is connected by data cable 8 with strain enlarging instrument 9, strains enlarging instrument
9 are connected by data cable 8 with data collecting instrument 10.The lower section of solidification platform 3 is provided with objective table 2.To ensure measurement result
Accuracy, hole for injecting glue 12 be arranged on solidification platform 3 center.Foil gauge 7 is arranged on the center of transparent organic glass piece 5
Position.To ensure the fastness of bonding, foil gauge 7 is pasted onto to the center of transparent organic glass piece 5 with epoxy glue, uses silicon
Transparent organic glass piece 5 is pasted onto solidification platform 3 upper end by rubber.Structure and the camera space optical element for solidifying platform 3 are real
The gluing model in border is similar, and the gum spot thickness of bonding is similar with shape, the shape size of solidification platform 3 upper surface and actual gluing knot
The shape size of structure glue 4 is identical.
The demand quantified for space structure glue stress parameters, the utility model provide a kind of space structure adhesive curing
The method of testing and measurement apparatus of solidification internal stress in journey, the solidification material of platform 3 is transparent organic glass, compatible light consolidated structures
The solidification internal stress measurement of glue 4, by the measurement structure glue 4 of foil gauge 7, caused lucite is deformed to calculate in the curing process
The solidification internal stress of structure glue 4, the selection for low stress space structure glue provide theories integration.
Structure glue 4 is put into made of glass by the utility model method to be solidified in platform 3, and the top of solidification platform 3 is pasted with
Foil gauge 7, by the regulation of the intensity of uviol lamp 6, the solidification inner structure glue 4 of platform 3 solidifies at different temperatures, according to test
The deformation of the lucite arrived to the solidification internal stress of structure glue 4 can measure and record in real time, the operation of the utility model method
Simply, suitable for the test of the solidification internal stress of different formulations structure glue 4.The apparatus and method can be to structure glue under different temperatures 4
Solidification internal stress is measured in real time.In the utility model method of testing, a certain size lucite is chosen, is processed before measuring
Go out with actual optical components it is gluing when gum spot size identical disc, with the method for stickup be made solidification platform 3, in container top
Foil gauge 7 is pasted, solidification platform 3 is placed in ultraviolet protection incubator 1, cure shrinkage can occur for structure glue 4 or expansion becomes
Shape, the real time data of solidification internal stress can be calculated further according to Hooke's law.
Specific measuring process is as follows：
1) solidification platform 3 and foil gauge 7, shape size and the actual adhesive structure glue 4 of solidification platform 3 upper surface are chosen
Shape size is identical；
2) foil gauge 7 is pasted onto to the center of transparent organic glass piece 5 with epoxy glue；
3) transparent organic glass piece 5 is pasted onto on the pillar of the solidification upper end-face edge of platform 3 with silicon rubber；
4) structure glue 4 is injected with syringe from the solidification hole for injecting glue 12 of platform 3, full of transparent organic glass piece 5 and solidification
Gap between platform 3, wipe unnecessary glue off；
5) solidification platform 3 is positioned in ultraviolet protection incubator 1；
6) foil gauge 7 is connected on strain enlarging instrument 9 by data wire, then strain enlarging instrument 9 is connected by data wire
It is connected to data collecting instrument 10；
7) strain enlarging instrument 9 and data collecting instrument 10 are opened, opens uviol lamp 6, the temperature of ultraviolet protection incubator 1 is set
Degree, carry out solidifying strain value measurement；
8) stop data acquisition after strain measurement data are constant, preserved to having surveyed data, you can obtained at different moments
The solidification strain value of structure glue 4；
9) according to the strain of transparent organic glass piece 5 and the modulus of elasticity of lucite, using Hooke's law calculation formula
Amount of force of the solidification process of structure glue 4 to transparent organic glass piece 5 can be obtained, the active force is the number of solidification internal stress
Value, specific formula is σ=E ε,
Wherein：The stress of σ-test；
The modulus of elasticity 6.9Gpa of E- lucite；
ε-solidification strain value.
In above-mentioned measurement process, the solidification process of structure glue 4 can occur swollen due to curing exotherm and cross-linking reaction, structure glue 4
Swollen and contraction distortion, due to the constraint of transparent organic glass piece 5, the deformation of structure glue 4, which can cause, is pasted with the organic of foil gauge 7
Glass deforms upon.Foil gauge 7 records this strain by deformeter and data collecting instrument 10, then according to Hooke's law and should
The solidification internal stress of structure glue 4 at different moments can be obtained by becoming data.
Make solidification platform 3 first before testing, using the characteristic of transparent organic glass piece light-permeable, select lucite
Base material is made, according to actual bonded adhesives shape of spot size, it is determined that the solidification gluing surface of platform 3 is φ 8mm, thickness 0.2mm；According to
Lucite dependent variable caused by the solidification internal stress of structure glue 4 should be greater than 1 × 10-6, the thickness for determining transparent organic glass piece 5 is
0.5mm。
Embodiment 1：
The present embodiment be the Structured cured glue of φ 8mm × 0.2mm at 20 DEG C, the measurement of solidification internal stress.
1) solidification platform 3 and foil gauge 7, shape size and the actual adhesive structure glue 4 of solidification platform 3 upper surface are chosen
Shape size is identical；
2) it will first solidify platform 3 and transparent organic glass piece 5 be placed in the ultrasonic washing instrument for containing absolute ethyl alcohol and cleaned, use
Distilled water is secondary to rinse drying.The bonding position of each part is got into 45 ° of crossbandings with 220 mesh sand paper, wiped with acetone
Only, remain standby；
3) foil gauge 7 is pasted onto to the center of transparent organic glass piece 5, pasted viscous using hand extrusion during foil gauge 7
The bubble in layer is connect, foil gauge 7 uses 120 Ω -350 Ω uniaxial strain gages, lattice dimensions 1.0mm × 1.5mm, and glass wool cloth increases
Strong polyimide substrate, heat-resisting 250 DEG C, the bonding agent of foil gauge 7 is epoxy-phenolic adhesive, -370 DEG C of operating temperature -70 DEG C；
4) transparent organic glass piece 5 is attached to Wear Characteristics of Epoxy Adhesive on the pillar 11 of solidification platform 3, and adhesion width is less than 1mm；
5)：By in the inhalation syringe of structure glue 4, it is flat that the hole for injecting glue 12 of the glue of structure glue 4 from solidification platform 3 is injected into solidification
In the gap for the 0.2mm that platform 3 is formed with transparent organic glass piece 5, try not to bring bubble into, wipe unnecessary glue off, it is to be implanted
Glue spilling bonding plane when, stop injecting glue, wipe the glue of extrusion off with blade, solidification platform 3 is positioned over ultraviolet protection insulation
In case 1；
6) foil gauge 7 is connected on strain enlarging instrument 9 by data wire, then strain enlarging instrument 9 is passed through into data cable
It is connected to data collecting instrument 10；
7) strain enlarging instrument 9 and data collecting instrument 10 are opened, uviol lamp 6 is opened, by the temperature adjustment of ultraviolet protection incubator 1
To 25 DEG C, solidification strain measurement is proceeded by, wherein strain enlarging instrument 9 is dynamic strain indicator, direct current supply 2V-8V, direct current are put
It is big 100-1000 times, sample frequency 100/s；
Etc. 8) after strain measurement data are constant, stop data acquisition, preserved to having surveyed data, close ultraviolet protection and protect
Incubator 1；
9) according to the strain of transparent organic glass piece 5 and the modulus of elasticity of lucite, using Hooke's law calculation formula
Amount of force of the solidification process of structure glue 4 to transparent organic glass piece 5 can be obtained, the power is the numerical value of solidification internal stress,
Specific formula is σ=E ε,
The stress of σ-test；
The modulus of elasticity 6.9Gpa of E- lucite；
ε-solidification strain value.
It is as shown in Figure 2 to the stress after each moment strain calculation and the relation curve of practice.
Embodiment 2：
Experiment process is carried out by embodiment 1, and in the present embodiment, the temperature of ultraviolet protection incubator 1 is 40 DEG C, to each moment
The relation curve of stress and time after strain calculation is as shown in Figure 3.
Embodiment 3：
Experiment process is carried out by embodiment 1, and in the present embodiment, the temperature of ultraviolet protection incubator 1 is 60 DEG C, to each moment
The relation curve of stress and time after strain calculation is as shown in Figure 4.
Claims (5)
- A kind of 1. structure glue solidification internal stress test device, it is characterised in that：Including ultraviolet protection incubator (1), be arranged on it is ultraviolet Protect strain enlarging instrument (9), data collecting instrument (10) and the purple being arranged in ultraviolet protection incubator (1) of incubator (1) outside Outer lamp (6), foil gauge (7), transparent organic glass piece (5), solidification platform (3)；It is identical with the shape size of actual adhesive structure glue (4) to solidify the shape size of platform (3) upper surface, solidification platform (3) Upper end-face edge at be provided with multiple pillars (11)；Solidification platform (3) is provided with hole for injecting glue (12)；Uviol lamp (6) is arranged on the upper end of foil gauge (7)；Foil gauge (7) is arranged on transparent organic glass piece (5) upper end, and transparent organic glass piece (5) is by solidifying the branch of platform (3) Post (11) is arranged on the upper end of solidification platform (3), and structure glue (4) is arranged on transparent organic glass piece (5) and solidification platform (3) shape Into gap in；Foil gauge (7) is connected by data cable (8) with strain enlarging instrument (9), and strain enlarging instrument (9) passes through data cable (8) It is connected with data collecting instrument (10).
- 2. structure glue solidification internal stress test device according to claim 1, it is characterised in that：Solidify the lower section of platform (3) It is additionally provided with objective table (2).
- 3. structure glue solidification internal stress test device according to claim 1 or 2, it is characterised in that：Hole for injecting glue (12) is set In the center of solidification platform (3).
- 4. structure glue solidification internal stress test device according to claim 3, it is characterised in that：Foil gauge (7) is arranged on The center of bright lucite piece (5).
- 5. structure glue solidification internal stress test device according to claim 4, it is characterised in that：With epoxy glue by foil gauge (7) center of transparent organic glass piece (5) is pasted onto, transparent organic glass piece (5) is pasted onto into solidification with silicon rubber puts down Platform (3) upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720520741.1U CN206756090U (en) | 2017-05-11 | 2017-05-11 | Structural adhesive curing stress testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720520741.1U CN206756090U (en) | 2017-05-11 | 2017-05-11 | Structural adhesive curing stress testing device |
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| Publication Number | Publication Date |
|---|---|
| CN206756090U true CN206756090U (en) | 2017-12-15 |
Family
ID=60617779
Family Applications (1)
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|---|---|---|---|
| CN201720520741.1U Active CN206756090U (en) | 2017-05-11 | 2017-05-11 | Structural adhesive curing stress testing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084661A (en) * | 2017-05-11 | 2017-08-22 | 中国科学院西安光学精密机械研究所 | Structural adhesive curing stress testing device and testing method |
-
2017
- 2017-05-11 CN CN201720520741.1U patent/CN206756090U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084661A (en) * | 2017-05-11 | 2017-08-22 | 中国科学院西安光学精密机械研究所 | Structural adhesive curing stress testing device and testing method |
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