CN107685497A - Smart laminated plate and preparation method with damage real-time perception and warning function - Google Patents
Smart laminated plate and preparation method with damage real-time perception and warning function Download PDFInfo
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- CN107685497A CN107685497A CN201710624211.6A CN201710624211A CN107685497A CN 107685497 A CN107685497 A CN 107685497A CN 201710624211 A CN201710624211 A CN 201710624211A CN 107685497 A CN107685497 A CN 107685497A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
- B29C70/443—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding and impregnating by vacuum or injection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/70—Completely encapsulating inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/88—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B9/047—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material made of fibres or filaments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/021—Fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/04—Impregnation, embedding, or binder material
- B32B2260/046—Synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0261—Polyamide fibres
- B32B2262/0269—Aromatic polyamide fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/101—Glass fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/106—Carbon fibres, e.g. graphite fibres
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention relates to a kind of smart laminated plate and preparation method with damage real-time perception and warning function, the smart laminated plate includes scrim cloth, piezoelectric ceramics unit and sealing layer of resin, the piezoelectric ceramics unit is embedded in the scrim cloth, the sealing layer of resin surrounds the scrim cloth, outside conductor extension to the sealing layer of resin of the piezoelectric ceramics unit, the piezoelectric ceramics unit is embedded to 1/2 thickness position of the scrim cloth.Compared with prior art; the present invention can either protect piezoelectric patches not to be damaged; and can excites high s/n ratio signal, solve it is actual to composite structure on-line monitoring operating mode under, adhesive type piezoelectric patches easily with structure unsticking, it is broken, excitation signal signal to noise ratio is low the problem of.
Description
Technical field
The present invention relates to a kind of composite laminated plate, has damage real-time perception and warning function more particularly, to one kind
Smart laminated plate and preparation method.
Background technology
The fiber-reinforced resin matrix compound material laminate various features such as have high specific strength, specific modulus, designability strong
And favored by different engineering fields.However, actual use composite laminated plate easily by exterior power with it is quiet
Mechanical function and form naked eyes invisible injury.Guided wave has the series of advantages such as long transmission distance, sensitivity height.Based on guided wave
Damage real-time perception and early warning technology can find damage in laminated plate structure in time, so as to effectively avoid structure that calamity occurs
Difficulty is destroyed.In the damage perception and early warning technical system using guided wave technology, based on a kind of transducer of piezoelectric ceramic piece
It is widely used in launching or receiving guided wave signals.In conventional method, piezoelectric ceramic piece often pastes body structure surface by adhesive.
However, effect loaded, piezoelectric ceramic piece is easy to that unsticking occurs and does not collect signal with structure, and then influences to perceive and pre-
Alert function.Meanwhile the piezoelectric patches of adhesive type can not generate the guided wave signals of high s/n ratio in composite structure, influence signal
Processing procedure, the real-time accurate perception and early warning of damage can not be realized.
The content of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide one kind has damage real-time
The smart laminated plate and preparation method with warning function are perceived, piezoelectric patches can either be protected not to be damaged, and can excites high noise
Compare signal.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of smart laminated plate with damage real-time perception and warning function, including scrim cloth, piezoelectric ceramics unit
And sealing layer of resin, the piezoelectric ceramics unit are embedded in the scrim cloth, the sealing layer of resin surrounds the fiber cloth
Layer, outside conductor extension to the sealing layer of resin of the piezoelectric ceramics unit.
The piezoelectric ceramics unit is embedded to 1/2 thickness position of the scrim cloth.
When the scrim cloth is even number Rotating fields, the piezoelectric ceramics unit is embedded in middle between two layers；
When the scrim cloth is odd number Rotating fields, the piezoelectric ceramics unit is embedded in intermediate layer.
The piezoelectric ceramics unit is single piezoelectric patches or piezoelectricity chip arrays.
The piezoelectric patches is circular piezoelectric ceramic wafers.
The material feedstock of the sealing layer of resin includes epoxy resin, curing agent and accelerator, the epoxy resin, solidification
The mass ratio of agent and accelerator is：100：(0.1~1)：(0.01~0.2).
A kind of preparation method with the smart laminated plate for damaging real-time perception and warning function, comprises the following steps：
Step 1, fiber cloth is laid on mould by the laying form being pre-designed, forms scrim cloth, while by band
The piezoelectric ceramics unit for having positive and negative polarity wire is positioned in scrim cloth, forms a system；
Step 2, after release cloth, flow-guiding screen and mozzle are laid on into fiber cloth surface, utilize vacuum bag combination fluid sealant
By the system sealing；
Step 3, sealing fluid will be formed after epoxy resin, curing agent and accelerator uniform stirring, utilize the pressure of internal system
The sealing fluid is pumped into internal system by power difference, and is formed by curing sealing layer of resin；
Step 4, the demoulding, obtain the smart laminated plate with damage real-time perception and warning function.
In the step 1, the piezoelectric ceramics unit is embedded to 1/2 thickness position of the scrim cloth.
The step 3, the epoxy resin, curing agent and the mass ratio of accelerator are：100：(0.1~1)：(0.01~
0.2)。
The step 3, hardening time is between 24h~48h.
Compared with prior art, the present invention has advantages below：
(1) piezoelectric ceramics is embedded in scrim cloth by the present invention, before laminated composite plate structures intensity is not destroyed
Put so that piezoelectric ceramics is not easy to be influenceed by external load and unsticking, fragmentation occurs, and improves the security reliability of laminate.
(2) piezoelectric patches (group) is integrated into composite laminated plate by the present invention using the excellent processing technology of composite
In, the laminated plate structure of guided wave excitation-reception signal of formation flush type-flush type, with existing adhesive type-adhesive type phase
Than there is higher signal to noise ratio, its S0 amplitude is 2 times of the latter.
(3) Surface SP Tomography principle is utilized, the present invention utilizes the damage of guided wave excitation-reception signal of flush type-flush type
Perceived accuracy is better than adhesive type-adhesive type piezoelectric patches group.
Brief description of the drawings
Fig. 1 is the preparation method flow of the smart laminated plate with damage real-time perception and warning function of the present invention
Block diagram；
Fig. 2 is a kind of piezoelectricity chip arrays schematic diagram that the present invention uses；
Fig. 3 is that guided wave signals excite and excite-receive piezoelectricity sheet form with reception system and use four kinds；
Fig. 4 is that the guided wave signals for exciting-receiving piezoelectricity sheet form to obtain using difference contrast；
Fig. 5 excites-positioning precision comparison diagram of the reception signal in Surface SP Tomography algorithm for difference, wherein, (5a) is to bury
Enter formula-flush type, (5b) is flush type-adhesive type, and (5c) is adhesive type-flush type, and (5d) is adhesive type-adhesive type.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to
Following embodiments.
A kind of smart laminated plate with damage real-time perception and warning function of the present embodiment offer, including scrim cloth,
Piezoelectric ceramics unit and sealing layer of resin, piezoelectric ceramics unit are embedded in scrim cloth, and sealing layer of resin surrounds scrim cloth, pressure
Outside the conductor extension of electroceramics unit to sealing layer of resin.The damage that the smart laminated plate is solved to composite laminated plate is real
When perceive and early warning technology in, being pasted on the piezoelectric ceramic piece of laminated plate surface is easily influenceed by external load and unsticking, broken occurs
Split, while the problem of excitation signal signal to noise ratio is relatively low.
Piezoelectric ceramics unit is embedded to 1/2 thickness position of scrim cloth, increases symmetrical wave amplitude, reduces antisymmetry wave amplitude
Value.The number of plies and thickness of scrim cloth are unlimited, and when scrim cloth is even number Rotating fields, piezoelectric ceramics unit is embedded in centre two
Between layer；When scrim cloth is odd number Rotating fields, piezoelectric ceramics unit is embedded in intermediate layer.
Piezoelectric ceramics unit is single piezoelectric patches or piezoelectricity chip arrays.Piezoelectric patches is circular piezoelectric ceramic wafers.This implementation
In example, limiting thickness is not 1mm, a diameter of 10mm, centre frequency 210KHz for the number of plies, thickness.
The raw material of sealing layer of resin includes epoxy resin, curing agent and accelerator, epoxy resin, curing agent and promotion
The mass ratio of agent is：100：(0.1~1)：(0.01~0.2), curing agent and accelerator are common commercially available material.The present embodiment
In, epoxy resin, curing agent and the mass ratio of accelerator are：100：0.5：0.1.The material power for solidifying out using this proportioning
Performance is good, and hardening time is moderate.
The positive and negative level diameter wire of piezoelectric ceramics unit is 0.5mm, and piezoelectric patches and the solder joint of lead junction are as small as possible,
It need to extend at the 0.5m of laminate border, for connecting guided wave monitoring device.
As described in Figure 1, the above-mentioned preparation method with the smart laminated plate for damaging real-time perception and warning function, including with
Lower step：
Step 1, fiber cloth is laid on mould by the laying form being pre-designed, forms scrim cloth, while by band
There is 1/2 thickness position of the piezoelectric ceramics unit embedment scrim cloth of positive and negative polarity wire, form a system.
In the present embodiment, scrim cloth is provided with 4 layers of glass fabric altogether.First layer glass fiber cloth 2 will be laid first
Onto the glass board mould 1 as workbench, piezoelectric ceramic piece 3 is then pasted onto glass fabric surface using all-purpose adhesive,
Re-lay other 2 layers of glass fabric.
Step 2, piezoelectric ceramic piece and glass fabric are sealed in glass plate using flow-guiding screen, release cloth and vacuum bag 4
On mould 1.
Step 3, whole system is connected using resin container 5, plastic catheter 6, resin trap tank 7 and vavuum pump 8 is deposited
It is good；The resin configured is added to and deposited in resin container 5, opening vavuum pump 8 slowly in resin suction system and will seal pressurize,
Solidification, form sealing layer of resin.According to temperature conditions, hardening time is between 24h~48h.
Step 4, after resin is fully cured, the demoulding, obtain that there is damage real-time perception and warning function, in-situ monitoring
The smart laminated plate of function
As shown in Fig. 2 in the present embodiment, piezoelectric ceramics unit uses piezoelectricity chip arrays, and embedment piezoelectric patches is encoded,
Numbering is PZT-0 to PZT-8, and the piezoelectric patches being embedded to forms circular array, and the distance of distance center piezoelectric patches is 200mm.
With reference to Fig. 3 ,-reception system is excited using guided wave, the present invention compared for 4 kinds of different signal excitations-reception piezoelectricity
The signal that piece group obtains；4 kinds of different piezoelectric patches groups that excite-receive are respectively：(1) flush type-flush type；(2) flush type-viscous
It is mounted；(3) adhesive type-flush type；(4) adhesive type-adhesive type.Various forms of excite-receive piezoelectric patches group to obtain using 4 kinds
Guided wave signals it is as shown in Figure 4.Using 4 kinds it is different excite-receive piezoelectric patches group, using the piezoelectricity chip arrays in Fig. 2, with reference to
Laminate damage reason location result such as Fig. 5 that Surface SP Tomography algorithm obtains.It can be seen that obtained using flush type-flush type piezoelectricity chip arrays
The signal arrived has compared with high s/n ratio, and S0 amplitudes are high, and positioning precision is good, it was confirmed that effectiveness of the invention.
Present embodiment can also include：
1st, it can be glass fibre, carbon to have the kinds of fibers in the smart laminated plate of damage real-time perception and warning function
The continuous fibers such as fiber, aramid fiber, diameter should be less than piezoelectric patches diameter between fiber yarn；
2nd, it can be unidirectional fibre to have the kinds of fibers in the smart laminated plate of damage real-time perception and warning function, also
But fiber is worked out, only need to ensure that integrated piezoelectric patches is located at 1/2 thickness of laminate；
3rd, it can be epoxy resin, vinyl to have the resin in the smart laminated plate of damage real-time perception and warning function
A kind of normal temperature solidified resin such as resin；
4th, composite material preparation process can be VARI technique, also but resin conversion molds (RTM)
The laminate preparation technology being pre-separated Deng a resinoid, fiber.
Preferred embodiment of the invention described in detail above.It should be appreciated that one of ordinary skill in the art without
Creative work can is needed to make many modifications and variations according to the design of the present invention.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical scheme, all should be in the protection domain being defined in the patent claims.
Claims (10)
1. a kind of smart laminated plate with damage real-time perception and warning function, it is characterised in that including scrim cloth, piezoelectricity
Ceramic unit and sealing layer of resin, the piezoelectric ceramics unit are embedded in the scrim cloth, and the sealing layer of resin surrounds institute
Scrim cloth is stated, outside conductor extension to the sealing layer of resin of the piezoelectric ceramics unit.
2. the smart laminated plate with damage real-time perception and warning function according to claim 1, it is characterised in that institute
State 1/2 thickness position that piezoelectric ceramics unit is embedded to the scrim cloth.
3. the smart laminated plate with damage real-time perception and warning function according to claim 2, it is characterised in that institute
When to state scrim cloth be even number Rotating fields, the piezoelectric ceramics unit be embedded in it is middle two layers between；
When the scrim cloth is odd number Rotating fields, the piezoelectric ceramics unit is embedded in intermediate layer.
4. the smart laminated plate with damage real-time perception and warning function according to claim 1, it is characterised in that institute
It is single piezoelectric patches or piezoelectricity chip arrays to state piezoelectric ceramics unit.
5. the smart laminated plate with damage real-time perception and warning function according to claim 4, it is characterised in that institute
It is circular piezoelectric ceramic wafers to state piezoelectric patches.
6. the smart laminated plate with damage real-time perception and warning function according to claim 1, it is characterised in that institute
Stating the material feedstock of sealing layer of resin includes epoxy resin, curing agent and accelerator, the epoxy resin, curing agent and accelerator
Mass ratio be：100：(0.1~1)：(0.01~0.2).
7. a kind of preparation method with the smart laminated plate for damaging real-time perception and warning function as claimed in claim 1,
It is characterised in that it includes following steps：
Step 1, fiber cloth is laid on mould by the laying form being pre-designed, forms scrim cloth, while will carry just
The piezoelectric ceramics unit of cathode conductor is positioned in scrim cloth, forms a system；
Step 2, after release cloth, flow-guiding screen and mozzle are laid on into fiber cloth surface, using vacuum bag combination fluid sealant by institute
State system sealing；
Step 3, sealing fluid will be formed after epoxy resin, curing agent and accelerator uniform stirring, utilize the pressure differential of internal system
The sealing fluid is pumped into internal system, and is formed by curing sealing layer of resin；
Step 4, the demoulding, obtain the smart laminated plate with damage real-time perception and warning function.
8. preparation method according to claim 7, it is characterised in that in the step 1, the piezoelectric ceramics unit buries
Enter 1/2 thickness position of the scrim cloth.
9. preparation method according to claim 7, it is characterised in that the step 3, the epoxy resin, curing agent and
The mass ratio of accelerator is：100：(0.1~1)：(0.01~0.2).
10. preparation method according to claim 7, it is characterised in that the step 3, hardening time 24h~48h it
Between.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710624211.6A CN107685497A (en) | 2017-07-27 | 2017-07-27 | Smart laminated plate and preparation method with damage real-time perception and warning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710624211.6A CN107685497A (en) | 2017-07-27 | 2017-07-27 | Smart laminated plate and preparation method with damage real-time perception and warning function |
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| CN107685497A true CN107685497A (en) | 2018-02-13 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101551350A (en) * | 2009-05-18 | 2009-10-07 | 南昌航空大学 | Method of establishing damnification self-diagnosis system for carbon fiber enhancement resin base composite material |
| CN102478533A (en) * | 2010-11-22 | 2012-05-30 | 大连创达技术交易市场有限公司 | Self-diagnosing system for damage of composite material |
| WO2014060949A2 (en) * | 2012-10-16 | 2014-04-24 | Schlumberger Technology B.V. | Electrochemical hydrogen sensor |
| CN206154744U (en) * | 2016-09-30 | 2017-05-10 | 咸宁海威复合材料制品有限公司 | Supplementary two membrane forming device in vacuum |
| CN106903905A (en) * | 2017-03-08 | 2017-06-30 | 西北工业大学 | A kind of mould of c-type suitable for VARI with muscle wallboard composite and method |
-
2017
- 2017-07-27 CN CN201710624211.6A patent/CN107685497A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101551350A (en) * | 2009-05-18 | 2009-10-07 | 南昌航空大学 | Method of establishing damnification self-diagnosis system for carbon fiber enhancement resin base composite material |
| CN102478533A (en) * | 2010-11-22 | 2012-05-30 | 大连创达技术交易市场有限公司 | Self-diagnosing system for damage of composite material |
| WO2014060949A2 (en) * | 2012-10-16 | 2014-04-24 | Schlumberger Technology B.V. | Electrochemical hydrogen sensor |
| CN206154744U (en) * | 2016-09-30 | 2017-05-10 | 咸宁海威复合材料制品有限公司 | Supplementary two membrane forming device in vacuum |
| CN106903905A (en) * | 2017-03-08 | 2017-06-30 | 西北工业大学 | A kind of mould of c-type suitable for VARI with muscle wallboard composite and method |
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Application publication date: 20180213 |