CN101551350B - Method of establishing damnification self-diagnosis system for carbon fiber enhancement resin base composite material - Google Patents
Method of establishing damnification self-diagnosis system for carbon fiber enhancement resin base composite material Download PDFInfo
- Publication number
- CN101551350B CN101551350B CN2009101153696A CN200910115369A CN101551350B CN 101551350 B CN101551350 B CN 101551350B CN 2009101153696 A CN2009101153696 A CN 2009101153696A CN 200910115369 A CN200910115369 A CN 200910115369A CN 101551350 B CN101551350 B CN 101551350B
- Authority
- CN
- China
- Prior art keywords
- composite material
- compound substance
- carbon fiber
- damnification
- self
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Reinforced Plastic Materials (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
A method of establishing a damnification self-diagnosis system for carbon fiber enhancement resin base composite material is characterized in that the steps includes: (1) measuring the front and the rear electrical resistances of different type composite materials with epigene actions of stretching, impacting and bending by a electrical resistance measuring instrument, building a stress-electricalresistance database of the composite material, determining the damnification of the composite material by using a ultrasound scanning method, and determining the corresponding relation of damnificati on-electrical resistance variation; (2) analyzing and processing the composite material electrical resistance variation by a computer, diagnosing whether the composite material having damnification ornot real time, and generating automatically a abridged general view of the composite material status. The advantage of the invention is that by means of using the conductivity characteristics of the composite material, the composite material is taken as an inductive element for its mechanics and electrology performance, so as to self-diagnosing the damnification of the composite material. The system has the characteristics of real time monitoring, accurate diagnosis, and the system is visual and intelligible.
Description
Technical field
The present invention relates to a kind of method of setting up damnification self-diagnosis system for carbon fiber enhancement resin base composite material.
Background technology
The research of smart material and structure is originated from the aerospace community of the eighties in 20th century, and the compound substance with self-diagnostic function also is a kind of intellectual material.The intelligent composite system mainly is made up of compound substance, sensing element, message handler.It is to carry that compound substance mainly acts on; The main effect of sensing element is the variation of perception material internal or outside situation, and is converted into corresponding signal; Message handler is the core, and it is handled sensing element output signal, thereby the compound substance situation is judged.
Advantages such as carbon fiber enhancement resin base composite material has specific strength and specific stiffness is high, designability is strong, anti-fatigue performance good, electromagnetic performance is excellent, corrosion resistance and good, easy global formation are widely used in fields such as Aero-Space, communications and transportation, building industry, culture and sports.Because compound substance is to adopt lamination process to process mostly, is a kind of nonuniformity material, the interlaminar shear strength of material is lower, and externally especially percussive action is relatively more responsive in the power effect.Therefore, compound substance produce with use in, receive certain external force and do the time spent, be easy to generate the interior laminate layer damage, and this damage is difficult to detect at material surface, be the hidden danger that composite structure is used safely.
Along with to the compound substance safety in utilization require increasingly high; People hope that compound substance possesses the function that reflects himself situation; And play the effect of safe early warning; Can make the judgement of repairing or changing to material, in some application such as Aero-Space, building industry, this function is particularly important.
In order to make compound substance can detect its internal injury certainly; The at present main method that adopts is to bury resistance wire, optical fiber, piezoelectric etc. underground as sensing element in composite inner, and some parameter such as resistance, intensity variations reflect the variation of compound substance situation under external force through the induction compound substance.This method technology is complicated, and the sensing element that adds is influential to composite materials property.In addition, the someone utilizes the characteristic of electric conduction of carbon fiber, and as the range upon range of compound substance that is added in research self diagnosis on the glass fiber reinforced composite materials of alertness, this method has much room for improvement to the damage of composite materials diagnostic accuracy outside the alert and resourceful layer with the chopped carbon fiber felt.Above-mentioned these methods all are in the material property fundamental research stage, and do not have bonded composite damage check technology to confirm whether there is damage in the compound substance, might not represent to exist in the compound substance damage because the parameter that sensing element is responded to changes.These present research methods are not all set up the damage of composite materials self-diagnosable system, can not reflect material situation intuitively through computer graphical.
Summary of the invention
The object of the present invention is to provide a kind of method of setting up damnification self-diagnosis system for carbon fiber enhancement resin base composite material, damnification self-diagnosis system for carbon fiber enhancement resin base composite material is by being that reinforcing material, fluoropolymer resin are that compound substance, resistance apparatus, computing machine and the software program etc. of matrix material are partly formed with the carbon fibre.
The present invention realizes like this, it is characterized in that method step is:
(1) measures the resistance value of dissimilar compound substances before and after stretching, impact, crooked external force effect through resistance measuring instrument; Set up compound substance stress-resistance data storehouse; Utilize ultrasound scan method to detect damage of composite materials, establish the corresponding relation of damage-resistance variations;
(2) computing machine changes composite material resistance and analyzes, handles, and whether has damage in the real-time diagnosis compound substance, and generates compound substance situation synoptic diagram automatically.
Compound substance of the present invention is to being that reinforcing material, fluoropolymer resin are the compound substance of matrix material with the carbon fibre; Lay a plurality of small copper plate electrode points on the different aspects of compound substance; With a certain electrode points of compound substance lower surface is the fixed electorde point; Measure the resistance value of external force effect front and back between the different electrodes of compound substance upper surface and fixed electorde point respectively, and with the closed region of 4 minimums that electrode points the was surrounded Minimum Area as the damage of composite materials self diagnosis.Do the time spent when compound substance receives external force, from the near more electrode points of outer point of force application, its resistance variations is big more.
Carbon fibre of the present invention is continuous carbon fibre, chopped carbon fiber, carbon fiber felt or carbon cloth.
Fluoropolymer resin of the present invention comprises thermoplastic resin or thermoset resin.
Thermoplastic resin of the present invention is polypropylene, polystyrene or PVC; Thermoset resin is unsaturated polyester resin, epoxy resin or phenolics.
Advantage of the present invention is: the conductive characteristic that utilizes compound substance; With the sensing element of compound substance as itself mechanics, electric property; According to of the variation of the front and back of power effect outside by the closed region composite material resistance of 4 minimums that electrode points surrounded; Through computer software programs this region material situation is made real-time judge, and can generate compound substance situation synoptic diagram automatically, reach damage of composite materials self diagnosis purpose.This system has real-time monitoring, accurate, the simple and clear characteristics of diagnosis.
Description of drawings
Fig. 1 is compound substance self-diagnosable system figure of the present invention.
Computing machine 2, resistance measuring instrument 3, compound substance in the drawings, 1,
Embodiment
As shown in Figure 1, the present invention realizes that like this method step is: it is raw material that (1) compound substance 3 adopts commercialization (G803/5224) carbon cloth/epoxy prepreg; Spread layer (8 layers) according to warp-wise; And lay small copper plate electrode (diameter is 6mm, and thickness is 0.2mm, and half position of electrode is exposed at material surface) by matrix equidistant (spacing is 60mm) at 1,2 interlayers; Put into the hot press curing molding then; The preparation composite board, sheet metal thickness is about 2.0mm, and carbon fiber volume content is about 70%.Remove burr, flash, with sheet material cut growth * wide be the sample of 200mm*150mm, with fine sandpaper with each copper plate electrode surface finish; And use the soldering welding lead; Connect resistance measuring instrument 2 and computing machine 1, measure the resistance value of compound substance before and after stretching, impact, crooked external force effect, set up compound substance stress-resistance data storehouse through resistance measuring instrument 2; Utilize ultrasound scan method to detect damage of composite materials, establish the corresponding relation of damage-resistance variations; (2) 1 pair of composite material resistance variation of computing machine is analyzed, is handled, and whether has damage in the real-time diagnosis compound substance, and generates compound substance situation synoptic diagram automatically.
Claims (3)
1. method of setting up damnification self-diagnosis system for carbon fiber enhancement resin base composite material is characterized in that method step is:
(1) measures the resistance value of dissimilar compound substances before and after stretching, impact, crooked external force effect through resistance measuring instrument; Set up compound substance stress-resistance data storehouse; Utilize ultrasound scan method to detect damage of composite materials, establish the corresponding relation of damage-resistance variations; Described compound substance is to being that reinforcing material, fluoropolymer resin are the compound substance of matrix material with the carbon fibre; Its measuring method is on the different aspects of compound substance, to lay a plurality of small copper plate electrode points; With a certain electrode points of compound substance lower surface is the fixed electorde point; Measure the resistance value of external force effect front and back between the different electrodes of compound substance upper surface and fixed electorde point respectively, and with the closed region of 4 minimums that electrode points the was surrounded Minimum Area as the damage of composite materials self diagnosis;
(2) computing machine changes composite material resistance and analyzes, handles, and whether has damage in the real-time diagnosis compound substance, and generates compound substance situation synoptic diagram automatically.
2. a kind of method of setting up damnification self-diagnosis system for carbon fiber enhancement resin base composite material according to claim 1 is characterized in that described carbon fibre is continuous carbon fibre, chopped carbon fiber, carbon fiber felt or carbon cloth.
3. a kind of method of setting up damnification self-diagnosis system for carbon fiber enhancement resin base composite material according to claim 1; It is characterized in that described fluoropolymer resin comprises thermoplastic resin or thermoset resin, thermoplastic resin is polypropylene, polystyrene or PVC; Thermoset resin is unsaturated polyester resin, epoxy resin or phenolics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101153696A CN101551350B (en) | 2009-05-18 | 2009-05-18 | Method of establishing damnification self-diagnosis system for carbon fiber enhancement resin base composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101153696A CN101551350B (en) | 2009-05-18 | 2009-05-18 | Method of establishing damnification self-diagnosis system for carbon fiber enhancement resin base composite material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101551350A CN101551350A (en) | 2009-10-07 |
| CN101551350B true CN101551350B (en) | 2012-07-11 |
Family
ID=41155709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101153696A Expired - Fee Related CN101551350B (en) | 2009-05-18 | 2009-05-18 | Method of establishing damnification self-diagnosis system for carbon fiber enhancement resin base composite material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101551350B (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2948770B1 (en) * | 2009-07-31 | 2011-10-07 | Airbus Operations Sas | METHOD FOR ELECTRICALLY CHARACTERIZING COMPOSITE MATERIAL FOR MANUFACTURING AN AIRCRAFT |
| EP2381233B1 (en) * | 2009-11-24 | 2016-11-16 | Sumitomo Riko Company Limited | Bend sensor and method of measuring deformed shape |
| CN102590260B (en) * | 2012-02-27 | 2013-11-27 | 中国民航大学 | Heat-electric injury testing system of carbon fiber reinforced resin matrix composite material |
| CN103149086B (en) * | 2013-01-15 | 2015-03-11 | 华南理工大学 | Device and method for measuring toughness damage evolution in process of metal uniaxial tension |
| CN103114515B (en) * | 2013-01-31 | 2016-01-06 | 武汉理工大学 | Piezoelectricity flush type damnification self-diagnosis asphalt concrete pavement structure |
| CN103696361B (en) * | 2014-01-13 | 2016-03-30 | 谢小林 | One is damage detection method for bridge pier anti-collision composite material interlayer structure easily |
| CN104181205B (en) * | 2014-01-15 | 2017-02-01 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | Composite material damage identification method and system thereof |
| CN107685497A (en) * | 2017-07-27 | 2018-02-13 | 华东理工大学 | Smart laminated plate and preparation method with damage real-time perception and warning function |
| CN107521136B (en) * | 2017-08-08 | 2019-08-23 | 华东理工大学 | Filament-Winding Vessel and its manufacturing process with on-line monitoring function |
| CN109100395B (en) * | 2017-11-30 | 2020-05-12 | 浙江大学 | Self-monitoring and self-repairing carbon fiber reinforced composite material intelligent structure |
| CN109849325B (en) * | 2017-11-30 | 2020-05-12 | 浙江大学 | Intelligent structure of carbon fiber thermoplastic composite material and manufacturing method thereof |
| CN108426919A (en) * | 2018-02-13 | 2018-08-21 | 浩发环保科技（深圳）有限公司 | Detect the method and device of carbon fiber enhancement resin base composite material damage |
| CN109799265B (en) * | 2019-02-27 | 2020-09-22 | 武汉大学 | Method for measuring damaged part and degree of concrete by using carbon fiber cloth |
| CN109799266A (en) * | 2019-02-28 | 2019-05-24 | 武汉大学 | A method of damages of concrete structures is measured using carbon cloth |
| CN110181812A (en) * | 2019-06-28 | 2019-08-30 | 西北工业大学 | The 3D printing method of continuous carbon fibre honeycomb and its certainly perception and restoration methods |
| CN110501386B (en) * | 2019-07-17 | 2020-08-25 | 武汉大学 | Rock burst early warning method based on carbon fiber concrete |
| CN110779960B (en) * | 2019-11-13 | 2021-07-30 | 上海交通大学 | CFRP damage detection method based on resistance change |
| CN112700908B (en) * | 2020-12-16 | 2023-01-31 | 中国科学院苏州纳米技术与纳米仿生研究所 | Intelligent composite material and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1173740A2 (en) * | 1999-03-29 | 2002-01-23 | Otis Elevator Company | Method and apparatus for detecting elevator rope degradation using electrical or magnetic energy |
| CN1363832A (en) * | 2002-02-26 | 2002-08-14 | 中国科学院化学研究所 | Method for measuring stressed deformation of cement-base composite material |
| DE10234172A1 (en) * | 2002-07-26 | 2003-07-31 | Daimler Chrysler Ag | Testing of planar test-pieces to determine mechanical, thermal and electrical properties, whereby a single test apparatus can be used for determination of all said properties, resulting in significant time savings |
| CN1492221A (en) * | 2003-08-22 | 2004-04-28 | 武汉理工大学 | Self diagnostic intellgient structure of fiber reinforced resin base composite material and method for self diagnosis |
-
2009
- 2009-05-18 CN CN2009101153696A patent/CN101551350B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1173740A2 (en) * | 1999-03-29 | 2002-01-23 | Otis Elevator Company | Method and apparatus for detecting elevator rope degradation using electrical or magnetic energy |
| CN1363832A (en) * | 2002-02-26 | 2002-08-14 | 中国科学院化学研究所 | Method for measuring stressed deformation of cement-base composite material |
| DE10234172A1 (en) * | 2002-07-26 | 2003-07-31 | Daimler Chrysler Ag | Testing of planar test-pieces to determine mechanical, thermal and electrical properties, whereby a single test apparatus can be used for determination of all said properties, resulting in significant time savings |
| CN1492221A (en) * | 2003-08-22 | 2004-04-28 | 武汉理工大学 | Self diagnostic intellgient structure of fiber reinforced resin base composite material and method for self diagnosis |
Non-Patent Citations (1)
| Title |
|---|
| 袁慎芳,陶宝祺,熊克,梁大开.强度型损伤自诊断智能结构中四点法布置的研究.《航空学报》.1996,第17卷(第4期),473-476. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101551350A (en) | 2009-10-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101551350B (en) | Method of establishing damnification self-diagnosis system for carbon fiber enhancement resin base composite material | |
| CN102478533A (en) | Self-diagnosing system for damage of composite material | |
| Masmoudi et al. | Mechanical behaviour and health monitoring by acoustic emission of sandwich composite integrated by piezoelectric implant | |
| CN102809611A (en) | System and method for detecting damage of metal component nondestructively | |
| JP7358648B2 (en) | Molded body area inspection program, molded body area inspection method, molded body area inspection device | |
| Gungor et al. | Indentation damage detection in glass/epoxy composite laminates with electrically tailored conductive nanofiller | |
| Iizuka et al. | Reverse piezo-resistivity of 3D printed continuous carbon fiber/PA6 composites in a low stress range | |
| CN103926313A (en) | Composite material porosity value evaluation method based on ultrasonic detection | |
| Guo et al. | Identification of fatigue damage modes for carbon fiber/epoxy composites using acoustic emission monitoring under fully reversed loading | |
| Bakis et al. | Assessment of anisotropic mechanical properties of a 3D printed carbon whisker reinforced composite | |
| Okolie et al. | Advances in structural analysis and process monitoring of thermoplastic composite pipes | |
| CN108181029A (en) | The method of the multi-direction monitoring fibre reinforced composites strain of carbon nanometer paper sensor | |
| Augustin et al. | Online monitoring of surface cracks and delaminations in carbon fiber/epoxy composites using silver nanoparticle based ink | |
| CN109916741B (en) | Composite material impact crack detection method based on fiber grating sensing | |
| Todoroki et al. | Mechanism of electrical resistance change of a thin CFRP beam after delamination cracking | |
| Hart | Electrical resistance based damage modeling of multifunctional carbon fiber reinforced polymer matrix composites | |
| Demo et al. | Multifunctional fiber-reinforced polymer composites for damage detection and memory | |
| US20180045688A1 (en) | Wireless Damage Assessment During Manufacturing | |
| Smith et al. | Structural health monitoring of 3D printed structures | |
| Kovalovs et al. | Delamination detection in carbon fibre reinforced composites using electrical resistance measurement | |
| CN106862096A (en) | A kind of Battery Zinc bucket carbon dust height detecting device and detection method | |
| Cui et al. | Full-field monitoring of the resin flow front and dry spot with noninvasive and embedded piezoelectric sensor networks | |
| Kim et al. | Measurement and prediction of embedded copper foil fatigue crack growth in multifunctional composite structure | |
| JP4163543B2 (en) | Lifelong monitoring method for composite materials | |
| Ogawa et al. | Damage detection of CFRP laminates via self-sensing fibres and thermal-sprayed electrodes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20130518 |