CN108225951A - A kind of non-damaging test method of the durability of fibre reinforced composites - Google Patents
A kind of non-damaging test method of the durability of fibre reinforced composites Download PDFInfo
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- CN108225951A CN108225951A CN201711420411.6A CN201711420411A CN108225951A CN 108225951 A CN108225951 A CN 108225951A CN 201711420411 A CN201711420411 A CN 201711420411A CN 108225951 A CN108225951 A CN 108225951A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0075—Strain-stress relations or elastic constants
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
Abstract
The present invention provides a kind of non-damaging test method of the durability of fibre reinforced composites, including：Multiple fibre reinforced composites test specimens of same batch are assigned in a reserved test specimen group and N number of standard specimen group；Destructive strength pull test is carried out to each reserved test specimen, determines the size of the drawing force to the non-damaging extension test of standard specimen；M non-damaging extension test experiment is carried out to each standard specimen, obtains the average elastic modulus carved at the beginning of standard specimen；Standard specimen is placed into aging in test environment；In each ageing time point, each standard specimen is taken out, M non-damaging extension test experiment is carried out, obtains the average elastic modulus in current ageing time point of each standard specimen.It can be influenced caused by composite material durability test result to avoid because of the initial mechanical performance difference of test sample using the present invention, reduce the discreteness of result of the test, improve the stability and reliability of measuring accuracy and test result.
Description
Technical field
This application involves the durable of composite material extension test technical field more particularly to a kind of fibre reinforced composites
The non-damaging test method of property.
Background technology
Since nearly half a century, reinforced concrete structure since many reasons are repaired and are reinforced, lose by such as design
Accidentally, quality of materials is not up to standard, changed using function, is influenced by the adverse circumstances such as corroding.Therefore, civil engineering field one
Directly it is being dedicated to researching and developing reinforcement and repair material and technology.Due to fiber-reinforced composite (Fiber Reinforced
Plastic, FRP) material high-strength light, good corrosion resistance many advantages, such as so that FRP material is widely used in concrete
In the reparation of structure, reinforcing and composite structure.
With popularizing for this technology of FRP reinforcement and repair structures, the engineer application amount sharp increase of civil structure is reinforced, it is right
The demand of FRP material is huge.The increase of demand have stimulated the research and development and production of FRP material, and the type of FRP material is also increasingly
More, the performance difference of various products is also larger.
Ensure safety and the durability of reinforced structure, first have to ensure the quality of the FRP material of reinforcement and repair.
Structure after FRP reinforcement and repairs in use, other than the effect for bearing external load, also suffers various use environments
Test, such as temperature and humidity variation, ultraviolet light irradiation and chemical mediator corrosion destructive factor influence.These environment because
It is plain on the one hand to influence the physical and mechanical property of material in itself, it on the other hand may influence the boundary of FRP material and structure
The adhesive property in face.Therefore, for structure (such as port engineering, bridge structure for being exposed to adverse circumstances with FRP reinforcement and repairs
With chemical building etc.), it should more pay close attention to its endurance issues.
Research starting of the foreign countries in terms of FRP durabilities is more early, and investigative technique is advanced, and corrosion mechanism research some has reached
Molecular level is arrived.The country has just had begun the research in terms of FRP material is corrosion-resistant from the 1970s, but this
Aspect really starts to attract a large number of researchers still since the nineties, and has reached an achievement in research eruption at the beginning of 21 century
Climax.According at present to multiple material performance deterioration test, the performance change of strenthening member test and its analysis etc. achievement,
For durable Journal of Sex Research still the durability research method and achievement based on existing concrete, reinforcing bar of ruggedized construction, only
Simply add the influence of multiple material.For multiple material structure durability Design substantially or empirical method, it is most of all
The method stated using strength character reduction coefficient.Therefore, under civil engineering environment, especially to the engineering under marine environment
Speech, the durability of multiple material is still a field that research is not deep enough, application level is not high enough.With the fields such as aerospace
Development it is different, for the multiple material structure of civil engineering, since the resin that the multiple material of application uses is lower end, cost
Relatively low, the designability of material and the influence of the diversity of engineering-environment are very big again accordingly, and performance variation law is determined with corresponding
Design method is measured also in blank, in general, the research of degradation mechanism is less, concept and theoretical shortage systematicness, design
Experience is substantially based on, without rational durability quantifying design method.Due to the environment residing for engineering be it is complicated and diversified,
The demand of structure durability is also that variation is various, and therefore, there is an urgent need to the durable of the multiple material of complex environment lower structure engineering
Property carry out deep mechanism study, the durability Design for material structure multiple under complex environment provides underlying parameter and design theory base
Plinth, to meet growing engineering design and renovation technique demand.
In the prior art, for the test method of FRP material (may be simply referred to as composite material), generally using intensity
Performance reduction coefficient method.This method is the test result after the different degradation periods based on test specimen, according to certain
What rule determined, there is certain centralized guidance to be worth.But this method needs to carry out destructive testing to every group of test specimen,
I.e. in the different tests period using different test samples, this requires the initial mechanical performances of the test specimen of each test period batch
Discreteness is small.Therefore, strength character reduction coefficient method is only applicable to test the essentially identical material (example of initial mechanical performance
Such as, the materials such as steel).
Composite material by factors such as composition material type, proportionings due to being influenced, even with a batch of multiple
Its initial mechanical performance difference of condensation material test specimen may also be larger, and the composite material test piece of different ratio is in certain aging week
Section has different variations or increases or decreases after phase, and is difficult the accurate net cross-sectional area of test.Therefore, if to multiple
Condensation material still using above-mentioned strength character reduction coefficient method of the prior art, will lead to the discreteness of strength test results very
Greatly, the mechanical property datum mark disunity and between different tests sample, corresponding reduction coefficient can only express uncertain change
Law, scientific poor and reliability be not high.
In addition, in the prior art for the research of composite material durability it is main or it is a kind of qualitatively study, Zhi Neng
Under specific environment, research composite material endurance quality with influence factor change caused by variation tendency.Due to composite wood
Expect the diversity of component diversity in itself and external environment, most of research of the prior art all can only obtain some from
Then scattered data judge the variation tendency of endurance quality or obtain some simple models by these discrete datas,
These all much can not be as the foundation of multiple material durability quantitative design.Therefore, composite material durability quantitative design is carried out
Deeper research, by be composite material preferably in engineering especially under complex environment engineering in be applied and provide
Relatively reliable guarantee.
Invention content
In view of this, the present invention provides a kind of non-damaging test method of the durability of fibre reinforced composites, from
And it can be effectively prevented from because of the initial mechanical performance difference of test sample shadow caused by composite material durability test result
It rings, reduces the discreteness of result of the test, improves the stability and reliability of measuring accuracy and test result.
What technical scheme of the present invention was specifically realized in：
A kind of non-damaging test method of the durability of fibre reinforced composites, this method include：
Multiple fibre reinforced composites test specimens of same batch are assigned to a reserved test specimen group and the examination of N number of standard
Include multiple fibre reinforced composites test specimens in part group, and each in reserved test specimen group and standard specimen group；Wherein, N is
Natural number；
Destructive strength pull test is carried out respectively to reserving each reserved test specimen in test specimen group, is obtained each reserved
The destructive test results of test specimen；
According to the destructive test results of each reserved test specimen, the stretching to the non-damaging extension test of standard specimen is determined
The size of power；
According to the size of identified drawing force, each standard specimen in each standard specimen group is carried out M times respectively
Non-damaging extension test experiment, obtains tensile stress-strain curve, M springform of each standard specimen is obtained by calculation
Magnitude, and then obtain the average elastic modulus carved at the beginning of each standard specimen；Wherein, M is natural number；
Each standard specimen in each standard specimen group is placed individually into aging in preset test environment；
Pre-set multiple and different ageing time points；In each ageing time point, distinguish from the test environment
Each standard specimen is taken out, and according to the size of identified drawing force, M non-damaging stretching is respectively carried out to each
Testing experiment obtains tensile stress-strain curve, M elastic mould value of each standard specimen is obtained by calculation, and then obtain
To the average elastic modulus in current ageing time point of each standard specimen；After completing test every time, by standard specimen again
It is put into corresponding test environment and continues degradation.
Preferably, this method still further comprises：
According to each standard specimen in the elasticity modulus of different ageing time points, the springform of each standard specimen is obtained
Measure the relation curve that changes with time.
Preferably, the N is the number of the test environment type used in test.
Preferably, the destructive test results include：
Ultimate tensile strength, limiting strain and load-deformation curve.
Preferably, the size principle for determining the drawing force is：
So that fibrous composite test specimen is in elastic stage always during entire non-damaging extension test.
Preferably, the value of the M is 1,2,3,4 or 5.
Preferably, each standard specimen in each standard specimen group carries out M non-damaging extension test respectively
Experiment, obtaining the average elastic modulus carved at the beginning of each test specimen can include：
It carries out M non-damaging extension test experiment respectively to each standard specimen in each standard specimen group, is drawn
Load-deformation curve is stretched, M elasticity modulus of each standard specimen is respectively obtained by calculating；
Using the average value of M elasticity modulus of each standard specimen as the average elasticity mould carved at the beginning of the test specimen
Amount.
Preferably, the preset test environment includes：Hygrothermal environment, ultraviolet irradiation environment and/or seawater impregnate ring
Border.
As above as it can be seen that in the non-damaging test method of the durability of fibre reinforced composites in the present invention, due to
It has used with a batch of fibre reinforced composites test specimen as reserved test specimen and standard specimen, and has carried out based on test bullet
Property modulus the different degradation periods after performance change test, and above-mentioned test method is in fiber-reinforced composite material
The elastic stage of material test specimen carrys out testing elastic modulus, and can't destroy each standard specimen, without considering certain digestion period
The variation (increasing or decreasing) in test specimen section afterwards, and using same fibre reinforced composites test specimen in each aging
Between the test result put, i.e. the datum mark of test data is identical, therefore, compared with strength test method of the prior art, this
Method in invention can be effectively reduced the discreteness of result of the test, improve measuring accuracy, and stability, reliability also have
Larger improvement is efficiently avoided because the initial mechanical performance difference of test sample makes composite material durability test result
Into influence.
Description of the drawings
Fig. 1 is the flow of the non-damaging test method of the durability of the fibre reinforced composites in the embodiment of the present invention
Figure.
Specific embodiment
For technical scheme of the present invention and advantage is more clearly understood, below in conjunction with drawings and the specific embodiments, to this
Invention is described in further detail.
Fig. 1 is the flow of the non-damaging test method of the durability of the fibre reinforced composites in the embodiment of the present invention
Figure.
As shown in Figure 1, the non-damaging test method packet of the durability of fibre reinforced composites in the embodiment of the present invention
Include step as described below：
Step 101, multiple fibre reinforced composites test specimens of same batch are assigned to a reserved test specimen group and N
Include multiple fibre reinforced composites test specimens in a standard specimen group, and each in reserved test specimen group and standard specimen group.
Wherein, N is natural number.
In addition, preferably, in a specific embodiment of the present invention, N can be the test environment type used in test
Number.If for example, N kinds will be used in the non-damaging test method of the durability of fibre reinforced composites in the present invention
Test environment is tested, then can set N number of standard specimen group, so that each standard specimen group corresponds to one
Kind test environment.If having only used a kind of test environment in testing, 1 standard specimen group can be only set.
It in the inventive solutions, can will be same after required amount of fibre reinforced composites have been made
A part of test specimen in the fibre reinforced composites test specimen of one batch is as reserved test specimen group, and by another part fiber
Enhancing composite material test piece is respectively divided into N number of standard specimen group.
It in the inventive solutions, can be according to the needs of practical situations (for example, the survey used in test
The number of test ring border type), pre-set the value of above-mentioned N.It is pre- respectively alternatively, it is also possible to the needs of practical situations
Reserved test specimen group and the number of the fibre reinforced composites test specimen in N number of standard specimen group are first set.
Step 102, destructive strength pull test is carried out respectively to reserving each reserved test specimen in test specimen group, obtain
The destructive test results of each reserved test specimen.
For example, preferably, in the inventive solutions, the destructive test results can include：Ultimate elongation
Intensity, limiting strain and load-deformation curve.
It is same batch due to reserving each reserved test specimen in test specimen group with each standard specimen in standard specimen group
Fibre reinforced composites test specimen, therefore, can by the destructive test results of the obtained each reserved test specimen of this step
Of great value reference frame is provided with the size of the controlled quentity controlled variable for the subsequent non-damaging test to standard specimen.
Step 103, according to the destructive test results of each reserved test specimen, determine that the non-damaging stretching to standard specimen is surveyed
The size of the drawing force of examination.
Before not being destroyed or not damaging, fibrous composite is in linear elasticity state in all stage of stretching,
Therefore any section theoretically on its load-deformation curve is used equally for calculating elasticity modulus.But in practical fiber composite
In material tensile test, if too small to the drawing force of fibrous composite test specimen, load-deformation curve is unstable；And such as
Fruit drawing force is excessive, then will generate damage to fibrous composite test specimen.
It therefore, in the inventive solutions, will be before non-damaging extension test experiment be carried out to standard specimen, in advance
First according to the destructive test results by the obtained each reserved test specimen of above-mentioned steps 102, in this, as reference, determining pair
The size of the drawing force of the non-damaging extension test of standard specimen, so that during subsequent non-damaging extension test, mark
Quasi- test specimen can be stretched on tensile testing machine based on the size of identified drawing force (i.e. using proof stress or strain
Mode stretches).
In addition, preferably, in a specific embodiment of the present invention, the principle for determining the size of the drawing force is：So that
Fibrous composite test specimen is during entire non-damaging extension test always in elastic stage, i.e. fibrous composite test specimen
Suffered drawing force will not damage the fibrous composite test specimen during non-damaging extension test.
Step 104, according to the size of identified drawing force, each standard specimen in each standard specimen group is distinguished
M non-damaging extension test experiment is carried out, tensile stress-strain curve is obtained, M of each standard specimen is obtained by calculation
Elastic mould value, and then obtain the average elastic modulus carved at the beginning of each standard specimen.
Wherein, M is natural number.
In the inventive solutions, taking for above-mentioned M can be pre-set according to the needs of practical situations
Value.For example, preferably, in a specific embodiment of the present invention, the value of the M can be 1,2,3,4 or 5.
For example, preferably, in one particular embodiment of the present invention, the M is 3；At this point, described try each standard
Each standard specimen in part group carries out M non-damaging extension test experiment respectively, obtains carving at the beginning for each test specimen
Average elastic modulus can include：
It carries out M non-damaging extension test experiment respectively to each standard specimen in each standard specimen group, is drawn
Load-deformation curve is stretched, M elasticity modulus of each standard specimen is respectively obtained by calculating；
Using the average value of M elasticity modulus of each standard specimen as the average elasticity mould carved at the beginning of the test specimen
Amount.
Step 105, each standard specimen in each standard specimen group is placed individually into preset test environment always
Change.
For example, in the preferred embodiment of the present invention, if a shared N number of standard specimen group and N kinds are preset
Test environment, then each standard specimen in each standard specimen group in this N number of standard specimen group can be divided
It is not placed into aging in corresponding test environment.
In addition, preferably, in a specific embodiment of the present invention, the preset test environment can include：Damp and hot ring
Border, ultraviolet irradiation environment and/or seawater impregnate environment etc..It is of course also possible to it is other environment that needs to be tested, herein
It will not enumerate.
Step 106, multiple and different ageing time points is pre-set；In each ageing time point, from the test wrapper
Take out each standard specimen in border respectively, and according to the size of identified drawing force, each is respectively carried out M times it is non-
Extension test experiment is damaged, tensile stress-strain curve is obtained, M elasticity modulus of each standard specimen is obtained by calculation
Value, and then obtain the average elastic modulus in current ageing time point of each standard specimen；After completing test every time, by standard
Test specimen, which is reentered into corresponding test environment, continues degradation.
In the inventive solutions, multiple ageing time points can be pre-set.For example, 10 agings can be set
Time point.Therefore, in the 1st ageing time point, standard specimen can all be taken out from test environment；Then, for mark
Quasi- test specimen all carries out M non-damaging extension test experiment, obtains tensile stress-strain curve, mark is then obtained by calculation again
M elastic mould value of quasi- test specimen, then can be using the average value of M elasticity modulus of each standard specimen as the standard
The average elastic modulus in the 1st ageing time point of test specimen.The rest may be inferred, during for the 2nd~10 ageing time point into
The above-mentioned operation of row, final 10 average elastic modulus that can obtain each standard specimen, i.e., in above-mentioned 10 agings
Between the average elastic modulus put；During this period, each standard specimen has actually carried out (10*M) secondary non-damaging stretching survey
It has a try and tests.
Therefore, through the above steps 104~106, you can to obtain each standard specimen from 0 moment (when i.e. initial
Carve) play it is preset termination the time until Each point in time (including initial time and each ageing time point) springform
Amount.
Due to elasticity modulus be change in its basic mechanical performance index the most stablize, and above-mentioned test method be
Elastic stage testing elastic modulus can't destroy each standard specimen, therefore can obtain each standard specimen at the beginning
It carves to the elasticity modulus of time point each in off-test (i.e. initial time and each ageing time point), so can be marked
One elasticity modulus based on same benchmark of quasi- test specimen changes with time relation curve, so as to avoid because of test sample
Benchmark different problems caused by difference, influence of the error for efficiently avoiding generating by benchmark difference to result of the test.Cause
This, by measuring the elasticity modulus of fibre reinforced composites, analyzes its elastic modulus change rule, it is possible to sum up fiber
Enhance deterioration rule, the elasticity modulus degradation mechanism of composite material.
Further, in the inventive solutions, the durability of above-mentioned fibre reinforced composites is non-damaging
Test method can further include：
Step 107, each standard specimen is obtained in the elasticity modulus of different ageing time points according to each standard specimen
Elasticity modulus change with time relation curve.
In this step, it can also be obtained further according to each standard specimen in the elasticity modulus of different ageing time points
Elasticity modulus to each standard specimen changes with time relation curve, so as to preferably analyze fiber-reinforced composite
Changing rule, deterioration rule, elasticity modulus degradation mechanism of the elasticity modulus of material etc..
In view of the natural environment complicated and changeable residing for civil engineering structure, durability Design demand is also will with engineering
Variation is asked, in order to form unified design pattern, needs to establish various fibre reinforced composites under different engineering-environments
Performance deterioration rule model.Since existing model of the prior art is all based on strength deterioration rule, before having
Some defects stated.So in the elasticity modulus deterioration test and rule point of completing the fibre reinforced composites of typical condition
After analysis research, the model using elasticity modulus deterioration rule can be established, forms more scientific rational mathematical model, so as to
The endurance quality of quantitative analysis fibre reinforced composites.
In conclusion in the inventive solutions, due to the use of being tried with a batch of fibre reinforced composites
Part has carried out the change of the performance after the different degradation periods based on testing elastic modulus as reserved test specimen and standard specimen
Change test, and above-mentioned test method is to carry out testing elastic modulus in the elastic stage of fibre reinforced composites test specimen, and
Each standard specimen can't be destroyed, without considering the variation (increasing or decreasing) in test specimen section after certain digestion period, and
Using same fibre reinforced composites test specimen the test result, i.e. test data of each ageing time point datum mark
Identical, therefore, compared with strength test method of the prior art, the method in the present invention can be effectively reduced result of the test
Discreteness, improve measuring accuracy, and stability, reliability also have greatly improved, and efficiently avoid because of test sample
This initial mechanical performance difference is influenced caused by composite material durability test result.Moreover, further, utilization is above-mentioned
Elasticity modulus result of the test, can also durable Journal of Sex Research quantitatively be carried out to fibre reinforced composites.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God and any modification, equivalent substitution, improvement and etc. within principle, done, should be included within the scope of protection of the invention.
Claims (8)
1. a kind of non-damaging test method of the durability of fibre reinforced composites, which is characterized in that this method includes：
Multiple fibre reinforced composites test specimens of same batch are assigned to a reserved test specimen group and N number of standard specimen group
In, and each include multiple fibre reinforced composites test specimens in reserved test specimen group and standard specimen group；Wherein, N is nature
Number；
Destructive strength pull test is carried out respectively to reserving each reserved test specimen in test specimen group, obtains each reserved test specimen
Destructive test results；
According to the destructive test results of each reserved test specimen, determine to the drawing force of the non-damaging extension test of standard specimen
Size；
According to the size of identified drawing force, M non-damage is carried out respectively to each standard specimen in each standard specimen group
Hinder extension test experiment, obtain tensile stress-strain curve, M elastic mould value of each standard specimen is obtained by calculation,
And then obtain the average elastic modulus carved at the beginning of each standard specimen；Wherein, M is natural number；
Each standard specimen in each standard specimen group is placed individually into aging in preset test environment；
Pre-set multiple and different ageing time points；In each ageing time point, taken out respectively from the test environment
Each standard specimen, and according to the size of identified drawing force, M non-damaging extension test is respectively carried out to each
Experiment, obtains tensile stress-strain curve, M elastic mould value of each standard specimen is obtained by calculation, and then obtains every
The average elastic modulus in current ageing time point of a standard specimen；After completing test every time, standard specimen is reentered into
Continue degradation in corresponding test environment.
2. according to the method described in claim 1, it is characterized in that, this method still further comprises：
According to each standard specimen different ageing time points elasticity modulus, obtain the elasticity modulus of each standard specimen with
The variation relation curve of time.
3. according to the method described in claim 1, it is characterized in that：
The N is the number of the test environment type used in test.
4. according to the method described in claim 1, it is characterized in that, the destructive test results include：
Ultimate tensile strength, limiting strain and load-deformation curve.
5. according to the method described in claim 1, it is characterized in that, the size principle for determining the drawing force is：
So that fibrous composite test specimen is in elastic stage always during entire non-damaging extension test.
6. according to the method described in claim 1, it is characterized in that：
The value of the M is 1,2,3,4 or 5.
7. according to the method described in claim 1, it is characterized in that, each standard specimen in each standard specimen group
M non-damaging extension test experiment is carried out respectively, and obtaining the average elastic modulus carved at the beginning of each test specimen can include：
It carries out M non-damaging extension test experiment respectively to each standard specimen in each standard specimen group, obtains stretching and answer
Force-strain curve respectively obtains M elasticity modulus of each standard specimen by calculating；
Using the average value of M elasticity modulus of each standard specimen as the average elastic modulus carved at the beginning of the test specimen.
8. according to the method described in claim 1, it is characterized in that, the preset test environment includes：
Hygrothermal environment, ultraviolet irradiation environment and/or seawater impregnate environment.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109187185A (en) * | 2018-09-21 | 2019-01-11 | 中国石油大学(华东) | A kind of polymer damage development test method and system |
| CN110967174A (en) * | 2019-12-03 | 2020-04-07 | 中国核电工程有限公司 | Method for verifying matching performance of ferrule connector and instrument tube for nuclear power station |
| CN111175118A (en) * | 2020-01-20 | 2020-05-19 | 中国建筑科学研究院有限公司 | Method for estimating remaining service life of durability of masonry block |
| CN111721649A (en) * | 2020-06-29 | 2020-09-29 | 哈尔滨工程大学 | Method for testing compression resistance and peel strength of polyimide foam in honeycomb core material |
| CN112304756A (en) * | 2020-10-16 | 2021-02-02 | 中国航发四川燃气涡轮研究院 | Method for representing circumferential tensile property of annular structure of fiber reinforced composite material |
| CN112903471A (en) * | 2021-01-19 | 2021-06-04 | 中国人民解放军火箭军工程大学 | Aging modulus analysis method and system for material containing uniform pores |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6250166B1 (en) * | 1999-06-04 | 2001-06-26 | General Electric Company | Simulated dovetail testing |
| CN102778386A (en) * | 2012-08-03 | 2012-11-14 | 湘潭电机股份有限公司 | Method for forecasting engineering service life of glass fiber reinforced plastic sleeve |
| CN104792626A (en) * | 2015-04-21 | 2015-07-22 | 东南大学 | Experimental device of FRP rib durability under stretching stress and environment coupling effect |
| CN105424474A (en) * | 2015-11-03 | 2016-03-23 | 北京交通大学 | Method for evaluating damage accumulation inside steel structure thick plate |
-
2017
- 2017-12-25 CN CN201711420411.6A patent/CN108225951A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6250166B1 (en) * | 1999-06-04 | 2001-06-26 | General Electric Company | Simulated dovetail testing |
| CN102778386A (en) * | 2012-08-03 | 2012-11-14 | 湘潭电机股份有限公司 | Method for forecasting engineering service life of glass fiber reinforced plastic sleeve |
| CN104792626A (en) * | 2015-04-21 | 2015-07-22 | 东南大学 | Experimental device of FRP rib durability under stretching stress and environment coupling effect |
| CN105424474A (en) * | 2015-11-03 | 2016-03-23 | 北京交通大学 | Method for evaluating damage accumulation inside steel structure thick plate |
Non-Patent Citations (2)
| Title |
|---|
| 任慧韬 等: "纤维增强复合材料的耐久性能试验研究", 《建筑材料学报》 * |
| 余建伟 等: "湿热环境下碳纤维增强复合材料的耐久性试验研究", 《工业建筑》 * |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109187185A (en) * | 2018-09-21 | 2019-01-11 | 中国石油大学(华东) | A kind of polymer damage development test method and system |
| CN110967174A (en) * | 2019-12-03 | 2020-04-07 | 中国核电工程有限公司 | Method for verifying matching performance of ferrule connector and instrument tube for nuclear power station |
| CN111175118A (en) * | 2020-01-20 | 2020-05-19 | 中国建筑科学研究院有限公司 | Method for estimating remaining service life of durability of masonry block |
| CN111175118B (en) * | 2020-01-20 | 2022-04-29 | 建研院检测中心有限公司 | Method for estimating remaining service life of durability of masonry block |
| CN111721649A (en) * | 2020-06-29 | 2020-09-29 | 哈尔滨工程大学 | Method for testing compression resistance and peel strength of polyimide foam in honeycomb core material |
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| CN112304756A (en) * | 2020-10-16 | 2021-02-02 | 中国航发四川燃气涡轮研究院 | Method for representing circumferential tensile property of annular structure of fiber reinforced composite material |
| CN112304756B (en) * | 2020-10-16 | 2023-07-21 | 中国航发四川燃气涡轮研究院 | Circumferential tensile property characterization method for annular structure of fiber reinforced composite material |
| CN112903471A (en) * | 2021-01-19 | 2021-06-04 | 中国人民解放军火箭军工程大学 | Aging modulus analysis method and system for material containing uniform pores |
| CN113707243A (en) * | 2021-09-01 | 2021-11-26 | 上海交通大学 | Multi-scale method for evaluating creep durability of steel-wood element wood |
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