CN106338486A - Non-destructive detection method of storage ageing performance of propellant/liner bonding interface - Google Patents
Non-destructive detection method of storage ageing performance of propellant/liner bonding interface Download PDFInfo
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- CN106338486A CN106338486A CN201510555559.5A CN201510555559A CN106338486A CN 106338486 A CN106338486 A CN 106338486A CN 201510555559 A CN201510555559 A CN 201510555559A CN 106338486 A CN106338486 A CN 106338486A
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Abstract
The invention relates to a nondestructive detection method of the storage ageing performance of a propellant/liner bonding interface, used for spaceflight fuel nondestructive detection. The method comprises the following steps: sample preparation and parameter detection, data analysis and mathematic modeling, and parameter calculation and data processing, wherein the sample preparation and parameter detection step comprises contrastive sample preparation and contrast parameter establishment which are used for macroscopic detection, and detection sample preparation and infrared spectrum detection which are used for microanalysis; infrared spectrogram analysis and establishment of a mathematical relationship are carried out in the data analysis and mathematic modeling step; and in the parameter calculation and data processing step, peak separation software of an infrared spectrometer is used to acquire data, and the data is substituted to the mathematical relationship, and parameter calculation is carried out to acquire a performance parameter. The method adopts a tiny amount sampling mode, infrared spectrum detection and mathematic modeling to realize spectrogram analysis and data processing in order to obtain the bonding performance index of the propellant/liner bonding interface. The method has the characteristics of convenient detection process, good data repeatability, reliable parameter analysis and optimal data processing.
Description
Technical field
The present invention relates to a kind of material Dynamic Non-Destruction Measurement of the chemical field of aerospace fuel, specifically a kind of propellant/lining bonding interface bin aging performance nondestructive testing method.
Background technology
Generally, the Performance Evaluating Indexes of nitrate plasticising polyethers nepe propellant/lining bonding interface include adhesive property, bonding deterioration parameter, shelf characteric and storage life etc..Evaluation method of the prior art relates generally to detect test specimen and two aspects of evaluating, and its detection test specimen is standard rectangular test specimen, and evaluating is pull-off strength, i.e. " standard rectangular test specimen pull-off strength evaluation assessment ".The method applicable object is limited, evaluating macroscopic view, has some superiority for the formula development and product type selection of nepe propellant and lining.
For the propellant/lining product of adherent cast solid propellant rocket, there is larger difference in the standard specimen due to its bonding interface virtual condition and free state, non-destructively obtaining bonding interface test sample also has technical difficulty, thus is unsuitable for reflecting the performance of nepe propellant/lining bonding interface using standard rectangular test specimen pull-off strength evaluation assessment.
Content of the invention
The invention aims to providing a kind of propellant/lining bonding interface bin aging performance nondestructive testing method, methods described can non-destructively obtain detection sample and measure micro-property parameter, reliably set up the quantitative relationship of micro-property parameter and macro property parameter, effectively evaluate the adhesive property of nepe propellant/lining bonding interface, bonding deteriorates the indexs such as parameter, shelf characteric, storage life.
The technical scheme is that
Design a kind of propellant/lining bonding interface bin aging performance nondestructive testing method, the method comprising the steps of: sample preparation and parameter detecting, data analysis and mathematical modeling, parameter calculates and data processing.
Step one, sample preparation and parameter detecting, the detection sample preparation with alignment parameters foundation, being used for micro-analysis including the comparison sample preparation for macroscopic view detection and infrared spectrum detection；Compared sample with the standard rectangular test specimen of nepe propellant, preparation compares sample, measure mechanical property, set up alignment parameters, that is, obtain standard rectangular test specimen pull-off strength with aging temperature and ageing time delta data and rule；Obtain micro boundary material, preparation detection sample, carry out infrared spectrum detection.
Step 2, data analysis and mathematical modeling, carry out the foundation of infrared spectrogram parsing and relationship；Boundary material infrared spectrogram is parsed, swarming software using infrared spectrometer, obtain characteristic absorption peak area, set up the relation with aging temperature and ageing time, i.e. the Mathematical Modeling of standard rectangular test specimen macro property data and micro boundary material infrared spectrum parameter.
Step 3, parameter calculates and data processing, and the swarming software using infrared spectrometer obtains data, substitutes into relationship and enters line parameter calculating, obtains performance parameter.
The method have the benefit that: because sample preparation and parameter detecting include preparing with infrared spectrum detection it is thus possible to reliably set up micro-property parameter and the quantitative relationship of macro property parameter with alignment parameters foundation, for the detection sample of micro-analysis for the sample preparation that compares that macroscopic view detects.Simultaneously because when data analysis and mathematical modeling, carrying out the foundation of infrared spectrogram parsing and relationship it is thus possible to effectively evaluate the indexs such as the adhesive property of nepe propellant/lining bonding interface, bonding deterioration parameter, shelf characteric, storage life.Detect additionally, due to using infrared spectrum, thus only need to obtain micro boundary material at bonding interface, thus Non-destructive sampling and a small amount of sampling can be realized.The present invention also has detection process conveniently, and data redundancy is good, and Parameter analysis reliability data processes the feature optimizing.
Brief description
Fig. 1 is pull-off strength and the ageing time graph of a relation of embodiment 1.
Fig. 2 is the boundary material of embodiment 1
With ageing time graph of a relation.
Fig. 3 is pull-off strength and the ageing time graph of a relation of embodiment 2.
Specific embodiment
With reference to embodiment, the present invention is further described.
Following examples are the implementation results in order to the present invention is more preferably described; but protection scope of the present invention is not limited thereto; any those skilled in the art in the technical scope that the present invention discloses, the change or replacement that can readily occur in, all should be included within the scope of the present invention.
Embodiment 1
Step one,
(1) the explosion-proof ageing oven that the standard rectangular test specimen of nepe propellant is put into 70 DEG C of temperature of regulation carries out accelerated ageing, periodically sampling ergometry performance, obtains standard rectangular test specimen pull-off strength with aging temperature and ageing time delta data and rule.
(2) prepare examination of infrared spectrum sample.First, isolate required sample (i.e. the sample of propellant/lining/heat insulation layer composition) between steel plate and heat insulation layer using application specific standard rectangular coupon sample preparation cutter；Secondly, using the nepe propellant that the excision of biologic slice machine is unnecessary, make at the bonding interface that sample formed between nepe propellant and lining, only to retain the nepe propellant material (i.e. alleged boundary material) of about 50 μm of thickness.
(3) sample retaining about 50 μm of boundary materials is carried out infrared spectrum analysis test (using decay total reflection module, art), obtain the boundary material infrared spectrogram under sample art pattern.
Step 2,
(1) boundary material infrared spectrogram is parsed, confirm mainly aging chemical reaction functional group absworption peak (characteristic absorption peak), using the swarming software of infrared spectrometer, obtain mainly aging chemical reaction functional group and absorb peak area and set up the relation with aging temperature and ageing time.
(2) the standard rectangular test specimen macro property of the different aging temperatures of foundation and ageing time and its boundary material mainly absworption peak of aging chemical reaction functional group or characteristic absorption peak area relationship or Mathematical Modeling.
Step 3,
(1) take micro boundary material to carry out infrared spectrum analysis at the bonding interface of adherent cast solid propellant rocket motor charge product, using the swarming software of infrared spectrometer, obtain the mainly absworption peak of aging chemical reaction functional group or characteristic absorption peak area.
(2) substitute into the relationship of foundation, you can calculate shelf characteric data or the state of adherent cast solid propellant rocket motor charge product bonding interface.
Fig. 1 and Fig. 2 gives 70 DEG C of aging temperatures of standard rectangular test specimen, different ageing time and its pull-off strength, wave numbercm-1Place's INFRARED ABSORPTION peak area ratioRelation.
Table 1 gives standard rectangular test specimen macro property pull-off strength and mainly aging chemical reaction functional group characteristic absorption peak area relationship or Mathematical Modeling.
Table 1 descending branch pull-off strength with
With
Relation
| Sequence | Regression equation | Regression parameter | |
| 1 | r=0.99838；n=3；f=1 | 0.988 | |
| 2 | r=-0.99838；n=3；f=1 | 0.988 |
Note: r is linearly dependent coefficient；N is sample number；F is the free degree, f=n-2；
Tabular value/theoretical value for coefficient correlation during α=0.10.
Embodiment 2
Step one,
(1) the explosion-proof ageing oven that standard rectangular test specimen is put into 60 DEG C of temperature of regulation carries out accelerated ageing, its mechanical property of regular sampling and testing, obtains standard rectangular test specimen with aging temperature and ageing time delta data and rule.
(2) prepare examination of infrared spectrum sample.First, isolate required sample (i.e. the sample of propellant/lining/heat insulation layer composition) between the steel plate and heat insulation layer of standard rectangular test specimen using application specific standard rectangular coupon sample preparation cutter；Secondly, using the nepe propellant that the excision of biologic slice machine is unnecessary, make at the bonding interface that sample formed between nepe propellant and lining, only to retain the nepe propellant material (i.e. alleged boundary material) of about 50 μm of thickness.
(3) sample retaining about 50 μm of boundary materials is carried out infrared spectrum analysis, obtain the boundary material infrared spectrogram under sample art pattern.
Step 2,
(1) boundary material infrared spectrogram is parsed, confirm mainly aging chemical reaction functional group absworption peak (characteristic absorption peak), using the swarming software of infrared spectrometer, obtain mainly aging chemical reaction functional group and absorb peak area and set up the relation with aging temperature and ageing time.
(2) Criterion rectangular coupon macro-mechanical property and the boundary material mainly absworption peak of aging chemical reaction functional group or characteristic absorption peak area relationship or Mathematical Modeling.
Step 3,
(1) take micro boundary material to carry out infrared spectrum analysis at bonding interface from adherent cast solid propellant rocket motor charge product, using the swarming software of infrared spectrometer, obtain the mainly absworption peak of aging chemical reaction functional group or characteristic absorption peak area.
(2) substitute into the relationship of foundation, you can calculate shelf characteric or the state of adherent cast solid propellant rocket motor charge product bonding interface.
Table 2, Fig. 3 sets forth 60 DEG C of aging temperatures of standard rectangular test specimen, different ageing time pull-off strength and boundary material in wave numbercm-1And wave numbercm-1Place's INFRARED ABSORPTION peak area ratio、Data and signal.
Table 3 gives pull-off strength and declines area, different ageing time standard rectangular test specimen pull-off strength and the boundary material mainly absworption peak of aging chemical reaction functional group or characteristic absorption peak area、Relation or Mathematical Modeling.
The different ageing time standard rectangular test specimen mechanical property of table 2 and boundary material 、
| Rectangular coupon is numbered | Ageing time, w | , mpa | ||
| zj9964-t60t0 | 0 | - | - | 1.21 |
| zj9964-t60t4 | 26 | 0.738 | 0.262 | 1.19 |
| zj9964-t60t5 | 34 | 0.734 | 0.266 | 1.14 |
| zj9964-t60t6 | 40 | 0.752 | 0.248 | 1.21 |
| zj9964-t60t7 | 48 | 0.736 | 0.264 | 1.04 |
| zj9964-t60t8 | 56 | 0.745 | 0.255 | 0.94 |
| zj9964-t60t9 | 66 | 0.731 | 0.269 | 0.57 |
| zj9964-t60t10 | 75 | 0.683 | 0.317 | 0.47 |
Table 3 descending branch standard rectangular test specimen pull-off strength and boundary material 、 Relation
| Sequence | Regression equation | Regression parameter | |
| 1 | r=0.81412；n=5；f=3 | 0.805 | |
| 2 | r=-0.81759；n=5；f=3 | 0.805 |
Claims (3)
1. a kind of propellant/lining bonding interface bin aging performance nondestructive testing method, the step of methods described is: sample preparation and parameter detecting, data analysis and mathematical modeling, parameter calculates and data processing, it is characterized in that: when sample preparation and parameter detecting, detect including for the comparison sample preparation of macroscopic view detection and alignment parameters foundation, the preparation of detection sample and infrared spectrum for micro-analysis；When data analysis and mathematical modeling, carry out the foundation of infrared spectrogram parsing and relationship；Parameter calculates with during data processing, and the swarming software using infrared spectrometer obtains data, substitutes into relationship and enters line parameter calculating, obtains performance parameter.
2. propellant according to claim 1/lining bonding interface bin aging performance nondestructive testing method, it is characterized in that: when sample preparation and parameter detecting, detect including for the comparison sample preparation of macroscopic view detection and alignment parameters foundation, the preparation of detection sample and infrared spectrum for micro-analysis；Compared sample with the standard rectangular test specimen of nepe propellant, preparation compares sample, measure mechanical property, set up alignment parameters, that is, obtain standard rectangular test specimen pull-off strength with aging temperature and ageing time delta data and rule；Obtain micro boundary material, preparation detection sample, carry out infrared spectrum detection.
3. propellant according to claim 1/lining bonding interface bin aging performance nondestructive testing method, is characterized in that: when data analysis and mathematical modeling, carries out the foundation of infrared spectrogram parsing and relationship；Boundary material infrared spectrogram is parsed, swarming software using infrared spectrometer, obtain characteristic absorption peak area, set up the relation with aging temperature and ageing time, i.e. the Mathematical Modeling of standard rectangular test specimen macro property data and micro boundary material infrared spectrum parameter.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112595696A (en) * | 2020-12-11 | 2021-04-02 | 中国科学院西安光学精密机械研究所 | In-situ characterization method for bonding interface state under irradiation condition |
| CN116754211A (en) * | 2023-08-22 | 2023-09-15 | 中国人民解放军火箭军工程大学 | Method and related device for acquiring mechanical property information of solid rocket propeller |
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