CN110196278A - A kind of repairing quality evaluation method - Google Patents
A kind of repairing quality evaluation method Download PDFInfo
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- CN110196278A CN110196278A CN201810162980.3A CN201810162980A CN110196278A CN 110196278 A CN110196278 A CN 110196278A CN 201810162980 A CN201810162980 A CN 201810162980A CN 110196278 A CN110196278 A CN 110196278A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/30—Arrangements for calibrating or comparing, e.g. with standard objects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/0289—Internal structure, e.g. defects, grain size, texture
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/04—Wave modes and trajectories
- G01N2291/042—Wave modes
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Abstract
The present invention relates to detection field, especially a kind of repairing quality evaluation method.This repairing quality evaluation method is used to detect the repairing quality of composite material staged digging repair area, and using reference block, reference block is equipped with artificial defect；Staged digging repair area is area to be detected；The repairing quality evaluation method, comprising the following steps: S1: ultrasound detection is carried out to the artificial defect in reference block, detection sensitivity is adjusted, obtains reference waveform；S2: under the sensitivity, treating detection zone and carry out ultrasound detection, obtain measured waveform, and compare in measured waveform and reference waveform, the time and wave amplitude that flaw echo occurs.Repairing quality evaluation method provided by the invention carries out the adjustment of sensitivity before the detection for carrying out domain to be detected each time, so as to eliminate the adverse effect of human factor, obtains accurate testing result.
Description
Technical field
The present invention relates to detection field, especially a kind of repairing quality evaluation method.
Background technique
The damage that in-service aircraft is subject to is usually on the outside of body, and when repairing will not generally also remove damaged component, and
It is to place under repair at the scene to damage field.The repair method generallyd use is staged digging service technique, it may be assumed that excavates damage
Region, and make surface layer excavates that area is big, the area of excavating of deep layer is gradually reduced, and glue then is arranged in the inner surface for excavating region
Film, then the filled composite materials in excavating region, make composite material curing molding.Repairing for in-service aircraft, due to by
To the limitation of implementation condition and the influence of repairing zone position, the solidification that heating blanket carries out composite material is generallyd use.Such mode
Cured repairing area be easy there are poor surface smoothness, inner texture is uneven and there are dispersivity stomatas the features such as, therefore need
It to be detected using the pulse reflection method A sweep of manual contact formula, with the defect in overhauling area.But by this method to repair area into
It when row detection, is affected by human factors larger, is easy to cause testing result inaccurate.
Summary of the invention
Goal of the invention of the invention is: in view of the problems of the existing technology, a kind of repairing quality evaluation method is provided,
For the repairing quality of evaluating combined material step formula digging repair area, and human factor is eliminated to the unfavorable shadow of testing result
It rings.
To achieve the goals above, the technical solution adopted by the present invention are as follows:
A kind of repairing quality evaluation method is adopted for the repairing quality of evaluating combined material step formula digging repair area
With reference block, the reference block is equipped with artificial defect；
The staged digging repair area is area to be detected；
The repairing quality evaluation method, comprising the following steps:
S1: ultrasound detection is carried out to the artificial defect in reference block, detection sensitivity is adjusted, obtains reference waveform；
S2: under the sensitivity, treat detection zone carry out ultrasound detection, obtain measured waveform, and compare measured waveform and
In reference waveform, time and wave amplitude that flaw echo occurs.
The evaluation method provided through the invention, artificial defect is for simulating defect present in area to be detected.Each
Before the secondary detection for carrying out area to be detected, the adjustment of sensitivity is carried out, and by reference block with artificial scarce in reference block
It is compared on the basis of sunken echo so as to eliminate the adverse effect of human factor, obtains accurate testing result.
As a preferred solution of the present invention, the area to be detected is equipped with non-patch area, laying area and glue film, the laying
Area includes at least one laying being embedded in non-patch area, and glue film is set between laying Qu Yuwei patch area；
The reference block includes non-patch area, laying area and glue film, and laying area is embedded in non-patch area, and glue film is set to
Between laying Qu Yuwei patch area, the laying area in the reference block is identical as the structure in laying area in area to be detected, institute
The glue film stated in reference block is identical as the film structure in the area to be detected, and the laying area of the reference block is embedded at not
In patch area.
In the above scheme, area to be detected is corresponding with reference block, means non-patch area in area to be detected, laying
The relative position in area and glue film, it is identical as the relative position of non-patch area, laying area and glue film in reference block.Wherein, it spreads
Laying in floor area refers to, when repairing to damage field, the material of damage field is first excavated, then in excavating region
It is laid with material prepreg layer by layer, the molding that is heating and curing then is carried out to material prepreg, each layer of composite material is pre-
Leaching material can correspond to a laying.
It as a preferred solution of the present invention, include at least two layings, the stepped distribution of laying in laying area；
The reference block is equipped at least two artificial defects, one of them is set to a laying, another is set to another
One laying；
There are at least two detecting domains, the detecting domains are corresponding with an artificial defect in the area to be detected；
In the step S2, treating detection zone progress ultrasound detection includes:
It treats detecting domains corresponding with the artificial defect in step S1 on detection zone and carries out ultrasound detection.
The depth of defect is different, it will keeps the time of occurrence of defect and wave amplitude different.Therefore, have extremely in laying area
Few two layings, the defects of area to be detected is likely located in any depth in laying area.And for the defect of different depth,
The time that its flaw echo occurs is variant.In order to measure depth of defect, it is arranged at least two in reference block and manually lacks
It falls into, artificial defect is located in different layings, and by this design, the depth regardless of defect in area to be detected is being compared
In test block, it can find artificial defect and be corresponding to it.
Specifically, the quantity of artificial defect is determined according to the laying amount in laying area in reference block, it may be assumed that in laying area
In each laying, it is provided at least one artificial defect.When detecting, an artificial defect is first directed in reference block
It is detected, and debugs detection sensitivity, then detected in detecting domains corresponding with the artificial defect, to offset defect
Adverse effect of the depth difference to testing result sensitivity.
As a preferred solution of the present invention, further comprising the steps of:
S3. multiple test points are selected in detecting domains corresponding with the artificial defect in step S1, under same sensitivity,
Repeat step S2 on each test point in same detecting domains.
In order to achieve the purpose that complete detection, in reference block, after the debugging for carrying out a sensitivity, in detecting domains
Select multiple test points.
As a preferred solution of the present invention, artificial defect, the artificial defect in non-patch area are equipped in the non-patch area
It is adjacent with glue film, artificial defect is equipped in the laying area；
Underlapped region is staggered floor area in two neighboring laying；
In the repairing quality evaluation method:
If the test object of step S1 is the artificial defect in non-patch area, where each test point in step S3
Detecting domains correspond to the staggered floor area in area to be detected；
If the test object of step S1 is the artificial defect in laying, the detection where each test point in step S3
Domain corresponds to the laying in area to be detected.
It is influenced since glue film has the echo position of defect and wave amplitude, it may be assumed that for the defect in same depth, if wherein
One is located in laying area, another is located in non-patch area, since laying area and non-patch area are separated by glue film, time of the two
Wave wave amplitude and echo time can differences.In order to eliminate this factor to the adverse effect of testing result, for reference block
Same laying, artificial defect is respectively provided in laying area and non-patch area, to eliminate glue film to the unfavorable shadow of testing result
It rings.
As a preferred solution of the present invention, artificial defect is sized to, acceptable minimum scarce in design standard
Sunken size；
The relatively time of the defects of measured waveform the defects of echo and reference waveform echo and the wave amplitude, determine to
Whether there is unacceptable defect in detection zone, comprising:
If the wave amplitude of the defects of measured waveform echo is greater than or equal to the wave amplitude of the defects of reference waveform echo, and real
The time consistency that flaw echo occurs in the time and reference waveform that flaw echo occurs in waveform is surveyed, then Qu Zhongyu people to be detected
There are unacceptable defects for the corresponding depth of work defect.
The design of artificial defect size is carried out in the manner described above, in the detection, it is only necessary to compare echo in measured waveform
The size of echo wave amplitude in wave amplitude and reference waveform enables the result of detection more intuitive.
As a preferred solution of the present invention, the artificial defect is made of high ultrasonic attenuation materials.
The defect type generated in area to be tested is usually the stratiform air (being layered) in material.Highly attenuating material with
Between composite material because between the reflectivity and the sound intensity, with air and composite material of ultrasonic wave caused by acoustic impedance difference because of acoustic resistance
The reflectivity and the sound intensity of ultrasonic wave caused by robust is different, the reflectivity and the sound intensity of the two are relatively, it is possible to highly attenuating
Material proximate is regarded as air, to go simulation the defects of area to be tested by artificial defect, and to reference block and to
The waveform of detection zone compares, and realizes defects detection.
It is and compound it will be understood by those skilled in the art that above-mentioned high ultrasonic attenuation materials refer to according to above-mentioned principle
Between material because between the reflectivity and the sound intensity, with air and composite material of ultrasonic wave caused by acoustic impedance difference because of acoustic impedance difference
The reflectivity and the sound intensity of ultrasonic wave caused by different, the material of the reflectivity and the sound intensity of the two relatively.
Common high ultrasonic attenuation materials have: polytetrafluoroethylene (PTFE), lead etc..
As a preferred solution of the present invention, artificial defect by being embedded in reference block in advance, the gold with release agent coating
Belong to and generating.
In order to simulate the stratiform air in area to be tested material, artificial defect can also be arranged in this way: compare in processing
When test block, the metal with release agent coating is placed in the composite, and composite material is carried out in heat cure forming process, by
Different from Thermal expansion coefficient of composites in metal, metal surface release agent promotes to be detached between metal and composite material, thus
Stratiform air (being layered) is formed, in reference block to generate artificial defect.
Preferably, in step S1 and step S2, used detection frequency is 1.0MHz-20MHz.
Above-mentioned detection frequency, which can be avoided, generates excessive clutter, simultaneously, additionally it is possible to enough near surface resolution ratio is kept,
It is particularly suitable for the repairing quality detection of composite material staged digging repair area.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
1. between the defects detection for carrying out area to be detected each time, by carrying out sensitivity to the detection of reference block
Adjusting, human factor can be effectively reduced to the adverse effect of testing result；
2. the artificial defect provided with multiple and different positions of reference block, adjustable range can correspond to area to be detected
Any position in domain be accurately detected the defect of any position in area to be detected can；
3. the glue film two sides in reference block are provided with artificial defect, glue film is eliminated to the unfavorable shadow of testing result
It rings.
Detailed description of the invention
Fig. 1 is the Longitudinal cross section schematic of reference block provided by the invention.
Fig. 2 is the top view of reference block provided by the invention.
Fig. 3 is the Longitudinal cross section schematic of area to be tested of the invention.
Fig. 4 a) it is the schematic diagram for being located at laying area and artificial defect corresponding with center laying in reference block；
Fig. 4 b) be Qu Shangyu Fig. 4 a to be detected) in the corresponding detecting domains of artificial defect schematic diagram.
Fig. 5 a) it is the schematic diagram for being located at laying area and artificial defect corresponding with the first laying in reference block；
Fig. 5 b) be Qu Shangyu Fig. 5 a to be detected) in the corresponding detecting domains of artificial defect schematic diagram.
Fig. 6 a) it is the schematic diagram for being located at laying area and artificial defect corresponding with the second laying in reference block；
Fig. 6 b) be Qu Shangyu Fig. 6 a to be detected) in the corresponding detecting domains of artificial defect schematic diagram.
Fig. 7 a) it is the schematic diagram for being located at laying area and artificial defect corresponding with third laying in reference block；
Fig. 7 b) be Qu Shangyu Fig. 7 a to be detected) in the corresponding detecting domains of artificial defect schematic diagram.
Fig. 8 a) it is the schematic diagram for being located at laying area and artificial defect corresponding with the 4th laying in reference block；
Fig. 8 b) be Qu Shangyu Fig. 8 a to be detected) in the corresponding detecting domains of artificial defect schematic diagram.
Fig. 9 a) it is the schematic diagram for being located at non-patch area and artificial defect corresponding with center laying in reference block；
Fig. 9 b) be Qu Shangyu Fig. 9 a to be detected) in the corresponding detecting domains of artificial defect schematic diagram.
Figure 10 a) it is the schematic diagram for being located at non-patch area and artificial defect corresponding with the first staggered floor area in reference block；
Figure 10 b) be Qu Shangyu Figure 10 a to be detected) in the corresponding detecting domains of artificial defect schematic diagram.
Figure 11 a) it is the schematic diagram for being located at non-patch area and artificial defect corresponding with the second staggered floor area in reference block；
Figure 11 b) be Qu Shangyu Figure 11 a to be detected) in the corresponding detecting domains of artificial defect schematic diagram.
Figure 12 a) it is the schematic diagram for being located at non-patch area and artificial defect corresponding with third staggered floor area in reference block；
Figure 12 b) be Qu Shangyu Figure 12 a to be detected) in the corresponding detecting domains of artificial defect schematic diagram.
Figure 13 a) it is the schematic diagram for being located at non-patch area and artificial defect corresponding with the 4th staggered floor area in reference block；
Figure 13 b) be Qu Shangyu Figure 13 a to be detected) in the corresponding detecting domains of artificial defect schematic diagram.
Icon: 1- reference block；The non-patch area of 11-；12- glue film；13- laying area；15- artificial defect；131- first is spread
Layer；The second laying of 132-；133- third laying；The 4th laying of 134-；The center 138- laying；The area to be detected 2-；21- detecting domains.
Specific embodiment
With reference to the accompanying drawing, the present invention is described in detail.
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
Embodiment
Please refer to Fig. 1-Figure 13.The embodiment of the invention provides a kind of repairing quality evaluation method, this repairing quality is commented
Valence method is used to detect the repairing quality of composite material staged digging repair area.In this method, reference block is used
1。
In the present embodiment, reference block 1 makes referring to the structure snd size in area 2 to be detected.
Specifically, area 2 to be detected includes non-patch area 11, laying area 13 and glue film 12, the laying area 13 includes being embedded
At least one laying in non-patch area 11, glue film 12 are set between laying area 13 and non-patch area 11.
Reference block 1 includes non-patch area 11, laying area 13 and glue film 12.In reference block 1, laying area 13 is embedded at not
In patch area 11, glue film 12 is set between laying area 13 and non-patch area 11.Laying area 13 and area to be detected in reference block 1
The structure in the laying area 13 in 2 is identical.Glue film 12 in reference block 1 is identical as the structure of glue film 12 in area 2 to be detected.
Further, center laying 138, the first laying 131, the second laying 132, third laying are equipped in laying area 13
133 and the 4th laying 134.Center laying 138, the first laying 131, the second laying 132, third laying 133 and the 4th laying 134
Stepped distribution.
Wherein, the area of center laying 138 is less than the first laying 131, and the area of the first laying 131 is less than the second laying
132, the area of the second laying 132 is less than third laying 133, and the area of third laying 133 is less than the 4th laying 134.
The region Chong Die with center laying 138 is not the first staggered floor area in first laying 131, in the second laying 132 not with
The region that center laying 138 is overlapped is the second staggered floor area, and region Chong Die with center laying 138 is not the in third laying 133
Three staggered floor areas, the region Chong Die with center laying 138 is not the 4th staggered floor area in the 4th laying 134.
Using the structure, the structure in laying area 13 and the region excavated in repairing with it is identical.Glue film 12 and the first mistake
Floor area, the second staggered floor area, third staggered floor area, the 4th staggered floor area and center laying 138 contact.
Artificial defect 15 is equipped in reference block 1.In the present embodiment, artificial defect 15 is made of high ultrasonic attenuation materials.
In the other embodiments of the present embodiment, artificial defect 15 can also have release agent to apply by being embedded in reference block 1 in advance
The metal of layer generates.
Artificial defect 15 is sized to the size of acceptable minimum defect in design standard.
The position of artificial defect 15 is arranged in the following manner:
For laying area 13: laying 138, the first staggered floor area, the second staggered floor area, third staggered floor area and the 4th staggered floor at center
Artificial defect 15 is arranged in area；
Please refer to Fig. 1 and Fig. 2, for non-patch area 11: with center laying 138, the first staggered floor area, the second staggered floor area,
Artificial defect 15 is arranged in the corresponding position in third staggered floor area and the 4th staggered floor area.Correspondence herein refers to, on non-patch area 11 with
The position of each laying deep equality.
In the other embodiments of invention, the position of the artificial defect 15 in laying area 13 can also be close to each laying
The position at center is not limited solely in staggered floor area.
Referring to Fig. 2, further, in the circumferential direction in laying area 13, the artificial defect 15 in laying area 13 with do not repair
The artificial defect 15 for mending area 11 is mutually staggered, and probe is avoided to measure two artificial defects 15 in one test.
This repairing quality evaluation method the following steps are included:
S1: ultrasound detection is carried out to the artificial defect 15 in reference block 1, detection sensitivity is adjusted, obtains reference waveform；
S2: under the sensitivity, treat detection zone 2 carry out ultrasound detection, obtain measured waveform, and compare measured waveform and
In reference waveform, time and wave amplitude that flaw echo occurs.
Further, there are multiple detecting domains 21, a detecting domains 21 and an artificial defect 15 are right in area 2 to be detected
It answers.If desired step S2 is carried out in different detecting domains 21, then it will be before change detection domain 21, to one in reference block 1
A artificial defect 15 carries out step S1, and the artificial defect 15 is corresponding with the detecting domains 21 after switching, so as to adjust to applicable
In the detection sensitivity of the detecting domains 21.
In detection, used detection frequency is 1.0MHz-20MHz.
It is specific:
Fig. 4 and Fig. 9 is please referred to, for the artificial defect 15 of 138 depth of center laying, corresponding detecting domains 21 are
Region corresponding with center laying 138 on 2 surface of area to be detected；
Fig. 5 and Figure 10 is please referred to, for the artificial defect 15 of the first staggered floor depth, if the artificial defect 15 is located at laying
Area 13, then corresponding detecting domains 21 are region corresponding with the first laying 131 on the surface in area 2 to be detected；If this is artificial
Defect 15 is located at non-patch area 11, then corresponding detecting domains 21 are corresponding with the first staggered floor area on the surface in area 2 to be detected
Annular region；
Fig. 6 and Figure 11 is please referred to, for the artificial defect 15 of the second staggered floor depth, if the artificial defect 15 is located at laying
Area 13, then corresponding detecting domains 21 are region corresponding with the second laying 132 on the surface in area 2 to be detected；If this is artificial
Defect 15 is located at non-patch area 11, then corresponding detecting domains 21 are corresponding with the second staggered floor area on the surface in area 2 to be detected
Annular region；
Fig. 7 and Figure 12 is please referred to, for the artificial defect 15 of third staggered floor depth, if the artificial defect 15 is located at laying
Area 13, then region corresponding with third laying 133 in the corresponding area 2 to be detected of detecting domains 21；If the artificial defect 15
In non-patch area 11, then corresponding detecting domains 21 are annular region corresponding with third staggered floor area in area 2 to be detected；
Fig. 8 and Figure 13 is please referred to, for the artificial defect 15 of 134 depth of the 4th laying, if the artificial defect 15 is located at
Laying area 13, then corresponding detecting domains 21 are region corresponding with the 4th laying 134 on the surface in area 2 to be detected；If should
Artificial defect 15 is located at non-patch area 11, then corresponding detecting domains 21 are corresponding with the 4th staggered floor area in area 2 to be detected
Annular region.
The repairing quality evaluation method is further comprising the steps of:
S3. multiple test points are selected in detecting domains 21 corresponding with the artificial defect 15 in step S1, same sensitive
Under degree, repeat step S2 on each test point in same detecting domains 21.
In conclusion if the test object of step S1 is the artificial defect 15 in non-patch area 11, it is each in step S3
Test point corresponds to the staggered floor area in area 2 to be detected；
If the test object of step S1 is the artificial defect 15 in laying area 13, in step S3, each test point is corresponding
Laying in area 2 to be detected.
Detection example
It is illustrated below using the flaw evaluation of the center laying 138 in area 2 to be detected as example:
Please refer to Fig. 4 a), for the defects of laying area 13:
Ultrasound detection first is carried out in the artificial defect 15 in reference block 1 corresponding to the laying area 13 of center laying 138,
Sensitivity is adjusted, and obtains reference waveform, the flaw echo that artificial defect 15 will occur in reference waveform；
Please refer to Fig. 4 b), then corresponding to one inspection of selection in the detecting domains 21 of the artificial defect 15 in area 2 to be detected
Measuring point obtains the measured waveform of the test point；
Reference waveform and measured waveform are compared, if occurring flaw echo in measured waveform, and defect in measured waveform
The wave amplitude of flaw echo is greater than in the time consistency, measured waveform of flaw echo appearance in the time of echo appearance and reference waveform
Or the wave amplitude equal to flaw echo in reference waveform, then determine the position corresponding with the test point and in laying area 13
Heart laying 138 is the same as existing defects at the point of depth；
Under same sensitivity, in area 2 to be detected corresponding to the artificial defect 15 detecting domains 21 on choose it is multiple not
With the test point of position, the measured waveform of each test point is measured, and is compared respectively with reference waveform, until test point base
This covering center laying 138.
Please refer to Fig. 9 a), for the defects of non-patch area 11:
It is first ultrasonic corresponding to being carried out in the artificial defect 15 in the non-patch area 11 of center laying 138 in reference block 1
Detection adjusts sensitivity, and obtains reference waveform, the flaw echo that artificial defect 15 will occur in reference waveform；
Please refer to Fig. 9 b), an inspection is then chosen in detecting domains 21 corresponding with the artificial defect 15 in area 2 to be detected
Measuring point obtains the measured waveform of the test point；
Compare reference waveform in and measured waveform, if occur flaw echo in measured waveform, and in measured waveform lack
The wave amplitude for falling into flaw echo in the time consistency, measured waveform that flaw echo occurs in the time and reference waveform that echo occurs is big
In or equal in reference waveform flaw echo wave amplitude, then determine in non-patch area 11 position corresponding with the test point and
With center laying 138 with existing defects at the point of depth；
Under same sensitivity, in area 2 to be detected corresponding to the artificial defect 15 detecting domains 21 on choose it is multiple not
With the test point of position, the measured waveform of each test point is measured, and is compared respectively with reference waveform, until test point base
This covering center laying 138.
By above-mentioned mode, sensitivity is adjusted respectively in each artificial defect 15 of reference block 1, and to be detected
Each detecting domains 21 in area 2 are detected respectively, it can realize the complete detection for treating detection zone 2.
The beneficial effect of repairing quality evaluation method provided by the invention is:
1. sensitive by being carried out to the detection of reference block 1 between the defects detection for carrying out area 2 to be detected each time
The adjusting of degree can effectively reduce human factor to the adverse effect of testing result；
2. the artificial defect 15 provided with multiple and different positions of reference block 1, adjustable range can correspond to be checked
Any position for surveying area 2, be accurately detected the defect of any position in area 2 to be detected can；
3. eliminating glue film 12 to testing result in the artificial defect 15 that 12 two sides of glue film of reference block 1 are provided with
Adverse effect.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (9)
1. a kind of repairing quality evaluation method, special for the repairing quality of evaluating combined material step formula digging repair area
Sign is, using reference block, the reference block is equipped with artificial defect；
The staged digging repair area is area to be detected；
The repairing quality evaluation method, comprising the following steps:
S1: ultrasound detection is carried out to the artificial defect in reference block, detection sensitivity is adjusted, obtains reference waveform；
S2: it under the sensitivity, treats detection zone and carries out ultrasound detection, obtain measured waveform, and compare measured waveform and benchmark
In waveform, time and wave amplitude that flaw echo occurs.
2. repairing quality evaluation method according to claim 1, which is characterized in that the area to be detected is equipped with and does not repair
Area, laying area and glue film, the laying area include at least one laying being embedded in non-patch area, glue film be set to laying area with
Between non-patch area；
The reference block includes non-patch area, laying area and glue film, in the laying area and area to be detected in the reference block
Laying area structure it is identical, the glue film in the reference block is identical as the film structure in the area to be detected, described right
Laying area than test block is embedded in non-patch area.
3. repairing quality evaluation method according to claim 2, which is characterized in that include at least two pavings in laying area
Layer, the stepped distribution of laying；
The reference block is equipped at least two artificial defects, one of them is set to a laying, another is set to another
Laying；
There are at least two detecting domains, the detecting domains are corresponding with an artificial defect in the area to be detected；
In the step S2, treating detection zone progress ultrasound detection includes:
It treats detecting domains corresponding with the artificial defect in step S1 on detection zone and carries out ultrasound detection.
4. repairing quality evaluation method according to claim 3, which is characterized in that further comprising the steps of:
S3. multiple test points are selected in detecting domains corresponding with the artificial defect in step S1, under same sensitivity, same
Repeat step S2 on each test point in one detecting domains.
5. repairing quality evaluation method according to claim 3, which is characterized in that be equipped with artificial lack in the non-patch area
It falls into, the artificial defect in the non-patch area is adjacent with the glue film, and artificial defect is equipped in the laying area；
Underlapped region is staggered floor area in two neighboring laying；
In the repairing quality evaluation method:
If the test object of step S1 is the artificial defect in non-patch area, each test point in step S3 corresponds to be checked
Survey the staggered floor area in area；
If the test object of step S1 is the artificial defect in laying, each test point in step S3 corresponds to area to be detected
On laying.
6. repairing quality evaluation method according to claim 1, which is characterized in that artificial defect is sized to, if
The size of acceptable minimum defect in meter standard；
In the defects of the comparison measured waveform echo and reference waveform, time and wave amplitude that flaw echo occurs, comprising:
If the wave amplitude of the defects of measured waveform echo is greater than or equal to the wave amplitude of the defects of reference waveform echo, and surveys wave
The time consistency that flaw echo occurs in flaw echo occurs in shape time and reference waveform, then lack in area to be detected with artificial
Falling into corresponding depth, there are unacceptable defects.
7. repairing quality evaluation method described in any one of -6 according to claim 1, which is characterized in that the artificial defect
It is made of high ultrasonic attenuation materials.
8. repairing quality evaluation method described in any one of -6 according to claim 1, which is characterized in that artificial defect is by pre-
It is embedded in reference block, the metal with release agent coating generates.
9. repairing quality evaluation method described in any one of -6 according to claim 1, which is characterized in that the step S1 and
In the step S2, used detection frequency is 1.0MHz-20MHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810162980.3A CN110196278A (en) | 2018-02-26 | 2018-02-26 | A kind of repairing quality evaluation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810162980.3A CN110196278A (en) | 2018-02-26 | 2018-02-26 | A kind of repairing quality evaluation method |
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| CN112630308A (en) * | 2020-12-17 | 2021-04-09 | 中航复合材料有限责任公司 | Test block for ultrasonic detection after composite material repair |
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