CN106595999A - Composite material pore-filling tensile strength design allowable value test method based on AML method - Google Patents
Composite material pore-filling tensile strength design allowable value test method based on AML method Download PDFInfo
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Abstract
The invention relates to a composite material pore-filling tensile strength design allowable value test method based on AML method. The method comprises stages that 1, through building block type test component level tests, a process batch influence factor CBB, a hygrothermal environment influence factor CEN, a tightening torque influence factor CTORQ, a hole diameter influence factor CD, a width-diameter ratio influence factor CW/D, a countersunk head influence factor CCSK and a pore-filling tensile strength basic value SBASE are acquired; and 2, pore-filling tensile strength design allowable values SFHT-ALL are acquired through formulas. Compared with a test method in the prior art, the method is advantaged in that the quantity of test parts is reduced, a test period is shortened, test cost is reduced, more influence factors are considered, the acquired pore-filling tensile strength design allowable values are closer to actual engineering technology characteristics, and the method is a new feasible test method for acquiring pore-filling tensile strength design allowable values of military and civil aircraft composite material structures.
Description
Technical field
The invention belongs to Aircraft Composite Structure test, design and application, more particularly to it is a kind of based on AML methods
Composite filling perforation tensile strength Design permissible value test method.
Background technology
The existing test method for obtaining composite filling perforation tensile strength Design permissible value adopts blanket curve method, blanket mostly
In formula curve method, laying angle includes 0 °, -45 ° ,+45 °, 90 °, and laying percentage ratio number is not less than 10%.By blanket curve side
Method obtains the test of composite filling perforation tensile strength Design permissible value and seeks to Fig. 1 dash areas according to test standard and rule
Model is filled fully as far as possible.
AML (Angle Minus Longitudinal) method is used in symmetrically, in a balanced way in laminate, laminate bag
0 ° is included, 90 ° and ± 45° angle degree layer, and each angle layer percentage is not less than 10%.AML is by angle layer (± 45 °) percentage
Draw than deducting longitudinal fiber layer (0 °).When laminate is unbalanced, AML is by following formula tabular form：
So laminate has the angle layer or the longitudinal layer of high percentage of low percentage ratio, AML can be very low.AML reflections
It is that load of the laminate after defect periphery or fibre breakage redistributes ability, also reflects that defect stress all round is seriously
Number, Fig. 2 show：Angle layer percentage ratio is higher, and post-impact compression and filling perforation tensile strength are higher.
The content of the invention
The present invention is solution based on the composite filling perforation tensile strength Design permissible value test method purpose of AML methods
The certainly in the past composite filling perforation stretching design experiment number of packages amount obtained by test method is more, and test is complicated, and the test period is long, examination
Not comprehensive enough the engineering reality of consideration influence factor is tested, and one kind is provided to obtain composite filling perforation tensile strength Design permissible value
Advanced test method.
To reach above-mentioned purpose, the technical solution used in the present invention is：A kind of composite filling perforation based on AML methods
Tensile strength Design permissible value test method, including
First stage：Process batch factor of influence C is obtained by the test of building block system test element levelBB, hygrothermal environment affect
Factor CEN, screw-down torque factor of influence CTORQ, opening diameter factor of influence CD, width-diameter is than factor of influence CW/D, hole countersunk head
Factor of influence CCSKWith filling perforation tensile strength basic value SBASE；
Second stage：Filling perforation tensile strength Design permissible value S is obtained by equation belowFHT-ALL,
SFHT-ALL=SBASE*CBB*CEN*CD*CW/D*CTORQ*CCSK。
Further, in the first stage, testpieces is formulated for into the testpieces group of three kinds of AML values, forms the first testpieces
Group, the second testpieces group and the 3rd testpieces group, the AML values of the first testpieces group are -28, and the AML values of the second testpieces group are
0, the AML values of the 3rd testpieces group are 25, so as to obtain process batch factor of influence CBB, hygrothermal environment factor of influence CEN, tighten
Torque factor of influence CTORQ, opening diameter factor of influence CD, width-diameter is than factor of influence CW/D, hole countersunk head factor of influence CCSK
With filling perforation compressive strength basic value SBASE。
Further, obtain the process batch factor of influence CBBProcess be：
Using B reference values simplify sampling test matrix form, respectively from the first testpieces group, the second testpieces group, the 3rd
Testpieces group extracts 18 testpieces respectively；Per group adopts 3 batch prepregs, 2 cure cycles, totally 18 testpieces；
In the case of the conditions such as hygrothermal environment, geometric parameter, ply stacking-sequence are identical, the process batch is calculated by equation below
Factor of influence CBB,
σB reference values/RTD--- represent the B reference values of room temperature dry state state；
σAveragely/RTD--- represent the average failure strain of room temperature dry state state.
Further, the hygrothermal environment factor of influence CENAcquisition process be：
Same material batch, same solidification are obtained from the first testpieces group, the second testpieces group and the 3rd testpieces group
Technique, identical geometric parameter testpieces it is each 18, and be divided into 3 groups, battery of tests part carries out low temperature dry state CTD test, another
Battery of tests part carries out the test of room temperature dry state RTD, and last group of testpieces carries out high temperature hygrometric state ETW tests, damp and hot for obtaining
Environmental Factors CEN, the hygrothermal environment factor of influence CENObtained by equation below：
CEN=Si/SRTD
Si--- represent high temperature hygrometric state ETW or low temperature dry state CTD averagely fails strain；
SRTD--- represent room temperature dry state and averagely fail strain.
Further, the screw-down torque factor of influence CTORQAcquisition process be：
Same material batch, same solidification are obtained from the first testpieces group, the second testpieces group and the 3rd testpieces group
In technique, geometric parameter, only the different testpieces of screw-down torque is each 12, and is uniformly divided into 2 groups, and per group of testpieces is carried out
Room temperature dry state RTD is tested, and obtains the screw-down torque factor of influence C by equation belowTORQ：
CTORQ=(S100/S50)
S100--- represent the average compression failure strain of 100% screw-down torque testpieces；
S50--- represent the average compression failure strain of 50% screw-down torque testpieces.
Further, the opening diameter factor of influence CDAcquisition process be：
Same material batch, same solidification are obtained from the first testpieces group, the second testpieces group and the 3rd testpieces group
In technique, geometric parameter, only the different testpieces of opening diameter is each 36, and is divided into 6 groups, and per group of testpieces carries out room
Warm dry state RTD testpieces, and the opening diameter factor of influence C is obtained by equation belowD：
CD=(SD/S1/4)
SD--- represent the average compression failure strain of different opening diameter testpieces；
S1/4--- represent the average compression failure strain of a diameter of 1/4in testpieces.
Further, the width-diameter is than factor of influence CW/DAcquisition process be：
Same material batch, same solidification are obtained from the first testpieces group, the second testpieces group and the 3rd testpieces group
In technique, geometric parameter, only width-diameter is more each than different testpieces 36, and is divided into 6 groups, and per group of testpieces is carried out
Room temperature dry state RTD is tested, and obtains the width-diameter than factor of influence C by equation belowW/D：
CW/D=(SW/D/S5)
SW/D--- different in width-diameter is represented than the strain of testpieces average compression failure；
S5--- width-diameter ratio is represented as the average compression failure strain of 5 testpieces.
Further, the hole countersunk head factor of influence CCSKAcquisition process be：
Same material batch, same solidification are obtained from the first testpieces group, the second testpieces group and the 3rd testpieces group
In technique, geometric parameter, only the different testpieces of hole countersunk head percentage ratio is each 30, and is divided into 5 groups, and per group of testpieces enters
Row room temperature dry state RTD is tested, and obtains hole countersunk head factor of influence C by equation belowCSK：
CCSK=(SCSK/S0)
SCSK--- represent the average compression failure strain of testpieces of different holes countersunk head percent depth；
S0--- represent the average compression failure strain of non-counter sink testpieces.
Further, the filling perforation compressive strength basic value SBASEAcquisition process be：
Same material batch, same solidification are obtained from the first testpieces group, the second testpieces group and the 3rd testpieces group
Technique, identical geometric parameter testpieces it is each 6, and carry out low temperature dry state CTD test, room temperature dry state RTD test and height it is warm and humid
State ETW is tested, for obtaining filling perforation compressive strength basic value SBASE。
The composite filling perforation tensile strength Design permissible value test method based on AML methods of the present invention and test in the past
Method is compared, and less with testpieces quantity, the test period is shorter, and test funds are less, it is considered to which factor of influence more comprehensively, is obtained
Filling perforation stretches Design permissible value closer to the actual technical characterstic of engineering.The invention is that the acquisition of military and civilian's machine composite structure is filled out
Hole-pull strength Design permissible value provides new feasible test method.
Description of the drawings
During accompanying drawing herein is merged in description and the part of this specification is constituted, show the enforcement for meeting the present invention
Example, and be used for explaining the principle of the present invention together with description.
Fig. 1 is the typical blanket curve synoptic diagram in the structure design of prior art.
Typical AML curve synoptic diagrams (carbon fiber) of the Fig. 2 for prior art.
Fig. 3 is the process batch factor of influence and AML relation curve schematic diagrams of the present invention.
Fig. 4 is the hygrothermal environment factor of influence and AML relation curve schematic diagrams of the present invention.
Fig. 5 is the screw-down torque factor of influence and AML relation curve schematic diagrams of the present invention.
Fig. 6 is the opening diameter factor of influence and AML relation curve schematic diagrams of the present invention.
Fig. 7 is the width-diameter of the present invention than factor of influence and AML relation curve schematic diagrams.
Fig. 8 is the hole countersunk head factor of influence and countersunk head percent depth relation curve schematic diagram of the present invention.
Fig. 9 is the filling perforation tensile strength basic value and AML relation schematic diagrams of the present invention.
Figure 10 is filling perforation tension test part typical case's physical dimension schematic diagram of the present invention.
Figure 11 is the schematic flow sheet of the present invention.
Specific embodiment
To make purpose, technical scheme and the advantage of present invention enforcement clearer, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from start to finish or class
As label represent same or similar element or the element with same or like function.Described embodiment is the present invention
A part of embodiment, rather than the embodiment of whole.It is exemplary type below with reference to the embodiment of Description of Drawings, it is intended to use
It is of the invention in explaining, and be not considered as limiting the invention.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment obtained under the premise of the work of creation type is not made by member, belongs to the scope of protection of the invention.Under
Face combines accompanying drawing and embodiments of the invention is described in detail.
In describing the invention, it is to be understood that term " " center ", " longitudinal direction ", " horizontal ", "front", "rear",
The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " is based on accompanying drawing institute
The orientation for showing or position relationship, are for only for ease of the description present invention and simplify description, rather than indicate or imply the dress of indication
Put or element with specific orientation, with specific azimuth configuration and operation, therefore it is not intended that must be protected to the present invention
The restriction of scope.
The composite filling perforation tensile strength Design permissible value test method based on AML methods of the present invention, as one kind
The test method of composite filling perforation tensile strength Design permissible value is obtained, is launched with reference to the test of building block system test element level, examination
Testing fixture and test matrix is carried out by ASTM6742/D6742, and testpieces size is " 1.25in × 12in ".Obtain filling perforation stretching
Design permissible value SFHT-ALLProcess be divided into two stages (as shown in figure 11)：
First stage：The testpieces that testpieces is formulated for three kinds of AML values is formed into the first testpieces group, the second testpieces group
With the 3rd testpieces group, the AML values respectively -28,0 and 25 of testpieces group, obtained to composite filling perforation tensile strength afterwards
Design permissible value has the process batch factor of influence C of appreciable impactBB, hygrothermal environment factor of influence CEN, screw-down torque affect because
Sub- CTORQ, opening diameter factor of influence CD, width-diameter is than factor of influence CW/D, hole countersunk head factor of influence CCSKIt is strong with filling perforation stretching
Degree basic value SBASE, every kind of AML values are required to do following tests.
1) process batch factor of influence
B reference values are taken to simplify sampling (B18) test matrix form, respectively from the first testpieces group, the second examination testpieces
Group and the 3rd testpieces group extract 18 testpieces respectively；Testpieces adopts 3 batch prepregs, 2 cure cycles altogether, and totally 18
Individual testpieces.It is (nail diameter, width-diameter ratio, non-heavy in hygrothermal environment (being tested using room temperature dry conditions), geometric parameter
Head), the condition such as ply stacking-sequence it is identical in the case of, process batch factor of influence CBBRepresented with below equation：
σB reference values/RTDRepresent 3 batches of room temperature dry state state, the B reference values of 2 curing process；
σAveragely/RTDRepresent the average failure strain of room temperature dry state state.
Process batch factor of influence C in the present embodimentBBFig. 3 is referred to the relation of AML.
2) hygrothermal environment factor of influence
Same material batch, same solidification are obtained from the first testpieces group, the second testpieces group and the 3rd testpieces group
Technique, identical geometric parameter (include nail diameter, width-diameter ratio, non-countersunk head) testpieces it is each 18, and be divided into 3 groups,
Battery of tests part carries out the test of low temperature dry state CTD, another group of testpieces and carries out the test of room temperature dry state RTD, and last group examination
Testing part carries out high temperature hygrometric state ETW tests, for obtaining hygrothermal environment factor of influence CEN, hygrothermal environment factor of influence CENBy such as
Lower formula is obtained：
CEN=Si/SRTD
SiRepresent high temperature hygrometric state ETW or low temperature dry state CTD averagely fails strain；
SRTDRepresent room temperature dry state averagely to fail strain.
Hygrothermal environment factor of influence C in the present embodimentENFig. 4 is referred to the relation of AML, C when obtaining Design permissible valueEN
=Min (Si/SRTD)。
3) screw-down torque factor of influence
Same material batch, same solidification are obtained from the first testpieces group, the second testpieces group and the 3rd testpieces group
In technique, geometric parameter, only the different testpieces of screw-down torque is each 12, and is uniformly divided into 2 groups, and per group of testpieces is carried out
Room temperature dry state RTD is tested, and obtains the screw-down torque factor of influence C by equation belowTORQ：
CTORQ=(S100/S50)
S100--- represent the average compression failure strain of 100% screw-down torque testpieces；
S50--- represent the average compression failure strain of 50% screw-down torque testpieces and (according to specification CMH-17G, do filling perforation pressure
During contracting test, 50%) screw-down torque takes.
Screw-down torque factor of influence C in the present embodimentTORQFig. 5 is referred to the relation of AML.Obtain Design permissible value when with
The strain of 50% screw-down torque average compression failure is basic value, the average compression failure strain of 100% screw-down torque testpieces with
The average compression failure strain facies of 50% screw-down torque compares to obtain screw-down torque factor of influence CTORQ。
4) opening diameter factor of influence
Same material batch, same solidification are obtained from the first testpieces group, the second testpieces group and the 3rd testpieces group
In technique, geometric parameter only opening diameter difference (other specification such as width-diameter ratio, non-countersunk head etc. is identical) testpieces each 36
Part, and 6 groups are divided into, per group of testpieces carries out the test of room temperature dry state RTD, for obtaining opening diameter factor of influence CD,
Obtain opening diameter factor of influence CDFormula be：
CD=(SD/S1/4)
SDRepresent the average compression failure strain of a diameter of 5/32in, 3/16in, 5/16in, 3/8in, 1/2in testpieces；
S1/4Represent the average compression failure strain of a diameter of 1/4in testpieces.
Opening diameter factor of influence C in the present embodimentDFig. 6 is referred to the relation of AML.With 1/ during acquisition Design permissible value
The average compression failure strain of 4in diameter test parts is basic value, the average compression failure strain of other diameter test parts and 1/4in
The average compression failure strain facies ratio of diameter test part draws opening diameter factor of influence CD。
5) width-diameter compares factor of influence
Same material batch, same solidification are obtained from the first testpieces group, the second testpieces group and the 3rd testpieces group
Technique, geometric parameter only width-diameter is more each by 36 than the testpieces of different (other specification such as opening diameter, non-countersunk head etc. is identical)
Part, and be divided into 6 groups, per group of testpieces carries out room temperature dry state RTD to be tested and compares factor of influence for obtaining out width-diameter
CW/D, width-diameter is obtained out than factor of influence CW/DFormula be：
CW/D=(SW/D/S5)
SW/DWidth-diameter ratio is represented as the average compression failure strain of 3,4,6 testpieces；
S5Width-diameter ratio is represented as the average compression failure strain of 5 testpieces.
Width-diameter in the present embodiment is than factor of influence CW/DFig. 7 is referred to the relation of AML.When obtaining Design permissible value
Strain as basic value by the average compression failure of 5 testpieces of width-diameter ratio, other width-diameters are averagely compressed than testpieces
Failure strain draws width-diameter than factor of influence C for the average compression failure strain facies ratio of 5 testpieces with width-diameter ratioW/D。
6) hole countersunk head factor of influence
Same material batch, same solidification are obtained from the first testpieces group, the second testpieces group and the 3rd testpieces group
The testpieces of technique, geometric parameter only hole countersunk head percentage ratio different (other specification such as opening diameter, width-diameter ratio etc. is identical)
Each 30, and 5 groups are divided into, per group of testpieces carries out room temperature dry state RTD and tests for obtaining hole countersunk head factor of influence
CCSK, obtain hole countersunk head factor of influence CCSKFormula be：
CCSK=(SCSK/S0)
SCSKRepresent the average compression failure of 20%, 40%, 60%, 80% testpieces of hole countersunk head depth and strain (countersunk head depth hundred
Divide than being countersunk head depth/laminate thickness)；
S0Represent the average compression failure strain of non-counter sink testpieces.
Hole countersunk head factor of influence C in the present embodimentCSKFig. 8 is referred to the relation of hole countersunk head percentage ratio.Obtain design allowable
Strain as basic value by the average compression failure of non-counter sink testpieces of hole countersunk head during value, other different countersunk head depth testpieces
Average compression failure strain and the average compression failure strain facies ratio of non-counter sink testpieces must portal countersunk head factor of influence CCSK。
7) filling perforation tensile strength basic value SBASE
Same material batch, same solidification are obtained from the first testpieces group, the second testpieces group and the 3rd testpieces group
Technique, identical geometric parameter (include opening diameter, width-diameter ratio, non-countersunk head) testpieces it is each 6, and carry out low temperature and do
The test of state CTD, the test of room temperature dry state RTD and high temperature hygrometric state ETW are tested for obtaining filling perforation tensile strength basic value SBASE。
Due to obtaining composite filling perforation tensile strength Design permissible value SBASEWhen do not allow extrapolation, so obtain filling perforation
Tensile strength basic value SBASEWhen, testpieces of the AML less than -28 and AML more than 25 is also planned.Obtain filling perforation tensile strength base
This value SBASEWhen, testpieces basic configuration refers to table 1.
The filling perforation tensile strength basic value S of the present embodimentBASEFig. 9 is referred to the relation of AML.
1 testpieces basic configuration of table
| Project | Configuration |
| Statistical data | Meansigma methodss |
| Experimental enviroment | Room temperature dry state (RTD) |
| Diameter (in) | 1/4 |
| Thickness (in) | 0.18～0.26 |
| Width-diameter ratio | 5 |
| Screw-down torque | 50% |
| Hole | Non- countersunk head |
| AML | -35\-28\-10\0\10\25\45 |
Second stage：Filling perforation tensile strength Design permissible value S is obtained by equation belowFHT-ALL：
SFHT-ALL=SBASE*CBB*CEN*CD*CW/D*CTORQ*CCSK。
Table 2 below is according to obtained by testpieces (as shown in Figure 10) and summary formula and accompanying drawing in the present embodiment
AML be respectively -28,0 and 25 and screw-down torque 100%, aperture be 1/4in, width-diameter ratio be 5, countersunk head depth be 60%
Test of Laminate Composites filling perforation tensile strength Design permissible value.
2 filling perforation tensile strength Design permissible value of table
The test method Consideration of the present invention is comprehensively thorough, and test method is simple and practical, and the test method takes into full account
Process batch, hygrothermal environment, screw-down torque, opening diameter, width-diameter ratio, hole countersunk head are set to composite filling perforation stretching
The appreciable impact of meter allowable value, and by composite building block system single-stage test (component-level test) obtain all factors of influence with
Filling perforation tensile strength basic value.The test method of the present invention draws filling perforation tensile strength Design permissible value SFHT-ALLComputing formula
After 7 required factor curve figures, each AML value corresponds to unique filling perforation tensile strength Design permissible value.The present invention with
Test method was compared in the past, and less with testpieces quantity, the test period is shorter, and test funds are less, it is considered to which factor of influence is more
Comprehensively, obtained filling perforation stretches Design permissible value closer to the actual technical characterstic of engineering.The invention is tied for military and civilian's machine composite
Structure obtains filling perforation tensile strength Design permissible value and provides new feasible test method.
The above, the only optimum specific embodiment of the present invention, but protection scope of the present invention is not limited thereto,
Any those familiar with the art the invention discloses technical scope in, the change or replacement that can be readily occurred in,
Should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of the claim
Enclose and be defined.
Claims (9)
1. a kind of composite filling perforation tensile strength Design permissible value test method based on AML methods, it is characterised in that include
First stage：Process batch factor of influence C is obtained by the test of building block system test element levelBB, hygrothermal environment factor of influence
CEN, screw-down torque factor of influence CTORQ, opening diameter factor of influence CD, width-diameter is than factor of influence CW/D, hole countersunk head affect
Factor CCSKWith filling perforation tensile strength basic value SBASE；
Second stage：Filling perforation tensile strength Design permissible value S is obtained by equation belowFHT-ALL,
SFHT-ALL=SBASE*CBB*CEN*CD*CW/D*CTORQ*CCSK。
2. the composite filling perforation tensile strength Design permissible value test method based on AML methods according to claim 1,
Characterized in that, in the first stage, testpieces is formulated for into the testpieces group of three kinds of AML values, formed the first testpieces group, second
Testpieces group and the 3rd testpieces group, the AML values of the first testpieces group are -28, and the AML values of the second testpieces group are 0, the 3rd examination
The AML values for testing part group are 25, so as to obtain process batch factor of influence CBB, hygrothermal environment factor of influence CEN, screw-down torque affect
Factor CTORQ, opening diameter factor of influence CD, width-diameter is than factor of influence CW/D, hole countersunk head factor of influence CCSKWith filling perforation pressure
Contracting intensity basic value SBASE。
3. the composite filling perforation tensile strength Design permissible value test method based on AML methods according to claim 2,
Characterized in that, obtaining the process batch factor of influence CBBProcess be：
Sampling test matrix form is simplified using B reference values, respectively from the first testpieces group, the second testpieces group, the 3rd test
Part group extracts 18 testpieces respectively；Per group adopts 3 batch prepregs, 2 cure cycles, totally 18 testpieces；Wet
In the case of the conditions such as thermal environment, geometric parameter, ply stacking-sequence are identical, calculating the process batch by equation below affects
Factor CBB,
σB reference values/RTD--- represent the B reference values of room temperature dry state state；
σAveragely/RTD--- represent the average failure strain of room temperature dry state state.
4. the composite filling perforation compressive strength Design permissible value test method based on AML methods according to claim 3,
Characterized in that, the hygrothermal environment factor of influence CENAcquisition process be：
From in the first testpieces group, the second testpieces group and the 3rd testpieces group obtain same material batch, same curing process,
The testpieces of identical geometric parameter is each 18, and is divided into 3 groups, and battery of tests part carries out the test of low temperature dry state CTD, another group of examination
Testing part carries out the test of room temperature dry state RTD, and last group of testpieces carries out high temperature hygrometric state ETW tests, for obtaining hygrothermal environment shadow
Ring factor CEN, the hygrothermal environment factor of influence CENObtained by equation below：
CEN=Si/SRTD
Si--- represent high temperature hygrometric state ETW or low temperature dry state CTD averagely fails strain；
SRTD--- represent room temperature dry state and averagely fail strain.
5. the composite filling perforation compressive strength Design permissible value test method based on AML methods according to claim 4,
Characterized in that, the screw-down torque factor of influence CTORQAcquisition process be：
From in the first testpieces group, the second testpieces group and the 3rd testpieces group obtain same material batch, same curing process,
In geometric parameter, only the different testpieces of screw-down torque is each 12, and is uniformly divided into 2 groups, and per group of testpieces carries out room temperature and does
State RTD is tested, and obtains the screw-down torque factor of influence C by equation belowTORQ：
CTORQ=(S100/S50)
S100--- represent the average compression failure strain of 100% screw-down torque testpieces；
S50--- represent the average compression failure strain of 50% screw-down torque testpieces.
6. the composite filling perforation compressive strength Design permissible value test method based on AML methods according to claim 5,
Characterized in that, the opening diameter factor of influence CDAcquisition process be：
From in the first testpieces group, the second testpieces group and the 3rd testpieces group obtain same material batch, same curing process,
In geometric parameter, only the different testpieces of opening diameter is each 36, and is divided into 6 groups, and per group of testpieces carries out room temperature dry state
RTD testpieces, and the opening diameter factor of influence C is obtained by equation belowD：
CD=(SD/S1/4)
SD--- represent the average compression failure strain of different opening diameter testpieces；
S1/4--- represent the average compression failure strain of a diameter of 1/4in testpieces.
7. the composite filling perforation compressive strength Design permissible value test method based on AML methods according to claim 6,
Characterized in that, width-the diameter is than factor of influence CW/DAcquisition process be：
From in the first testpieces group, the second testpieces group and the 3rd testpieces group obtain same material batch, same curing process,
In geometric parameter, only width-diameter is more each than different testpieces 36, and is divided into 6 groups, and per group of testpieces carries out room temperature
Dry state RTD is tested, and obtains the width-diameter than factor of influence C by equation belowW/D：
CW/D=(SW/D/S5)
SW/D--- different in width-diameter is represented than the strain of testpieces average compression failure；
S5--- width-diameter ratio is represented as the average compression failure strain of 5 testpieces.
8. the composite filling perforation compressive strength Design permissible value test method based on AML methods according to claim 7,
Characterized in that, the hole countersunk head factor of influence CCSKAcquisition process be：
From in the first testpieces group, the second testpieces group and the 3rd testpieces group obtain same material batch, same curing process,
In geometric parameter, only the different testpieces of hole countersunk head percentage ratio is each 30, and is divided into 5 groups, and per group of testpieces carries out room temperature
Dry state RTD is tested, and obtains hole countersunk head factor of influence C by equation belowCSK：
CCSK=(SCSK/S0)
SCSK--- represent the average compression failure strain of testpieces of different holes countersunk head percent depth；
S0--- represent the average compression failure strain of non-counter sink testpieces.
9. the composite filling perforation compressive strength Design permissible value test method based on AML methods according to claim 8,
Characterized in that, the filling perforation compressive strength basic value SBASEAcquisition process be：
From in the first testpieces group, the second testpieces group and the 3rd testpieces group obtain same material batch, same curing process,
The testpieces of identical geometric parameter is each 6, and carries out the test of low temperature dry state CTD, the test of room temperature dry state RTD and high temperature hygrometric state ETW
Test, for obtaining filling perforation compressive strength basic value SBASE。
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