CN113640149B - Composite material in-situ shear loading equipment suitable for synchrotron radiation CT - Google Patents
Composite material in-situ shear loading equipment suitable for synchrotron radiation CT Download PDFInfo
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- CN113640149B CN113640149B CN202111004245.8A CN202111004245A CN113640149B CN 113640149 B CN113640149 B CN 113640149B CN 202111004245 A CN202111004245 A CN 202111004245A CN 113640149 B CN113640149 B CN 113640149B
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- shell
- clamp
- extrusion piece
- loading
- synchrotron radiation
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- 238000011065 in-situ storage Methods 0.000 title claims abstract description 27
- 239000002131 composite material Substances 0.000 title claims abstract description 22
- 230000005469 synchrotron radiation Effects 0.000 title claims abstract description 21
- 238000001125 extrusion Methods 0.000 claims abstract description 42
- 230000005855 radiation Effects 0.000 claims abstract description 10
- 238000010008 shearing Methods 0.000 claims abstract description 4
- 238000004806 packaging method and process Methods 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 10
- 238000003384 imaging method Methods 0.000 claims description 3
- 229910000733 Li alloy Inorganic materials 0.000 claims description 2
- 239000001989 lithium alloy Substances 0.000 claims description 2
- GCICAPWZNUIIDV-UHFFFAOYSA-N lithium magnesium Chemical compound [Li].[Mg] GCICAPWZNUIIDV-UHFFFAOYSA-N 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- 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
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
-
- 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
- G01N3/02—Details
- G01N3/04—Chucks
-
- 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
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
-
- 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
- G01N2203/0025—Shearing
-
- 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
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
-
- 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
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/0641—Indicating or recording means; Sensing means using optical, X-ray, ultraviolet, infrared or similar detectors
- G01N2203/0647—Image analysis
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Particle Accelerators (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
The invention discloses composite material in-situ shear loading equipment suitable for synchrotron radiation CT, which comprises a loading module, a light-transmitting radiation module and a packaging module, wherein: the loading module comprises a screw, an upper extrusion piece, a lower extrusion piece, a connecting arm and a parallel shaft; the light-transmitting radiation module comprises an upper shell, a middle shell and a lower shell; the clamping module comprises an upper clamp, a lower clamp and a sliding block; the screw rod longitudinally penetrates through the upper extrusion piece and the lower extrusion piece from top to bottom in sequence; the upper shell, the middle shell and the lower shell are sequentially connected from top to bottom longitudinally; the sliding blocks are respectively arranged at corresponding grooves in the upper clamp and the lower clamp; the lower clamp is welded with the lower shell; the upper clamp, the connecting arm, the upper extrusion piece, the connecting arm and the upper shell are sequentially and transversely connected from left to right; the parallel shaft transversely penetrates through the through hole at the upper end of the upper clamp and the through hole at the upper end of the upper shell in sequence. The invention can apply pure shearing load and make up the blank of in-situ loading equipment in the field.
Description
Technical Field
The invention belongs to the field of in-situ loading equipment, and relates to in-situ shear loading equipment for a composite material suitable for synchrotron radiation CT.
Background
The industrial application, simulation and design of composite materials, particularly three-dimensional woven composite materials, requires accurate knowledge of the damage evolution process of the composite material. The main methods adopted by the current scholars are microscope, scanning electron microscope, acoustic emission, thermal infrared imager, DIC, CT and the like. The forefront and most direct method is an in-situ test method based on CT. However, the current in-situ loading equipment aims at simple tensile load and compression load, and is blank for in-situ test under the action of shear load.
Disclosure of Invention
In order to make up for the blank of in-situ loading equipment in the field of shear load, the invention provides composite material in-situ shear loading equipment suitable for synchrotron radiation CT. The device can apply stable shearing load to the test piece, and simultaneously is matched with synchronous radiation equipment to rotate on the platform, and the middle shell part where the test piece is located can transmit most X rays, so that the CT can form clear damage evolution imaging.
The invention aims at realizing the following technical scheme:
the utility model provides a combined material normal position shear loading equipment suitable for synchrotron radiation CT, includes loading module, printing opacity radiation module and encapsulation module, wherein:
the loading module comprises a screw, an upper extrusion piece, a lower extrusion piece, a connecting arm and a parallel shaft;
the light-transmitting radiation module comprises an upper shell, a middle shell and a lower shell;
the clamping module comprises an upper clamp, a lower clamp and a sliding block;
the screw rod longitudinally penetrates through the upper extrusion piece and the lower extrusion piece from top to bottom in sequence;
the upper shell, the middle shell and the lower shell are sequentially connected from top to bottom longitudinally;
the lower end of the upper clamp and the upper end of the lower clamp are respectively provided with a groove, and the sliding blocks are respectively arranged at the corresponding grooves in the upper clamp and the lower clamp;
the center positions of the upper clamp and the lower clamp are positioned between the middle shell, and the middle shell is arranged at the center position of the equipment;
the lower clamp is connected with the lower shell in a welding way, and is aligned with the upper clamp in the longitudinal direction after being assembled;
the upper extrusion piece and the lower extrusion piece are respectively connected with two pairs of four connecting arms, and the upper clamp, the connecting arms, the upper extrusion piece, the connecting arms and the upper shell are sequentially and transversely connected from left to right;
the upper end of the upper clamp and the upper end of the upper shell are respectively provided with a through hole, and the parallel shaft transversely penetrates through the through holes at the upper end of the upper clamp and the through holes at the upper end of the upper shell in sequence.
Compared with the prior art, the invention has the following advantages:
1. the in-situ loading equipment on the market can only pull and press the load, but the invention can apply pure shear load, and makes up the blank of the in-situ loading equipment in the field;
2. the middle shell is made of a material with small light absorptivity, is uniform and symmetrical, and can ensure clear and complete imaging;
3. the device has light weight and small volume, and is suitable for most CT devices.
Drawings
FIG. 1 is an overall oblique biaxial blast diagram of a composite material in-situ shear loading device suitable for synchrotron radiation CT;
FIG. 2 is a front cut-away view of a composite in situ shear loading apparatus suitable for synchrotron radiation CT;
FIG. 3 is an overall top view of a composite in situ shear loading apparatus suitable for synchrotron radiation CT;
FIG. 4 is an overall front view of a composite in situ shear loading apparatus suitable for synchrotron radiation CT;
FIG. 5 is an overall right side view of a composite in situ shear loading apparatus suitable for synchrotron radiation CT;
in the figure: 1: an upper housing; 2: an intermediate housing; 3: a lower housing; 4: a screw; 5: a connecting arm; 6: an upper extrusion; 7: a lower extrusion; 8: a clamp is arranged; 9: a lower clamp; 10: a slide block; 11: parallel axes.
Detailed Description
The following description of the present invention is provided with reference to the accompanying drawings, but is not limited to the following description, and any modifications or equivalent substitutions of the present invention should be included in the scope of the present invention without departing from the spirit and scope of the present invention.
It should be noted that, for convenience of description, the terms "upper", "lower", "inner", "outer", "front", "rear", "bottom", "top", etc. of the present invention are based on the coordinate system of the shear loading device provided by the present invention, that is, the front side of the center of the device body is "front", and the left side of the center of the device body is "left", with respect to the center of the device body; the words "vertical" and "longitudinal" designate directions, i.e., the front-to-back direction of the apparatus is referred to as the longitudinal direction, the left-to-right direction is referred to as the transverse direction, and the up-and-down direction is referred to as the vertical direction.
The invention provides in-situ shear loading equipment for composite materials suitable for synchrotron radiation CT, which is shown in figures 1 to 5 and comprises a loading module, a light-transmitting radiation module and a packaging module, wherein:
the loading module comprises a screw 4, an upper extrusion piece 6, a lower extrusion piece 7, a connecting arm 5 and a parallel shaft 11;
the light-transmitting radiation module comprises an upper shell 1, a middle shell 2 and a lower shell 3;
the clamping module comprises an upper clamp 8, a lower clamp 9 and a sliding block 10;
the upper extrusion piece 6 and the right wing plate of the upper shell 1 are arranged in parallel and opposite;
the screw 4 and the lower extrusion piece 7 are respectively Tr12 threads, and a bearing is arranged between the screw 4 and the upper extrusion piece 6;
the upper shell 1, the middle shell 2 and the lower shell 3 are sequentially arranged longitudinally from top to bottom, and the upper shell 1, the middle shell 2 and the lower shell 3 are connected through flanges;
the intermediate shell 2 is made of magnesium-lithium alloy, and has good radiation-transmitting performance;
the upper housing 1 is connected with a connecting piece in the loading module;
the upper clamp 8 is connected with a connecting piece in the loading module through a bolt;
the lower clamp 9 is welded with the lower shell 3 and is aligned with the upper clamp 8 in the longitudinal direction after being assembled;
the sliding block 10 is connected with the upper clamp 8 and the lower clamp 9, and the sliding block 10 is arranged at grooves in the upper clamp 8 and the lower clamp 9;
the middle shell 2 is arranged at the center of the equipment;
the center positions of the upper clamp 8 and the lower clamp 9 are positioned between the middle shell 2 and are used for enabling the center position of a test piece to be loaded to be in a state of being observed through a synchronous radiation CT device;
the four pairs of connecting arms 5 are eight, and the eight connecting arms are installed in parallel and are respectively connected with the upper extrusion part 6, the lower extrusion part 7, the upper shell 1 and the upper clamp 8;
the upper extrusion piece 6 and the lower extrusion piece 7 are respectively connected with two pairs of connecting arms 5, and the upper clamp 8, the connecting arms 5, the upper extrusion piece 6, the connecting arms 5 and the upper shell 1 are sequentially connected from left to right in a transverse direction;
the upper end of the upper clamp 8 and the upper end of the upper shell 1 are respectively provided with a through hole, and a parallel shaft 11 transversely penetrates through the through holes at the upper end of the upper clamp 8 and the through holes at the upper end of the upper shell 1 in sequence, so that the upper clamp 8 is ensured to horizontally move in the loading process;
the lower clamps 9 are welded with the lower shell 3, and the part of the loaded test piece between the lower clamps 9 does not move in the loading process;
the screw 4 longitudinally penetrates through the through hole of the upper extrusion piece 6 and the threaded hole of the lower extrusion piece 7 from top to bottom in sequence, when torque is applied to the screw 4, the upper extrusion piece 6 and the lower extrusion piece 7 are driven to move in opposite directions, the four pairs of connecting arms 5 are driven to rotate, the upper clamp 8 is driven to move horizontally, and the part of the loading test piece between the upper clamps 8 moves horizontally in the loading process.
After the installation is completed according to the process, the equipment is fixed on the turntable, torque can be applied to the screw rod, the upper extrusion piece and the lower extrusion piece are driven to move in opposite directions, the four pairs of connecting arms are driven to rotate, and the upper clamp is driven to horizontally move; in the loading process, the part of the loading test piece between the upper clamps moves horizontally, so that the center area of the test piece generates pure shearing load; at the moment, the turntable is started and emits X rays, and after a few rotation periods, clear test piece damage evolution images can be obtained.
In the loading process, the center area of the test piece to be loaded is subjected to pure shear load.
Claims (8)
1. The composite material in-situ shear loading equipment suitable for the synchrotron radiation CT is characterized by comprising a loading module, a light-transmitting radiation module, a clamping module and a packaging module, wherein:
the loading module comprises a screw, an upper extrusion piece, a lower extrusion piece, a connecting arm and a parallel shaft;
the light-transmitting radiation module comprises an upper shell, a middle shell and a lower shell;
the clamping module comprises an upper clamp, a lower clamp and a sliding block;
the screw rod longitudinally penetrates through the upper extrusion piece and the lower extrusion piece from top to bottom in sequence;
the upper shell, the middle shell and the lower shell are sequentially connected from top to bottom longitudinally;
the lower end of the upper clamp and the upper end of the lower clamp are respectively provided with a groove, and the sliding blocks are respectively arranged at the corresponding grooves in the upper clamp and the lower clamp;
the center positions of the upper clamp and the lower clamp are positioned between the middle shells;
the lower clamp is connected with the lower shell in a welding way, and is aligned with the upper clamp in the longitudinal direction after being assembled;
the upper extrusion piece and the lower extrusion piece are respectively connected with two pairs of four connecting arms, and the upper clamp, the connecting arms, the upper extrusion piece, the connecting arms and the upper shell are sequentially and transversely connected from left to right;
the upper end of the upper clamp and the upper end of the upper shell are respectively provided with a through hole, and the parallel shaft transversely and sequentially passes through the through holes at the upper end of the upper clamp and the through holes at the upper end of the upper shell;
the loading equipment is matched with the synchrotron radiation equipment simultaneously, the loading equipment rotates on the platform, the middle shell part where the test piece is located can penetrate most X rays, so that clear damage evolution imaging can be formed by CT, when torque is applied to the screw rod, the upper extrusion piece and the lower extrusion piece are driven to move in opposite directions, the four connecting arms are driven to rotate, the upper clamp is driven to horizontally move, the part of the test piece between the upper clamps in the loading process horizontally moves, and the center area of the test piece generates pure shearing load.
2. The composite in situ shear loading apparatus for synchrotron radiation CT of claim 1, wherein the upper extrusion and a right side wing plate of the upper shell are oppositely disposed in parallel.
3. The composite in-situ shear loading device for synchrotron radiation CT of claim 1, wherein the screw and the lower extrusion are Tr12 threads, and a bearing is provided between the screw and the upper extrusion.
4. The composite in situ shear loading apparatus for synchrotron radiation CT of claim 1, wherein the upper, middle and lower shells are connected by flanges therebetween.
5. Composite in-situ shear loading device suitable for synchrotron radiation CT according to claim 1, characterized in that the intermediate shell is made of magnesium-lithium alloy.
6. The composite in situ shear loading apparatus for synchrotron radiation CT of claim 1, wherein the intermediate shell is provided at a central location of the apparatus.
7. The composite in situ shear loading apparatus for synchrotron radiation CT of claim 1, wherein the upper housing is connected to a connector in a loading module.
8. The composite in-situ shear loading apparatus for synchrotron radiation CT of claim 1, wherein the upper clamp is bolted to a connector in the loading module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111004245.8A CN113640149B (en) | 2021-08-30 | 2021-08-30 | Composite material in-situ shear loading equipment suitable for synchrotron radiation CT |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111004245.8A CN113640149B (en) | 2021-08-30 | 2021-08-30 | Composite material in-situ shear loading equipment suitable for synchrotron radiation CT |
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| Publication Number | Publication Date |
|---|---|
| CN113640149A CN113640149A (en) | 2021-11-12 |
| CN113640149B true CN113640149B (en) | 2024-01-30 |
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| CN201464302U (en) * | 2009-08-05 | 2010-05-12 | 哈尔滨学院 | Torsion experiment device |
| KR100994424B1 (en) * | 2009-12-09 | 2010-11-16 | 배윤신 | Resonant column/ torsional shear equipment with great shear modulus |
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| CN113640149A (en) | 2021-11-12 |
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