CN113640149A - Composite material in-situ shearing loading equipment suitable for synchrotron radiation CT - Google Patents
Composite material in-situ shearing loading equipment suitable for synchrotron radiation CT Download PDFInfo
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- CN113640149A CN113640149A CN202111004245.8A CN202111004245A CN113640149A CN 113640149 A CN113640149 A CN 113640149A CN 202111004245 A CN202111004245 A CN 202111004245A CN 113640149 A CN113640149 A CN 113640149A
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- clamp
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- synchrotron radiation
- composite
- situ
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- 238000011065 in-situ storage Methods 0.000 title claims abstract description 28
- 239000002131 composite material Substances 0.000 title claims abstract description 23
- 230000005469 synchrotron radiation Effects 0.000 title claims abstract description 22
- 238000010008 shearing Methods 0.000 title abstract description 7
- 238000001125 extrusion Methods 0.000 claims abstract description 36
- 230000005855 radiation Effects 0.000 claims abstract description 9
- 238000003466 welding Methods 0.000 claims abstract description 5
- 229910000733 Li alloy Inorganic materials 0.000 claims description 2
- 238000005538 encapsulation Methods 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
- 238000004806 packaging method and process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/24—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
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- 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 shearing 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 longitudinally connected in sequence from top to bottom; the sliding blocks are respectively arranged at corresponding grooves in the upper clamp and the lower clamp; the lower clamp is connected with the lower shell in a welding way; the upper clamp, the connecting arm, the upper extrusion piece, the connecting arm and the upper shell are sequentially connected from left to right in a transverse mode; 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 makes up the blank of the in-situ loading equipment in the field.
Description
Technical Field
The invention belongs to the field of in-situ loading equipment, and relates to composite material in-situ shearing loading equipment suitable for synchrotron radiation CT.
Background
Industrial application and simulation and design of composite materials, particularly three-dimensional woven composite materials, require accurate mastering of the damage evolution process of the composite materials. The main methods currently used by scholars are microscopes, scanning electron microscopes, acoustic emission, thermal infrared imagers, DIC's, CT's, etc. Among these, the leading edge, most direct method is the CT-based in situ test method. However, the existing in-situ loading equipment is blank for simple tensile and compressive loads and in-situ tests under the action of shear loads.
Disclosure of Invention
In order to make up the blank of the in-situ loading equipment in the field of shear load, the invention provides the composite material in-situ shear loading equipment suitable for synchrotron radiation CT. This equipment can apply stable shearing load to the test piece, and cooperation synchrotron radiation equipment rotates on the platform simultaneously, and the middle shell part at test piece place can see through most X ray, makes CT can form clear damage evolution formation of image.
The purpose of the invention is realized by the following technical scheme:
a composite in-situ shear loading apparatus suitable for synchrotron radiation CT, comprising a loading module, a transparent radiation module and an encapsulation module, wherein:
the loading module comprises a screw, an upper extrusion part, a lower extrusion part, 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 part and the lower extrusion part from top to bottom in sequence;
the upper shell, the middle shell and the lower shell are longitudinally connected in sequence from top to bottom;
grooves are formed in the lower end of the upper clamp and the upper end of the lower clamp, and the sliding blocks are respectively arranged in 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, and the middle shells are arranged at the center positions of the equipment;
the lower clamp is connected with the lower shell in a welding mode and is aligned with the upper clamp in the longitudinal direction after being assembled;
the upper extrusion part and the lower extrusion part are respectively connected with two pairs of four connecting arms, and the upper clamp, the connecting arms, the upper extrusion part, the connecting arms and the upper shell are sequentially connected from left to right;
through holes are formed in the upper end of the upper clamp and the upper end of the upper shell, and parallel shafts transversely penetrate through the through holes in the upper end of the upper clamp and the through holes in 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 load, but the invention can apply pure shear load, which makes up the blank of the in-situ loading equipment in the field;
2. the middle shell is made of a material with low light absorption rate, is uniform and symmetrical, and can ensure that the imaging is clear and complete;
3. the weight is light, the volume is small, and the device is suitable for most CT devices.
Drawings
FIG. 1 is an overall oblique biaxial explosive view of a composite in-situ shear loading apparatus suitable for synchrotron radiation CT;
FIG. 2 is an overall 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: a middle housing; 3: a lower housing; 4: a screw; 5: a connecting arm; 6: an upper extrusion member; 7: a lower extrusion; 8: an upper clamp; 9: a lower clamp; 10: a slider; 11: parallel to the axis.
Detailed Description
The technical solution of the present invention is further described below with reference to the accompanying drawings, but not limited thereto, and any modification or equivalent replacement of the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention shall be covered by the protection scope of the present invention.
For convenience of description, the terms "upper", "lower", "inner", "outer", "front", "rear", "bottom", "top", and the like, of the present invention, are all based on the coordinate system of the shear loading device provided by the present invention, that is, relative to the center of the device body, 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"; the words "vertical" and "longitudinal" indicate orientations such that the front-to-back direction of the device is the longitudinal direction, the left-to-right direction is the transverse direction, and the up-to-down direction is the vertical direction.
The invention provides a composite material in-situ shearing loading device suitable for synchrotron radiation CT, as shown in figures 1 to 5, the device comprises a loading module, a light-transmitting radiation module and a packaging module, wherein:
the loading module comprises a screw rod 4, an upper extrusion part 6, a lower extrusion part 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 oppositely arranged in parallel;
the screw rod 4 and the lower extrusion part 7 are both provided with Tr12 threads, and a bearing is arranged between the screw rod 4 and the upper extrusion part 6;
the upper shell 1, the middle shell 2 and the lower shell 3 are sequentially arranged from top to bottom in a longitudinal mode, and the upper shell 1, the middle shell 2 and the lower shell 3 are connected through flanges between the upper shell 1, the middle shell 2 and the lower shell 3;
the middle shell 2 is made of magnesium-lithium alloy and has good radiation permeability;
the upper shell 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 connected with the lower shell 3 in a welding mode 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 a groove 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 shells 2, and the center positions of the test pieces to be loaded can be observed through synchrotron radiation CT equipment;
the four pairs of the connecting arms 5 are eight, and the eight connecting arms are arranged in parallel and are respectively connected with the upper extrusion piece 6, the lower extrusion piece 7, the upper shell 1 and the upper clamp 8;
the upper extrusion part 6 and the lower extrusion part 7 are respectively connected with two pairs of connecting arms 5, and the upper clamp 8, the connecting arms 5, the upper extrusion part 6, the connecting arms 5 and the upper shell 1 are sequentially connected from left to right in a transverse mode;
through holes are formed in the upper end of the upper clamp 8 and the upper end of the upper shell 1, and a parallel shaft 11 transversely penetrates through the through hole in the upper end of the upper clamp 8 and the through hole in the upper end of the upper shell 1 in sequence to ensure that the upper clamp 8 moves horizontally in the loading process;
the lower clamp 9 is connected with the lower shell 3 in a welding mode, and the part of the loaded test piece between the lower clamp 9 does not move in the loading process;
the screw rod 4 vertically passes the through-hole of last extruded article 6, the screw hole of extruded article 7 down in proper order from top to bottom, when applying the moment of torsion to screw rod 4, can drive extruded article 6 and extruded article 7 relative motion down, drives four pairs of linking arms 5 rotations, drives 8 horizontal motion of anchor clamps, and the part of loading test piece between last anchor clamps 8 takes place horizontal motion in loading process.
After the installation is completed according to the process, the equipment is fixed on the rotary table, and can apply torque to the screw rod, so that the upper extrusion piece and the lower extrusion piece are driven to move in opposite directions, four pairs of connecting arms are driven to rotate, and the upper clamp is driven to move horizontally; in the loading process, the part of the loaded test piece between the upper clamps moves horizontally, so that the central area of the test piece generates pure shear load; at the moment, the rotary table is started and X-rays are emitted, and after a plurality of rotation cycles, a clear test piece damage evolution image can be obtained.
In the loading process, the central area of the test piece to be loaded is subjected to pure shear load.
Claims (8)
1. A composite in-situ shear loading apparatus suitable for synchrotron radiation CT, the apparatus comprising a loading module, a transparent radiation module and an encapsulation module, wherein:
the loading module comprises a screw, an upper extrusion part, a lower extrusion part, 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 part and the lower extrusion part from top to bottom in sequence;
the upper shell, the middle shell and the lower shell are longitudinally connected in sequence from top to bottom;
grooves are formed in the lower end of the upper clamp and the upper end of the lower clamp, and the sliding blocks are respectively arranged in 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 mode and is aligned with the upper clamp in the longitudinal direction after being assembled;
the upper extrusion part and the lower extrusion part are respectively connected with two pairs of four connecting arms, and the upper clamp, the connecting arms, the upper extrusion part, the connecting arms and the upper shell are sequentially connected from left to right;
through holes are formed in the upper end of the upper clamp and the upper end of the upper shell, and parallel shafts transversely penetrate through the through holes in the upper end of the upper clamp and the through holes in the upper end of the upper shell in sequence.
2. The composite in situ shear loading apparatus suitable for synchrotron radiation CT of claim 1, wherein the upper extrusion and the right flank of the upper housing are oppositely disposed in parallel.
3. The composite in-situ shear loading apparatus suitable for synchrotron radiation CT as claimed in claim 1, wherein the screw and the lower extrusion are both 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 as recited in claim 1, wherein the upper, middle, and lower housings are connected by a flange therebetween.
5. The composite in situ shear loading apparatus for synchrotron radiation CT as recited in claim 1, wherein the intermediate housing is made of magnesium-lithium alloy.
6. The composite in situ shear loading apparatus for synchrotron radiation CT as recited in claim 1, wherein said intermediate housing is provided at a central location of the apparatus.
7. The composite in situ shear loading apparatus for synchrotron radiation CT as recited in claim 1, wherein said upper housing is connected to a connector in a loading module.
8. The composite material in-situ shear loading apparatus for synchrotron radiation CT as recited in claim 1, wherein the upper clamp is connected to the connection piece in the loading module by a bolt.
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 |
Applications Claiming Priority (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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| Publication Number | Publication Date |
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| CN113640149A true CN113640149A (en) | 2021-11-12 |
| CN113640149B CN113640149B (en) | 2024-01-30 |
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2021
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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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| Publication number | Publication date |
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| CN113640149B (en) | 2024-01-30 |
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