CN116840076A - Lateral impact test device - Google Patents
Lateral impact test device Download PDFInfo
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- CN116840076A CN116840076A CN202210294588.0A CN202210294588A CN116840076A CN 116840076 A CN116840076 A CN 116840076A CN 202210294588 A CN202210294588 A CN 202210294588A CN 116840076 A CN116840076 A CN 116840076A
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- 238000009863 impact test Methods 0.000 title claims abstract description 47
- 239000002131 composite material Substances 0.000 claims abstract description 109
- 238000012360 testing method Methods 0.000 claims abstract description 100
- 230000009471 action Effects 0.000 claims abstract description 4
- 230000006378 damage Effects 0.000 claims description 14
- 238000003825 pressing Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/303—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated only by free-falling weight
-
- 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
-
- 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
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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)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to the technical field of impact test devices, and discloses a lateral impact test device. The lateral impact test device comprises a lateral clamp, a carrying platform and a drop hammer. The lateral clamp comprises a clamping table, a fastener, a guide plate and a punch, wherein the clamping table comprises a base plate and two vertical plates, and the base plate is arranged on the carrying table. The two vertical plates are oppositely arranged on the base plate along the first direction, the base plate and the two vertical plates enclose an impact groove, and the composite material test piece is vertically arranged in the impact groove. At least one vertical plate is provided with a positioning hole. The fastener passes through the locating hole on one riser and presses the combined material test piece against another riser. The guide plate is arranged at the upper end of the vertical plate, a guide hole is formed in the guide plate, and the punch head passes through the guide hole and then is abutted to the lateral end face of the composite material test piece. The punch impacts the lateral end face of the composite material test piece under the hammering action of the drop hammer. The lateral clamp can stably clamp the composite material test piece, so that the punch can accurately impact the lateral end face of the composite material test piece.
Description
Technical Field
The invention relates to the technical field of impact test devices, in particular to a lateral impact test device.
Background
The composite material structure on the aircraft may suffer various impact injuries such as tool drop in the manufacturing and using processes, and the composite material structure is very sensitive to the impact injuries due to the brittle mechanical characteristics of the composite material. Especially low-speed impact damage easily causes large-scale damage to the inside of the composite material structure.
At present, a great deal of research on the impact process of the composite material is carried out at home and abroad, but the research direction is mostly out-of-plane impact at the center of the composite material plate. The edge side impact of the composite is also a common impact mode of the composite structure during transportation and service, and may also have a severe impact on the load carrying capacity of the composite structure. However, there is currently a lack of reliable test jigs to stably clamp test pieces of composite materials to be tested to complete a lateral impact test, resulting in difficulty in accurately performing the lateral impact test of the composite materials.
Accordingly, a lateral impact test device is needed to solve the above problems.
Disclosure of Invention
The invention aims to provide a lateral impact test device which is used for stably clamping a composite material test piece and improving the accuracy of a lateral impact test.
The technical scheme adopted by the invention is as follows:
a lateral impact test device comprising a carrier and a drop hammer positioned above the carrier, wherein the lateral impact test device further comprises a lateral clamp comprising:
the clamping table comprises a base plate and two vertical plates, and the base plate is detachably arranged on the carrying table; the two vertical plates are oppositely arranged on the base plate along the first direction, so that the base plate and the two vertical plates form an impact groove, and the composite material test piece can be vertically arranged in the impact groove; at least one vertical plate is provided with a positioning hole;
the fastening piece can pass through the positioning hole on one vertical plate and press the composite material test piece against the other vertical plate; and
the guide plate is detachably arranged at the upper end of the vertical plate, a guide hole is formed in the guide plate, and the punch penetrates through the guide hole and then abuts against the lateral end face of the composite material test piece; the punch is configured to be able to impact a lateral end face of the composite test piece under the hammering action of the drop hammer.
Further, the punch is abutted against the center of the lateral end face of the composite material test piece; the upper end face of the vertical plate at the middle position along the length direction of the vertical plate is concaved inwards to form an avoidance groove so as to avoid interference with impact damage of the composite material test piece.
Further, the avoidance groove is a semicircular groove, and the diameter of the semicircular groove is equal to the height of the vertical plate.
Further, the upper end face of the vertical plate along the length direction of the vertical plate is provided with scale marks, and the composite material test piece can be positioned through the scale marks.
Further, the side impact test device further includes:
the bushing is detachably arranged in the guide hole, the bushing is provided with an axial through hole, and the punch movably penetrates through the through hole of the bushing and abuts against the lateral end face of the composite material test piece.
Further, the side impact test device further includes:
the connecting piece, set up the bar hole that extends along the first direction on the deflector, the locking hole has been seted up to the upper end correspondence of riser, the connecting piece be configured to can pass behind the bar hole with locking hole cooperation installation, in order will the deflector install in on the riser.
Further, the connecting piece is a bolt, the locking hole is a threaded hole, and the connecting piece is in threaded fit with the locking hole.
Further, the side impact test device further includes:
the two ends of the composite material test piece along the length direction of the composite material test piece are respectively clamped between the two backing plates; at least two fasteners penetrate through the corresponding positioning holes on one vertical plate and then respectively press against the two backing plates on the same side of the composite material test piece, so that the composite material test piece and the four backing plates are jointly pressed against the other vertical plate.
Further, a plurality of positioning holes are formed in the vertical plate at intervals along the length direction of the vertical plate.
Further, the fastening piece is a bolt, the positioning hole is a threaded hole, and the fastening piece is in threaded fit with the positioning hole.
The beneficial effects of the invention are as follows:
according to the lateral impact test device provided by the invention, the base plate and the two vertical plates on the clamping table enclose the impact groove, and the composite material test piece can be vertically placed in the impact groove. The fastener can press the composite material test piece against one vertical plate, so that the position of the composite material test piece in the impact groove is locked. The lateral clamp can stably clamp the composite material test piece, and the punch head can accurately impact the lateral end face of the composite material test piece through hammering the punch head by the drop hammer so as to complete the lateral impact test of the composite material test piece. Meanwhile, the structure of the lateral clamp is simple, the clamping operation is simple and easy, and the efficiency of the lateral impact test is improved.
Drawings
FIG. 1 is a schematic view of a side impact test apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a lateral clamp with a composite test piece clamped according to an embodiment of the present invention;
FIG. 3 is an exploded schematic view of a lateral clamp clamping a composite test piece provided in an embodiment of the present invention.
The parts in the figures are named and numbered as follows:
10. a composite material test piece;
1. a carrier; 2. drop hammer;
3. a lateral clamp; 31. a clamping table; 311. a substrate; 312. a vertical plate; 3121. positioning holes; 3122. an avoidance groove; 3123. a locking hole; 313. an impact groove; 32. a fastener; 33. a guide plate; 331. a guide hole; 332. a bar-shaped hole; 34. a punch; 35. a bushing; 36. a backing plate; 37. a connecting piece; 38. a cushion block; 381. a through hole;
4. a column; 5. a connecting rod; 6. a cross beam; 7. a guide post; 8. a bottom plate.
Detailed Description
In order to make the technical problems solved, the technical scheme adopted and the technical effects achieved by the invention more clear, the technical scheme of the invention is further described below by a specific embodiment in combination with the attached drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the drawings related to the present invention are shown.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
As shown in fig. 1, this embodiment discloses a lateral impact test device, which is mainly used for performing an impact test on a lateral edge of a composite material test piece 10, so as to simulate the damage condition of a composite material structure after being subjected to lateral impact, and improve the research and application of the composite material.
As shown in fig. 1, the side impact test apparatus includes a frame, a stage 1, a link 5, and a drop hammer 2 located above the stage 1. The frame is assembled by a bottom plate 8, two upright posts 4, three cross beams 6 and two guide posts 7. Specifically, two upright posts 4 are vertically arranged on the bottom plate 8, and one of the cross beams 6 is lapped on the top ends of the two upright posts 4 and is assembled together to form the portal frame. The carrier 1 is fixed to the base plate 8 and is located in the gantry. Two guide posts 7 are vertically installed at the two ends of the top of the portal frame respectively, and the other cross beam 6 is fixedly installed at the top ends of the two guide posts 7, so that the two guide posts 7 and the two cross beams 6 positioned at the upper end and the lower end of the guide posts 7 enclose to form a square structure, and the structural strength and the stability of the frame are improved. The two ends of the last cross beam 6 are respectively sleeved on the two guide posts 7 in a sliding way and are positioned between the other two cross beams 6. One end of the connecting rod 5 is fixedly arranged on the cross beam 6 positioned at the middle position, the other end of the connecting rod extends into the portal frame and is hung with the drop hammer 2, and the drop hammer 2 is positioned right above the carrying platform 1. It will be appreciated that as the intermediate beam 6 slides downwardly along the guide post 7, the drop hammer 2 moves downwardly simultaneously and impacts the composite test piece 10 on the carrier 1.
The lack of a reliable test fixture to stably clamp the composite test piece 10 to be tested to complete the lateral impact test results in difficulty in accurately performing the lateral impact test of the composite material.
To solve the above-described problems, as shown in fig. 2 and 3, the side impact test apparatus of the present embodiment further includes a side jig 3, the side jig 3 including a clamping table 31, a fastener 32, a guide plate 33, and a punch 34. The clamping table 31 includes a base plate 311 and two standing plates 312, and the base plate 311 is detachably disposed on the carrier table 1. The two vertical plates 312 are oppositely arranged on the base plate 311 along the first direction, so that the base plate 311 and the two vertical plates 312 enclose an impact groove 313, and the composite material test piece 10 can be vertically placed in the impact groove 313. At least one of the risers 312 is provided with a pilot hole 3121. The fastener 32 is able to pass through the locating hole 3121 on one riser 312 and press the composite test piece 10 against the other riser 312. The guide plate 33 is detachably disposed at the upper end of the vertical plate 312, the guide plate 33 is provided with a guide hole 331, and the punch 34 passes through the guide hole 331 and abuts against the lateral end surface of the composite material test piece 10. The punch 34 is capable of striking the lateral end face of the composite test piece 10 under the hammering action of the drop hammer 2.
In the present embodiment, the lateral clamp 3 can stably clamp the composite material test piece 10, and the punch 34 is hammered by the drop hammer 2 so that the punch 34 can precisely impact the lateral end face of the composite material test piece 10 to complete the lateral impact test of the composite material test piece 10. Meanwhile, the structure of the lateral clamp 3 is simple, the clamping operation is simple and easy, and the efficiency of the lateral impact test is improved.
The main process of the lateral impact test is as follows: the lateral clamp 3 is removed from the carrier 1, and the composite material test piece 10 to be tested (generally rectangular plate-like) is vertically placed in the impact groove 313 and is abutted against the inner side wall of one of the vertical plates 312, with one lateral end face of the edge of the composite material test piece 10 facing upward.
Then, the fastener 32 is passed through the positioning hole 3121 of one of the vertical plates 312 and then pressed against the front end surface of the composite test piece 10, so that the composite test piece 10 is tightly fitted on the inner side wall of the other vertical plate 312 to lock the composite sample in the impact groove 313.
Next, the guide plate 33 is mounted on the upper end of the vertical plate 312, and the punch 34 passes through the guide hole 331 of the guide plate 33 and then abuts against the upward side end face of the composite material test piece 10, thereby completing the clamping of the composite material test piece 10.
Finally, the lateral clamp 3 is fixedly arranged on the carrier 1, the drop hammer 2 drops and hammers the punch 34, and the punch 34 impacts the lateral end face of the composite material test piece 10, so that the damage condition of the composite material test piece 10 after being subjected to lateral impact is obtained.
Preferably, the base plate 311 is detachably mounted on the carrier 1 by bolts, so that the connection strength is high, the dismounting is convenient, and the impact test efficiency is improved.
It should be noted that, the bottom end of the punch 34 is spherical, the punch 34 is in point contact with the upward side end surface of the composite material test piece 10, and the punch 34 abuts against the center of the side end surface of the composite material test piece 10, so as to obtain an accurate damage condition.
In this embodiment, the center plane of the two risers 312 along their length is coplanar with the center plane of the composite test piece 10 in the impingement slot 313 along their length. The upper end surfaces of the vertical plates 312 along the middle position of the length direction are concavely formed into the avoidance grooves 3122, and the avoidance grooves 3122 on the two vertical plates 312 not only can facilitate the observation and confirmation of whether the punch 34 is abutted to the center of the lateral end surface of the composite material test piece 10 from the front-back direction (first direction), but also can avoid the impact damage of the vertical plates 312 interfering with the composite material test piece 10, thereby improving the accuracy of the lateral impact test of the composite material test piece 10.
In addition, an operator can also extend fingers or other clamping tools into the avoidance groove 3122 to quickly pick and place the composite test piece 10 in the impact groove 313, thereby improving the clamping efficiency of the lateral clamp 3.
Currently, when the composite test piece 10 is subjected to a side impact, the damaged area occurs approximately in the area of one third of the size of the composite test piece 10 in the direction of the impact force. For example, the direction of the impact force in the present embodiment is the vertical direction, and the dimension of the composite material test piece 10 in the impact force direction is the height dimension thereof, that is, when the side impact occurs, the damaged area on the composite material test piece 10 is in a semicircular area with the impact point as the center and the height dimension of one third as the radius.
As shown in fig. 2 and 3, the escape groove 3122 is a semicircular groove having a diameter equal to the height of the standing plate 312. Because the height of the composite material test piece 10 is approximately equal to the height of the vertical plate 312, the vertical plate 312 has enough avoiding space to avoid interference with the impact damage.
In order to achieve accurate positioning of the composite test piece 10, the riser 312 has graduation marks along an upper end surface in a length direction thereof, by which the composite test piece 10 can be positioned. An operator can quickly and accurately adjust the position of the composite material test piece 10 in the impact groove 313 according to the scale value corresponding to the scale line, so that the adjustment precision and the position precision of the composite material test piece 10 are improved.
In order to avoid damage to the composite test piece 10 caused by the fastener 32, as shown in fig. 2 and 3, the lateral impact test device further includes a pad 36, and two ends of the composite test piece 10 along the length direction thereof are respectively sandwiched between the two pads 36. At least two fasteners 32 are respectively pressed against two backing plates 36 on the same side of the composite material test piece 10 after passing through corresponding positioning holes 3121 on one vertical plate 312, so as to jointly press the composite material test piece 10 and four backing plates 36 against the other vertical plate 312.
After the composite material test piece 10 is placed in the impact groove 313, four backing plates 36 are arranged in pairs, and two backing plates 36 of each group are respectively placed at the end parts of the composite material test piece 10 along the length direction of the composite material test piece, so that the fastening pieces 32 are pressed against the backing plates 36, the two end parts of the composite material test piece 10 are uniformly stressed, and damage to the composite material test piece 10 caused by stress concentration near the pressing points of the fastening pieces 32 is avoided.
It should be noted that in this embodiment, only one of the vertical plates 312 is provided with the positioning hole 3121, which reduces the processing amount of the lateral clamp 3 and is beneficial to reducing the cost.
As shown in fig. 2 and 3, the standing plate 312 is provided with a plurality of positioning holes 3121 spaced apart in the length direction thereof. It will be appreciated that the two ends of the composite test piece 10 of different lengths are opposite the locating holes 3121 of different locations along their length so that the fasteners 32 can pass through the locating holes 3121 of corresponding locations and bear against the two ends of the composite test piece 10. The lateral clamp 3 can clamp composite material test pieces 10 with different lengths, and the universality of the lateral clamp 3 is improved.
Specifically, the fastener 32 is a bolt, the positioning hole 3121 is a threaded hole, and the fastener 32 is in threaded engagement with the positioning hole 3121, so that the operation of pressing and releasing the composite material test piece 10 is simple. Meanwhile, when the thicknesses of the composite material test pieces 10 are different, the length of the fastener 32 screwed into the impact groove 313 is only required to be adjusted adaptively, so that the fastener 32 can be ensured to lock the composite material test pieces 10 with different thicknesses, and the universality of the lateral clamp 3 is further improved.
In this embodiment, two rows of positioning holes 3121 are formed on one vertical plate 312, and two ends of the composite material test piece 10 are respectively pressed and locked by four fasteners 32, so that the pressing force applied to the composite material test piece 10 is improved, and the stability of the composite material test piece 10 is improved.
As shown in fig. 2 and 3, the lateral impact test apparatus further includes a connecting member 37, the guide plate 33 is provided with a bar hole 332 extending along the first direction, the upper end of the vertical plate 312 is correspondingly provided with a locking hole 3123, and the connecting member 37 can pass through the bar hole 332 and then be mounted in cooperation with the locking hole 3123, so as to mount the guide plate 33 on the vertical plate 312. The guide plate 33 can adjust the position along the first direction (the arrangement direction of the two vertical plates 312) through the strip-shaped hole 332, so that the punch 34 always abuts against the center of the lateral end face of the composite material test piece 10, and the versatility of the lateral clamp 3 is further improved.
Specifically, the connecting piece 37 is a bolt, the locking hole 3123 is a threaded hole, and the quick assembly disassembly of the guide plate 33 can be realized by the threaded fit of the connecting piece 37 and the locking hole 3123, so that the clamping efficiency of the lateral clamp 3 is improved.
The side impact test is to study the influence of the damage to the composite material test piece 10 caused by the punches 34 of different sizes according to the test requirements. Thus, the punch 34 needs to be replaced with a different size according to different test requirements.
To solve the above problem, as shown in fig. 3, the lateral impact test apparatus further includes a bushing 35, wherein the bushing 35 is detachably disposed in the guide hole 331, the bushing 35 has an axial through hole 381, and the punch 34 is movably disposed in the through hole 381 of the bushing 35 and abuts against the lateral end surface of the composite material test piece 10. The bushing 35 with different sizes is replaced to change the inner diameter of the through hole 381, so that the punch 34 with different sizes is matched with the guide hole 331 of the guide plate 33, modification or reprocessing is not needed, meanwhile, the bushing 35 is an outsourcing part, and the replacement cost is reduced.
Specifically, the bushing 35 is embedded in the guide hole 331 by means of an interference connection, so that the bushing 35 is easy to install and replace.
The above embodiments of the present embodiment merely illustrate the basic principle and features of the present invention, and the present invention is not limited to the above embodiments, but may be variously changed and modified without departing from the spirit and scope of the present invention, which are all within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A lateral impact test device comprising a carrier (1) and a drop hammer (2) located above the carrier (1), characterized in that the lateral impact test device further comprises a lateral clamp (3), the lateral clamp (3) comprising:
the clamping table (31) comprises a base plate (311) and two vertical plates (312), wherein the base plate (311) is detachably arranged on the carrying table (1); the two vertical plates (312) are oppositely arranged on the base plate (311) along a first direction, so that the base plate (311) and the two vertical plates (312) enclose an impact groove (313), and the composite material test piece (10) can be vertically placed in the impact groove (313); at least one vertical plate (312) is provided with a positioning hole (3121);
a fastener (32) capable of passing through the positioning hole (3121) of one of the risers (312) and pressing the composite test piece (10) against the other riser (312); and
the guide plate (33) is detachably arranged at the upper end of the vertical plate (312), a guide hole (331) is formed in the guide plate (33), and the punch (34) passes through the guide hole (331) and then abuts against the lateral end face of the composite material test piece (10); the punch (34) is configured to be able to strike a lateral end face of the composite test piece (10) under the hammering action of the drop hammer (2).
2. The lateral impact test device according to claim 1, characterized in that the punch (34) abuts against the center of the lateral end face of the composite material test piece (10); the upper end surface of the middle position of the vertical plate (312) along the length direction is concavely formed with an avoidance groove (3122) so as to avoid interference with impact damage of the composite material test piece (10).
3. The side impact test device according to claim 2, characterized in that the relief groove (3122) is a semicircular groove having a diameter equal to the height of the riser (312).
4. The side impact test device according to claim 2, characterized in that the riser (312) has graduation marks along its upper end face in the length direction, by means of which graduation marks the composite material test piece (10) can be positioned.
5. The lateral impact testing apparatus of claim 1, further comprising:
the bushing (35) is detachably arranged in the guide hole (331), the bushing (35) is provided with an axial through hole (381), and the punch (34) movably penetrates through the through hole (381) of the bushing (35) and is abutted against the lateral end face of the composite material test piece (10).
6. The lateral impact testing apparatus of claim 1, further comprising:
the connecting piece (37), the bar hole (332) that extends along the first direction has been seted up on deflector (33), locking hole (3123) have been seted up to the upper end of riser (312) correspondence, connecting piece (37) be configured to can pass behind bar hole (332) with locking hole (3123) cooperation installation, in order to with deflector (33) install on riser (312).
7. The side impact test device according to claim 6, wherein the connecting member (37) is a bolt, the locking hole (3123) is a threaded hole, and the connecting member (37) is screw-fitted with the locking hole (3123).
8. The lateral impact testing apparatus of claim 1, further comprising:
the two ends of the composite material test piece (10) along the length direction of the composite material test piece are respectively clamped between the two backing plates (36); at least two fasteners (32) penetrate through corresponding positioning holes (3121) on one vertical plate (312) and then respectively press against two backing plates (36) on the same side of the composite material test piece (10), so as to jointly press the composite material test piece (10) and four backing plates (36) against the other vertical plate (312).
9. The side impact test device according to claim 1, wherein the upright plate (312) is provided with a plurality of positioning holes (3121) at intervals along the length direction thereof.
10. The side impact test device according to claim 1, wherein the fastener (32) is a bolt, the positioning hole (3121) is a threaded hole, and the fastener (32) is in threaded engagement with the positioning hole (3121).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210294588.0A CN116840076A (en) | 2022-03-23 | 2022-03-23 | Lateral impact test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210294588.0A CN116840076A (en) | 2022-03-23 | 2022-03-23 | Lateral impact test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116840076A true CN116840076A (en) | 2023-10-03 |
Family
ID=88167536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210294588.0A Pending CN116840076A (en) | 2022-03-23 | 2022-03-23 | Lateral impact test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116840076A (en) |
-
2022
- 2022-03-23 CN CN202210294588.0A patent/CN116840076A/en active Pending
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