CN217654904U - Testing tool for tensile strength and modulus between layers of composite material - Google Patents
Testing tool for tensile strength and modulus between layers of composite material Download PDFInfo
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- CN217654904U CN217654904U CN202221342784.2U CN202221342784U CN217654904U CN 217654904 U CN217654904 U CN 217654904U CN 202221342784 U CN202221342784 U CN 202221342784U CN 217654904 U CN217654904 U CN 217654904U
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- 238000012360 testing method Methods 0.000 title claims abstract description 36
- 239000002131 composite material Substances 0.000 title claims abstract description 11
- 230000000149 penetrating effect Effects 0.000 claims abstract description 7
- 238000012545 processing Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Abstract
The utility model relates to a test tool for the tensile strength and modulus between layers of composite materials, which comprises an adapter (1) and a sample pull rod (2); the crossover joint (1) comprises: a columnar body (11); a T-shaped groove (11 a) penetrating through the columnar main body (11) is formed in the lower end of the columnar main body (11) along the radial direction of the columnar main body (11), and the T-shaped groove (11 a) is provided with an opening on the lower end face of the columnar main body (11); one end of the sample pull rod (2) is detachably connected with the T-shaped groove (11 a). The mode that the crossover sub of this scheme was connected through adopting T type groove and experimental pull rod not only connects convenient quick, and simple structure, and easy processing is with low costs.
Description
Technical Field
The utility model relates to the field of machinary, especially, relate to a test fixture that is used for tensile strength and modulus between combined material layer.
Background
In recent years, composite materials are rapidly developed, gradually replace wood and metal alloys, and are widely applied to the fields of aerospace, automobiles, electronics, electrical, wind power, body-building equipment and the like. With the continuous expansion of the application field of the composite material, the detection of the related performance of the composite material gradually becomes a hot spot. Due to the anisotropic characteristics of the composite material, the mechanical properties of the composite material are influenced by factors such as material quality, fiber content, process method, operators and the like, and the composite material has variable mechanical properties and needs to be tested frequently.
The existing test mode has the following disadvantages:
1. the sample assembly needs to be connected by a pin or a thread, and the speed of replacing the sample assembly is slow.
2. The test tooling is relatively complex.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a test fixture that is used for tensile strength and modulus between combined material layer.
In order to realize the purpose of the utility model, the utility model provides a test tool for the tensile strength and modulus between layers of composite materials, which comprises an adapter and a sample pull rod;
the crossover sub includes: a columnar body;
a T-shaped groove penetrating through the columnar main body is formed in the lower end of the columnar main body along the radial direction of the columnar main body, and an opening is formed in the T-shaped groove on the lower end face of the columnar main body;
one end of the sample pull rod is detachably connected with the T-shaped groove.
According to one aspect of the present invention, a positioning pin hole penetrating through the columnar main body is further provided on the columnar main body along a radial direction of the columnar main body;
the positioning pin hole is arranged close to the upper end of the columnar main body.
According to an aspect of the utility model, the extending direction of locating pin hole with the extending direction looks vertically setting in T type groove.
According to an aspect of the present invention, the columnar body includes: the first connecting part and the second connecting part are coaxially arranged;
the T-shaped groove is formed in one end, far away from the second connecting part, of the first connecting part;
the positioning pin hole is positioned on the second connecting part;
the radial dimension of the second connecting portion is smaller than the radial dimension of the first connecting portion.
According to an aspect of the present invention, the second connecting portion is a hollow tubular body.
According to the utility model discloses an aspect, the sample pull rod includes: a horizontal portion and a vertical portion;
the vertical part and the horizontal part are coaxial and fixedly connected;
the horizontal part can be supported in the T-shaped groove in a sliding manner with the T-shaped groove;
the end surface of one end of the vertical part far away from the horizontal part is a connecting plane for bonding a sample;
the connecting plane is parallel to the connecting surface of the horizontal part and the vertical part.
According to one aspect of the present invention, the horizontal portion and the vertical portion are both rectangular bodies;
the thickness of the horizontal part is consistent with that of the vertical part along the horizontal direction.
According to one aspect of the invention, the horizontal portion and the vertical portion are both cylindrical;
the horizontal portion has a radial dimension greater than a radial dimension of the vertical portion.
According to one aspect of the present invention, the adapter is provided with two;
the sample pull rod is provided with two.
According to the utility model discloses a scheme, the mode that crossover sub is connected through adopting T type groove and experimental pull rod, not only connect convenient quick, and simple structure, easy processing, it is with low costs.
According to the utility model discloses a scheme, the measurement of tensile strength, tensile modulus can be satisfied to the test fixture of this scheme, and application scope is wide.
According to the utility model discloses a scheme, the crossover sub of this scheme can realize the quick replacement of sample subassembly, to the sample subassembly that a large amount of needs tested, can alleviate tester work load, reduces intensity of labour.
Drawings
Fig. 1 is a block diagram schematically illustrating an adapter according to an embodiment of the present invention;
FIG. 2 is a block diagram schematically illustrating a sample assembly according to one embodiment of the present invention;
FIG. 3 is a block diagram schematically illustrating a sample assembly according to another embodiment of the present invention;
fig. 4 is a view schematically illustrating an installation structure of a test fixture according to an embodiment of the present invention.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
In describing embodiments of the present invention, the terms "longitudinal," "lateral," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and other terms are used in an orientation or positional relationship shown in the associated drawings for convenience and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present invention.
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, which are not repeated herein, but the present invention is not limited to the following embodiments.
Referring to fig. 1, 2 and 4, according to an embodiment of the present invention, the tool for testing the interlayer tensile strength and modulus of the composite material includes an adapter 1 and a sample pull rod 2. In the present embodiment, the adapter 1 includes: a columnar body 11; a T-shaped groove 11a penetrating through the columnar body 11 is formed at the lower end of the columnar body 11 along the radial direction of the columnar body 11, and the T-shaped groove 11a has an opening on the lower end surface of the columnar body 11. In the present embodiment, the portion of the T-shaped groove 11a with a larger width is located at the top, the portion of the T-shaped groove 11a with a smaller width is located at the bottom, and the portion of the T-shaped groove 11a with a smaller width forms an opening with a smaller width on the lower end surface of the columnar body 11, so that the T-shaped groove 11a forms a supporting step on the columnar body 11. In this embodiment, one end of the sample pull rod 2 is detachably connected to the T-shaped groove 11a, and specifically, the upper end of the sample pull rod 2 is supported on the supporting step formed on the columnar body 11 by the T-shaped groove 11 a.
By the above arrangement. The mode through set up T type groove on crossover sub can realize that the sample pull rod is packed into from the different directions in T type groove, the effectual installation convenience that improves the sample pull rod. In addition, through the mode that sets up T type recess, still can make things convenient for its position on crossover sub of the free adjustment of sample pull rod, further improved the installation flexibility of sample pull rod to and the efficiency that the sample was changed.
As shown in fig. 1, according to an embodiment of the present invention, a positioning pin hole 11b penetrating through the columnar body 11 is further provided on the columnar body 11 in a radial direction of the columnar body 11. In the present embodiment, the dowel hole 11b is provided near the upper end of the columnar body 11.
Through the setting, through set up the locating pin hole on the crossover sub, can be convenient adopt the connecting pin with the crossover sub accurate install on test platform, simple to operate not only, and positioning accuracy is high, the effectual different sample pull rods that have improved when this scheme is used for the sample to measure and crossover sub combination change adjustment efficiency.
As shown in fig. 1, according to an embodiment of the present invention, the extension direction of the positioning pin hole 11b is perpendicular to the extension direction of the T-shaped groove 11 a.
Through the setting, the extending direction of the positioning pin hole is perpendicular to the extending direction of the T-shaped groove, so that when a test sample is stretched, the tensile force applied by the test platform is distributed along the direction perpendicular to the T-shaped groove, the tensile force applied to the sample pull rod in the width direction of the T-shaped groove can be kept consistent, the loss of the tensile force of the test platform at the notch position of the lower end of the T-shaped groove can be effectively avoided, and the test result can be guaranteed to be accurate and beneficial.
As shown in fig. 1, according to an embodiment of the present invention, the columnar body 11 includes: a first connection portion 111 and a second connection portion 112 arranged coaxially. In the present embodiment, the T-shaped groove 11a is provided at one end of the first connection portion 111 away from the second connection portion 112; the positioning pin hole 11b is located on the second connecting portion 112. In the present embodiment, the radial dimension of the second connection portion 112 is smaller than the radial dimension of the first connection portion 111. Through the arrangement, the accurate connection of the columnar main body and the mounting position of the test platform is ensured.
As shown in fig. 1, according to an embodiment of the present invention, the second connecting portion 112 is a hollow tubular body. In the present embodiment, the positioning pin hole 11b is provided through the second connecting portion 112, and further, a plurality of coaxial holes may be formed on the side wall of the second connecting portion 112 to face each other. In this embodiment, when the positioning connecting pin is used to connect the second connecting portion 112 with the testing platform, the testing platform applies a pulling force to the whole adapter through the contact position between the positioning connecting pin and the two connecting holes of the second connecting portion 112.
Through the arrangement, through the second connecting part adopting the tubular structure, the pulling force applied by the test platform can be transmitted to the T-shaped groove below through two connecting hole positions on the second connecting part, and simultaneously, because the extending direction of the positioning pin hole 11b is vertical to the width direction of the T-shaped groove, two hole positions formed on the second connecting part are respectively and correspondingly arranged on two sides of the T-shaped groove in the width direction, so that the concentrated transmission of the force for ensuring the test platform is beneficial, and the accuracy of the test result is ensured.
As shown in fig. 2, according to an embodiment of the present invention, the sample pull rod 2 includes: a horizontal portion 21 and a vertical portion 22. In the present embodiment, the vertical portion 22 is coaxially and fixedly connected to the horizontal portion 21. In the present embodiment, the horizontal portion 21 is supported in the T-shaped groove 11a slidably with the T-shaped groove 11 a; the end face of the end of the vertical portion 22 remote from the horizontal portion 21 is a connection plane for bonding a sample. In the present embodiment, the connection plane is provided in parallel with the connection plane of the horizontal portion 21 to the vertical portion 22.
Through the setting, set up the sample pull rod into axisymmetric structure, it is useful to guaranteeing the connection stability of its testing process sample pull rod and the accuracy of power conduction, and then it is useful to the accuracy of assurance test structure.
As shown in fig. 2, according to an embodiment of the present invention, the horizontal portion 21 and the vertical portion 22 are rectangular bodies; in the horizontal direction, the thickness of the horizontal portion 21 is set in conformity with the thickness of the vertical portion 22.
As shown in fig. 3, according to another embodiment of the present invention, the horizontal part 21 and the vertical part 22 are both cylinders; the horizontal portion 21 has a radial dimension greater than that of the vertical portion 22.
In the present embodiment, the sample pull rod of the present embodiment can be used for samples of different shapes (e.g., rectangular samples, cylindrical samples, oval samples, etc.). In this embodiment, the shape of the sample is formed by a vacuum bagging process, and after the molding is completed, the end face is polished by sandpaper and wiped by acetone to improve the bonding strength.
As shown in fig. 4, according to an embodiment of the present invention, two adapters 1 are provided; two sample pull rods 2 are provided. In this embodiment, the ends of the two sample pull rods 2 are respectively bonded to the two opposite ends of the sample, so as to form a complete sample assembly, and the two adapter joints are arranged at intervals opposite to each other, so as to respectively connect with the ends of the corresponding sample pull rods to realize the tensile measurement of the sample. In the embodiment, when the vertical part 22 of the sample pull rod 2 is a cylinder, the vertical part 22 of the two sample pull rods 2 can be aligned and connected with the sample by using a tool with a V-shaped groove, so that the coaxiality of connection is effectively ensured. When the vertical part 22 of the sample pull rod 2 is a rectangular body, the same tool with a rectangular groove can be used for realizing the coaxial connection of the two sample pull rods and the sample.
For further explanation of the scheme, the installation mode of the scheme is further explained by combining the attached drawings.
As shown in fig. 4, the shape of the sample pull rod 2 is selected according to the shape of the sample to be subjected to the tensile test. Then, the joint plane of the vertical portions 22 of the two sample rods 2 and the end face of the sample are bonded to each other to produce a corresponding sample assembly. Further, the adapter 1 matched with the sample pull rod 2 is selected and is installed on the installation position of the test platform through the positioning connecting pin. And finally, the test can be started by matching the sample assembly with the T-shaped groove through the horizontal part 21 at the end part of the sample pull rod.
The foregoing is merely exemplary of embodiments of the present invention and reference should be made to the apparatus and structures herein not described in detail as it is known in the art to practice the same in general equipment and general methods.
The above description is only one embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A test tool for testing the tensile strength and modulus between layers of a composite material is characterized by comprising an adapter (1) and a sample pull rod (2);
the crossover joint (1) comprises: a columnar body (11);
a T-shaped groove (11 a) penetrating through the columnar main body (11) is formed in the lower end of the columnar main body (11) along the radial direction of the columnar main body (11), and the T-shaped groove (11 a) is provided with an opening on the lower end face of the columnar main body (11);
one end of the sample pull rod (2) is detachably connected with the T-shaped groove (11 a).
2. The test tool according to claim 1, wherein a positioning pin hole (11 b) penetrating through the columnar main body (11) is further formed in the columnar main body (11) along the radial direction of the columnar main body (11);
the positioning pin hole (11 b) is arranged close to the upper end of the columnar main body (11).
3. The test tool according to claim 2, wherein the extension direction of the positioning pin hole (11 b) is perpendicular to the extension direction of the T-shaped groove (11 a).
4. The test fixture according to claim 3, wherein the cylindrical body (11) comprises: a first connection section (111) and a second connection section (112) which are coaxially provided;
the T-shaped groove (11 a) is arranged at one end, far away from the second connecting part (112), of the first connecting part (111);
the positioning pin hole (11 b) is positioned on the second connecting part (112);
the radial dimension of the second connection portion (112) is smaller than the radial dimension of the first connection portion (111).
5. The test fixture according to claim 4, wherein the second connecting portion (112) is a hollow tubular body.
6. The test fixture according to claim 5, wherein the specimen pull rod (2) comprises: a horizontal portion (21) and a vertical portion (22);
the vertical part (22) is coaxial and fixedly connected with the horizontal part (21);
the horizontal part (21) is supported in the T-shaped groove (11 a) in a sliding manner with the T-shaped groove (11 a);
the end surface of one end of the vertical part (22) far away from the horizontal part (21) is a connecting plane for bonding a sample;
the connecting plane is arranged in parallel with the connecting surface of the horizontal part (21) and the vertical part (22).
7. The test tool according to claim 6, wherein the horizontal portion (21) and the vertical portion (22) are both rectangular bodies;
the thickness of the horizontal part (21) is arranged to correspond to the thickness of the vertical part (22) in the horizontal direction.
8. The test tool according to claim 7, wherein the horizontal portion (21) and the vertical portion (22) are both cylindrical;
the horizontal portion (21) has a radial dimension greater than that of the vertical portion (22).
9. The test tool according to any one of claims 1 to 8, wherein the adapter (1) is provided with two;
the number of the sample pull rods (2) is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221342784.2U CN217654904U (en) | 2022-05-31 | 2022-05-31 | Testing tool for tensile strength and modulus between layers of composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221342784.2U CN217654904U (en) | 2022-05-31 | 2022-05-31 | Testing tool for tensile strength and modulus between layers of composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217654904U true CN217654904U (en) | 2022-10-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221342784.2U Active CN217654904U (en) | 2022-05-31 | 2022-05-31 | Testing tool for tensile strength and modulus between layers of composite material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217654904U (en) |
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2022
- 2022-05-31 CN CN202221342784.2U patent/CN217654904U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231120 Address after: 315000 Wanhua village, Hengjie Town, Haishu District, Ningbo City, Zhejiang Province Patentee after: Ningbo Yongxiang Testing Technology Co.,Ltd. Address before: 315000 Xuwang village, Hengjie Town, Haishu District, Ningbo City, Zhejiang Province Patentee before: NINGBO SHUXIANG NEW MATERIAL Co.,Ltd. |