CN217846189U - Ultra-thin glass elastic modulus measuring device - Google Patents
Ultra-thin glass elastic modulus measuring device Download PDFInfo
- Publication number
- CN217846189U CN217846189U CN202221331131.4U CN202221331131U CN217846189U CN 217846189 U CN217846189 U CN 217846189U CN 202221331131 U CN202221331131 U CN 202221331131U CN 217846189 U CN217846189 U CN 217846189U
- Authority
- CN
- China
- Prior art keywords
- elastic modulus
- supporting
- sample
- ultra
- glass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses an elastic modulus measuring device for ultra-thin glass, which comprises a base, a plurality of supporting columns and a supporting table; one end of each of the support columns is movably connected with the base, and the other end of each of the support columns is fixedly connected with the support platform; the supporting platform is made of an elastic material; when the elastic modulus of the ultrathin glass is tested, the ultrathin glass to be tested is arranged in contact with the support table. According to the measuring device, the sample to be measured can move on the base, and the adjustment of the supporting positions during the test of different samples is realized. The supporting platform is made of elastic materials, free vibration of the sample after pulse excitation cannot be influenced by the materials, the influence of the supporting frame on the elastic modulus of the ultrathin glass tested by the pulse excitation method is reduced to the minimum, and the testing accuracy is improved.
Description
Technical Field
The utility model belongs to electron glass test field relates to an ultra-thin glass elasticity modulus measuring device.
Background
The elastic modulus is used as the basic mechanical property of a solid material, and an accurate and quick measurement method of the elastic modulus is very basic and very important. The method for measuring the elastic modulus of the solid material comprises four types, namely a quasi-static method, a low-frequency method, a resonance method and a wave propagation method. The quasi-static method is to determine the Young modulus of the material by measuring the relation between force and deformation under quasi-static loading, and the dynamic method is divided into a low-frequency method, a resonance method and a wave propagation method according to the measurement frequency from low to high. At present, the relatively mature solid elastic modulus test method is a free beam resonance method and a pulse excitation method, and the essence of the two methods is to measure the elastic modulus by exciting the bending vibration of a strip-shaped sample. The free beam resonance method generally adopts two suspension wires to suspend a sample and is used for exciting and receiving vibration signals at the same time, bending vibration or torsional vibration is selected to be excited by changing the suspension mode of the suspension wires, and the test method is easy to cause sample falling and damage to the sample. The pulse excitation method is relatively safer. The pulse excitation method is characterized in that a sample is excited by slight mechanical impact, the first-order bending resonance frequency of the sample can be obtained by carrying out Fourier transform on an acquired time domain signal, the test method has good practicability for the elastic modulus test of the glass with the thickness of more than 1mm, but for the ultrathin glass with the thickness of less than 1mm, the measurement error of the ultrathin glass is larger and larger along with the reduction of the thickness, and even the ultrathin glass is distorted. This is mainly because the thinner the glass thickness is, the less the glass rigidity is, the more difficult the excitation device is to excite the self-oscillation bending frequency of the glass, and the sample support condition has a great influence on the bending frequency of the glass. During the test, the mechanical vibration wave generated by knocking the sample is subjected to strain periodic change in the structure of the sample, so when the ultrathin glass is freely hung down on the supporting frame, a receiver cannot receive the wrong transient natural vibration frequency at a fixed position, and the accuracy of the test result is low. The material of the support frame ensures that the sample generates free vibration after being knocked, and the vibration frequency cannot be obviously influenced. Therefore, the supporting position of the sample and the material of the supporting frame are very important for accurately measuring the elastic modulus of the sample.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model provides an ultra-thin glass elastic modulus measuring device to realize ultra-thin glass elastic modulus's accurate measurement.
The utility model discloses a realize through following technical scheme:
an elastic modulus measuring device for ultrathin glass comprises a base, a plurality of supporting columns and a supporting table;
one end of each support column is movably connected with the base, and the other end of each support column is fixedly connected with the support table; the supporting platform is made of an elastic material;
when the elastic modulus of the ultrathin glass is tested, the ultrathin glass to be tested is arranged in contact with the support table.
Preferably, the supporting column is vertically arranged on the base.
Preferably, the supporting table comprises two supporting rods arranged in parallel, and two ends of each supporting rod are fixedly connected with the supporting columns respectively.
Preferably, the support rod is provided with an edge, and the edge is in contact with the ultrathin glass to be tested.
Preferably, the length of the supporting rod is 1.5-2 times of the width of the ultra-thin glass to be tested.
Preferably, the elastic material is rubber, polystyrene or polyurethane resin.
Preferably, the base comprises two rod bodies which are arranged in parallel, and the plurality of supporting columns are movably connected with the rod bodies.
Preferably, the two opposite sides of the rod body are provided with slide rails, the support columns are provided with clamping portions, and the clamping portions are matched with the slide rails.
Preferably, the side of the two rod bodies far away from each other is provided with a graduated scale.
Preferably, the height of the plurality of support columns is 15-30 mm.
Compared with the prior art, the utility model discloses following profitable technological effect has:
the utility model provides an ultra-thin glass elastic modulus measuring device, the one end and the base swing joint of support column, the other end and a supporting bench fixed connection, then the sample that awaits measuring can remove on the base, because different samples, its support position has difference, and the strutting arrangement who removes has realized the regulation to support the position when different sample tests. In addition. The supporting platform is made of elastic materials, free vibration of the sample after pulse excitation cannot be influenced by the materials, the influence of the supporting frame on the elastic modulus of the ultrathin glass tested by the pulse excitation method is reduced to the minimum, and the testing accuracy is improved.
Furthermore, the support column is vertically arranged on the base, so that the whole measuring device is more stable.
Furthermore, the two support rods are arranged in parallel, so that data acquisition points can be conveniently selected in the elastic modulus testing process.
Furthermore, edges are arranged on the supporting rods, so that the supporting table is in line contact with a sample to be tested, and the sample surface is prevented from being scratched by the supporting table to influence the test result.
Furthermore, the length of each supporting rod is 1.5-2 times of the width of the ultrathin glass to be tested, so that the complete contact between a sample and the supporting table can be effectively ensured, and the stability of placing the sample to be tested is ensured if the sample slightly moves and does not fall off in the testing process.
Furthermore, the elastic material is rubber, polystyrene or polyurethane resin, and the material can effectively reduce the influence of the elastic material on the vibration frequency of the sample.
Further, the base includes two body of rods of parallel arrangement, and the support column sets up perpendicularly on the body of rod, forms the quadrangle between support column and the body of rod, makes each position of testing arrangement stable, reduces the device and rocks the error that leads to the influence of testing.
Further, one side that two body of rod are relative all is provided with the slide rail, be equipped with joint portion on a plurality of support columns for the support column slides on the base more convenient.
Furthermore, one side that two poles of the body kept away from all is provided with the scale, can support the distance between the quick adjustment support frame according to the sample, has realized that the quick location of different samples is placed, has improved measuring efficiency.
Furthermore, the height of the support columns is 15-30 mm, so that different testers can conveniently hold the detector by hands to support the hand and the table top when receiving the resonance frequency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural view of an ultra-thin glass elastic modulus measuring device in the present invention;
fig. 2 is a schematic side view of an apparatus for measuring elastic modulus of ultra-thin glass according to the present invention;
fig. 3 is a schematic diagram of an embodiment of the present invention illustrating a mark of a sample to be tested in testing the elastic modulus of ultra-thin glass.
Wherein: 1. base, 11, the body of rod, 12, scale, 2, support column, 3, a supporting bench, 31, bracing piece, 32, edge, 4, the ultra-thin glass who awaits measuring.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that, if the terms "upper", "lower", "horizontal", "inner" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships usually placed when the products of the present invention are used, the description is merely for convenience of description and simplification, but the indication or suggestion that the device or element to be referred must have a specific direction, be constructed and operated in a specific direction, and therefore, cannot be understood as a limitation to the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
Furthermore, the term "horizontal", if present, does not mean that the component is required to be absolutely horizontal, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, it should be further noted that unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The present invention will be described in further detail with reference to the accompanying drawings:
as shown in fig. 1 and 2, an apparatus for measuring the elastic modulus of ultra-thin glass includes a base 1, a plurality of supporting pillars 2 and a supporting base 3; one end of each of the support columns 2 is movably connected with the base 1, and the other end of each of the support columns is fixedly connected with the support table 3; the height of the support columns 2 is 15-30 mm, so that the operation is convenient. The supporting column 2 is vertically arranged on the base 1. The supporting platform 3 comprises two supporting rods 31 which are arranged in parallel, and two ends of each supporting rod 31 are fixedly connected with the supporting columns 2 respectively. Be equipped with edge 32 on the bracing piece 31, edge 32 sets up with the ultra-thin glass contact that awaits measuring, and this structure can realize bracing piece 31 and the line contact between the sample that awaits measuring, has avoided the supporting bench to cause the fish tail to the sample surface, influences the test result. The length of the supporting rod 31 is 1.5-2 times of the width of the ultrathin glass to be tested, so that the sample can be effectively ensured to be in complete contact with the edge of the supporting table, and if the sample slightly moves in the test process and does not fall off, the placing stability of the sample to be tested is ensured. The support 3 is made of an elastic material, and the elastic material is rubber, polystyrene or polyurethane resin. The elastic material can not influence the free vibration of the sample after being subjected to pulse excitation, the influence of the support frame on the elastic modulus of the ultrathin glass tested by the pulse excitation method is reduced to the minimum, and the testing accuracy is improved. The base 1 comprises two rod bodies 11 arranged in parallel, and a plurality of support columns 2 are movably connected with the rod bodies 11. The relative one side of two body of rod 11 all is provided with the slide rail, is equipped with joint portion on a plurality of support columns 2, and joint portion sets up with the slide rail cooperation. And one sides of the two rod bodies 11 which are far away from each other are provided with a graduated scale 12. When the elastic modulus of the ultra-thin glass is tested, the ultra-thin glass 4 to be tested is arranged in contact with the support table 3.
The utility model discloses a sample support frame for ultra-thin glass elasticity modulus test comprises track base and the sample support column that has the scale. The support column is movable on a graduated track to support samples of different sizes in their fixed positions. The support column sets up for fixed connection with the brace table, and the brace table material is for having elastic material, like rubber, polystyrene foam board, polyurethane resin etc. and this type of material can not influence the free vibration of sample after receiving pulse excitation, falls to the minimum with the support frame to pulse excitation method test ultra-thin glass elastic modulus's influence, has improved the accuracy of test. Preferably, the support platform is in line contact with the sample, and the line contact does not scratch the surface of the sample.
The utility model discloses an in the embodiment adopt the utility model discloses an elasticity modulus to ultra-thin glass tests in the experiment, specifically does:
for a strip sample, the mathematical model for testing the elastic modulus of the ultrathin glass by a pulse excitation method is as follows:
E＝0.9465(m/b)(L 3 /t 3 )f f 2 [1+6.585(t 2 /L 2 )]
wherein E is the elastic modulus of the sample and has a unit of Pa; b, t and L are respectively the width, thickness and length of the strip sample, and the unit is mm; f. of f The first-order bending resonance frequency of the strip-shaped sample is in Hz; m is the mass of the sample in g.
The length, width and thickness of the sample can be accurately measured by a two-dimensional measuring device, the mass can be accurately measured by an electronic balance with the accuracy of 0.0001, and the first-order bending resonance frequency is a frequency signal received at a specific position after the sample is excited at a fixed position. For an ultrathin glass sample, the resonance frequency is difficult to obtain after knocking, the influence of the hardness and the supporting position of the material of the supporting frame on the accuracy of the test is large, and the hardness and the supporting position of the material of the supporting frame are very critical for obtaining the accurate resonance frequency more conveniently and stably.
The steps for testing the elastic modulus of the ultrathin glass are as follows:
s1: accurately testing the length L, the width b and the thickness t of a sample by using quadratic element equipment, and accurately weighing the weight m of the sample by using a high-precision electronic balance; and the samples 0.224L, 0.5L and 0.776L were marked with straight lines parallel to the width direction of the sample, and designated as L 1 、L 2 、L 3 Parallel to the length of the sample at 0.5bLinear marking, noted b 1 。L 1 And b 1 The intersection point of (A) and (L) is described as 2 And b 1 The intersection point of (a) is marked as B, according to a method for testing the elastic modulus by a pulse excitation method, the excitation point is a point B, and the signal receiving point is a point A, as shown in FIG. 3;
s2: calculating the distance W = L-2 x 0.224L =0.552L between the two supporting positions of the sample according to the length L of the sample; then adjusting the distance between the two groups of support columns to be W on the sample support frame; placing the sample on a support table with two sets of support posts aligned with L 1 And L 3 A wire;
s3: receiving a first order flexural resonance frequency f of the sample using an elastic modulus measuring instrument f (ii) a The modulus of elasticity E of the sample is then calculated according to the formula.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to 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 (10)
1. The device for measuring the elastic modulus of the ultrathin glass is characterized by comprising a base (1), a plurality of supporting columns (2) and a supporting table (3);
one end of each support column (2) is movably connected with the base (1), and the other end of each support column is fixedly connected with the support table (3); the supporting platform (3) is made of an elastic material;
when the elastic modulus of the ultrathin glass is tested, the ultrathin glass (4) to be tested is arranged in contact with the support table (3).
2. The ultra-thin glass elastic modulus measuring device of claim 1, wherein the supporting column (2) is vertically arranged on the base (1).
3. The device for measuring the elastic modulus of the ultrathin glass as claimed in claim 2, wherein the supporting table (3) comprises two supporting rods (31) which are arranged in parallel, and two ends of each supporting rod (31) are respectively fixedly connected with the supporting column (2).
4. The device for measuring the elastic modulus of the ultrathin glass as claimed in claim 3, wherein the supporting rod (31) is provided with an edge (32), and the edge (32) is arranged in contact with the ultrathin glass to be tested.
5. The device for measuring the elastic modulus of the ultra-thin glass as claimed in claim 3, wherein the length of the support rod (31) is 1.5 to 2 times the width of the ultra-thin glass to be tested.
6. An apparatus as claimed in claim 1, wherein the elastic material is rubber, polystyrene or polyurethane resin.
7. The device for measuring the elastic modulus of ultrathin glass as claimed in claim 1, wherein the base (1) comprises two rods (11) arranged in parallel, and the plurality of supporting columns (2) are movably connected with the rods (11).
8. The device for measuring the elastic modulus of ultrathin glass as claimed in claim 7, wherein the two opposite sides of the two rods (11) are provided with slide rails, and the supporting columns (2) are provided with clamping parts which are matched with the slide rails.
9. The device for measuring the elastic modulus of ultra-thin glass as claimed in claim 7, wherein the two rod bodies (11) are provided with a graduated scale (12) on the sides far away from each other.
10. The ultra-thin glass elastic modulus measuring device of claim 1, wherein the height of the plurality of supporting columns (2) is 15-30 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221331131.4U CN217846189U (en) | 2022-05-30 | 2022-05-30 | Ultra-thin glass elastic modulus measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221331131.4U CN217846189U (en) | 2022-05-30 | 2022-05-30 | Ultra-thin glass elastic modulus measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217846189U true CN217846189U (en) | 2022-11-18 |
Family
ID=84021196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221331131.4U Active CN217846189U (en) | 2022-05-30 | 2022-05-30 | Ultra-thin glass elastic modulus measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217846189U (en) |
-
2022
- 2022-05-30 CN CN202221331131.4U patent/CN217846189U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101718656B (en) | Method for testing Young modulus | |
| CN207717524U (en) | A kind of concrete Intensity of Breaking Tester | |
| CN202177548U (en) | Young modulus instrument facilitating measuring length of to-be-detected metal wire | |
| CN209247819U (en) | It is a kind of for calibrating the impact test apparatus of acceleration transducer | |
| CN201983737U (en) | Brake disc thickness difference detection tool | |
| CN213714183U (en) | Verticality detection device and measuring instrument | |
| CN113108669A (en) | Portable ground crack measuring device | |
| CN217846189U (en) | Ultra-thin glass elastic modulus measuring device | |
| CN201335794Y (en) | Measuring instrument of Young modulus | |
| CN208076313U (en) | A kind of mid-span deflection measuring device for beams of concrete creep test | |
| CN109827869A (en) | A kind of device and method measuring sticky fluid density | |
| CN103284406B (en) | Insole backpart longitudinal stiffness testing method | |
| CN200955946Y (en) | Inner width detecting device | |
| CN201527425U (en) | Test device for measuring concrete contraction | |
| CN111412883A (en) | Method for testing shear deformation of bridge support | |
| CN201811784U (en) | Tester for testing resonance frequency of concrete | |
| CN216847204U (en) | Experimental positioner of dynamic elasticity modulus | |
| CN201122140Y (en) | Yang elasticity modulus measurer | |
| CN214953240U (en) | Device for measuring elastic modulus of excited vibration | |
| CN208902720U (en) | A kind of vertical contact method concrete self-shrinkage automatic testing equipment | |
| CN214199899U (en) | Integrated measuring equipment for size and quality of paper diaper | |
| CN212721369U (en) | Thickness gauge auxiliary measuring device | |
| CN211825543U (en) | Solid density measuring device | |
| CN109187232A (en) | A kind of test method for testing glass plate elasticity modulus and modulus of shearing | |
| CN211576510U (en) | Strength test fixture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |