CN205749126U - Extensometer method measure apparatus of youngs modulus - Google Patents
Extensometer method measure apparatus of youngs modulus Download PDFInfo
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- CN205749126U CN205749126U CN201620666970.XU CN201620666970U CN205749126U CN 205749126 U CN205749126 U CN 205749126U CN 201620666970 U CN201620666970 U CN 201620666970U CN 205749126 U CN205749126 U CN 205749126U
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- extensometer
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Abstract
Extensometer method measure apparatus of youngs modulus belongs to teaching and experiment equipment field, including support, upper grip, lower chuck, extensometer, pulling force sensor and afterburning handwheel；Support is mesh type structure；Upper grip is arranged on the first crossbeam of support；Lower chuck is arranged on the second cross beam of support；Afterburning handwheel is arranged on the 3rd crossbeam of support；On the tested tinsel that extensometer is arranged between the first crossbeam of support and second cross beam；Pulling force sensor is arranged on the connector between the second cross beam of support and the 3rd crossbeam；Tested two ends wiry are separately fixed in upper grip and lower chuck；The upper end of pulling force sensor is connected with lower chuck, and lower end is connected with afterburning handwheel；Pulling force sensor is executed downward power by afterburning handwheel, and pulling force sensor measures tested tinsel stress size, and extensometer measures tested elongation size wiry.This instrument uses the design of portal frame formula, eliminates optical lever and length-measured telescope, it is simple to operation, and technical merit is advanced, novel in design.
Description
Technical field
This utility model belongs to teaching and experiment equipment field, is specifically related to a kind of extensometer method measure apparatus of youngs modulus.
Background technology
Young's modulus, it is along longitudinal elastic modelling quantity, is also the noun in the mechanics of materials.According to Hooke's law, at thing
In the elastic limit of body, stress and strain is directly proportional, and ratio is referred to as the Young's modulus of material, and it is characterize material character one
Individual physical quantity, is only dependent upon the physical property of material itself.The size mark of the Young's modulus rigidity of material, Young's modulus is more
Greatly, it is less susceptible to deform upon.
Static method is taked in the detection of existing Young's modulus mostly, and static method refers to apply a constant bending on sample should
Power, measures its elastic bending amount of deflection, or applies constant stretching (or compression) stress on sample, measure its elastic deformation
Amount；Or calculate elastic modelling quantity according to stress and strain.Static method uses mostly optical lever and telescope measure Young's modulus, lack
Point is that sample dosage is big, and instrument volume is big, and accuracy is low, it is impossible to replication.
Utility model content
In order to solve problems of the prior art, this utility model provides a kind of extensometer method Young's modulus and measures
Instrument, this analyzer overcomes in prior art, it is necessary to use optical lever and telescopical complex device, the shortcomings such as accuracy is low.
The technical scheme that this utility model solution technical problem is used is as follows:
Extensometer method measure apparatus of youngs modulus, this analyzer includes support, upper grip, lower chuck, extensometer, pull sensing
Device and force application apparatus；Described support is mesh type structure；Upper grip is arranged on the first crossbeam of described support；Lower chuck is arranged on
On the second cross beam of described support；Force application apparatus is arranged on the 3rd crossbeam of described support；Tested two ends wiry are respectively
It is fixed in upper grip and lower chuck；Extensometer is arranged on tested tinsel；The upper end of pulling force sensor is connected with lower chuck,
Lower end is connected with force application apparatus；Pulling force sensor is executed downward power by force application apparatus, and pulling force sensor is measured tested tinsel and is subject to
Power size, extensometer measures tested elongation size wiry.
The beneficial effects of the utility model are: this apparatus subject structure uses the design of portal frame formula, eliminates traditional
Optical lever and the big parts of length-measured telescope two, it is simple to operation, technical merit is advanced, novel in design, domestically leading.
Accompanying drawing explanation
Fig. 1 this utility model extensometer method measure apparatus of youngs modulus front view.
Fig. 2 this utility model extensometer method measure apparatus of youngs modulus main frame and digital display represent intention.
In figure: 1, upper grip, 2, tested tinsel, 3, support, 4, lower chuck, 5, second cross beam, 6, afterburning handwheel, 7, can
Adjust footing, 8, base platform, the 9, the 3rd crossbeam, 10, pulling force sensor, 11, first crossbeam, 12, extensometer 13, digital display meter.
Detailed description of the invention
With embodiment, this utility model is described in further details below in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, extensometer method measure apparatus of youngs modulus, this analyzer includes support 3, upper grip 1, lower folder
4, extensometer 13, pulling force sensor 10 and afterburning handwheel 6；Described support 3 is mesh type structure；Upper grip 1 is arranged on described
On the first crossbeam 11 of frame 3；Lower chuck 4 is arranged on the second cross beam 5 of described support 3；Afterburning handwheel 6 is arranged on described support
On 3rd crossbeam 9 of 3；The two ends of tested tinsel 2 are separately fixed in upper grip 1 and lower chuck 4；Extensometer 13 is arranged on institute
State on the tested tinsel 2 between the first crossbeam 11 of support 3 and second cross beam 5；The upper end of pulling force sensor 10 is with lower chuck 4 even
Connecing, lower end is connected with afterburning handwheel 6；Adjustable bottom feet 7 is installed on the base platform 8 of support 3, whether adjusts measure apparatus of youngs modulus
In the horizontal plane.Rotating afterburning handwheel 6, rotate along bolt, bolt moves downward, and pulling force sensor 10 is applied downward power,
Tested tinsel 2 produces deformation, and now, pulling force sensor 10 measures the stress size of tested tinsel 2, and extensometer 13 measures quilt
Survey the elongation size of tinsel 2.Measurement data is passed through data line transfer to digital display meter by pulling force sensor 10 and extensometer 13
On, digital display meter is calculated the Young's modulus of tested tinsel 2 by the computing formula E=F L/S Δ L of Young's modulus；Wherein F
For the value of thrust of tested tinsel 2, L is the extensometer gage length value of tested tinsel 2, the cross section product value of the tested tinsel of S 2,
Δ L is the deformation values of the extensometer of tested tinsel 2.
Important technological parameters of the present utility model:
1, maximum pull (N): 30
2, pulling force display resolution value (N): 0.001
3, extensometer gage length (mm): 100
Extensometer range (mm): 5
4, extensometer deformation display resolution value (mm): 0.001
5, steel wire (mm): L=400 Φ=0.50
Steel wire (mm): L=400 Φ=0.80.
Claims (2)
1. extensometer method measure apparatus of youngs modulus, it is characterised in that this analyzer includes support, upper grip, lower chuck, extends
Meter, pulling force sensor and force application apparatus；Described support is mesh type structure；Upper grip is arranged on the first crossbeam of described support；
Lower chuck is arranged on the second cross beam of described support；Force application apparatus is arranged on the 3rd crossbeam of described support；Tested metal
The two ends of silk are separately fixed in upper grip and lower chuck；Extensometer is arranged on tested tinsel；The upper end of pulling force sensor
Being connected with lower chuck, lower end is connected with force application apparatus；Pulling force sensor is executed downward power by force application apparatus, and pulling force sensor is measured
Tested tinsel stress size, extensometer measures tested elongation size wiry.
Extensometer method measure apparatus of youngs modulus the most according to claim 1, it is characterised in that this analyzer also includes digital display
Table；The output signal of described extensometer and pulling force sensor is transferred on digital display meter, and digital display meter shows tested deformation wiry
Value, value of thrust and value of thrust and the ratio of deformation values.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620666970.XU CN205749126U (en) | 2016-06-29 | 2016-06-29 | Extensometer method measure apparatus of youngs modulus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620666970.XU CN205749126U (en) | 2016-06-29 | 2016-06-29 | Extensometer method measure apparatus of youngs modulus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205749126U true CN205749126U (en) | 2016-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201620666970.XU Active CN205749126U (en) | 2016-06-29 | 2016-06-29 | Extensometer method measure apparatus of youngs modulus |
Country Status (1)
| Country | Link |
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| CN (1) | CN205749126U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110487633A (en) * | 2019-08-29 | 2019-11-22 | 中国石油大学(北京) | Elasticity modulus measurement method and device |
| CN110530745A (en) * | 2019-09-09 | 2019-12-03 | 南昌大学 | The device and method of damage variable is measured in a kind of prediction of Metal Material Fatigue |
-
2016
- 2016-06-29 CN CN201620666970.XU patent/CN205749126U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110487633A (en) * | 2019-08-29 | 2019-11-22 | 中国石油大学(北京) | Elasticity modulus measurement method and device |
| CN110487633B (en) * | 2019-08-29 | 2022-08-26 | 中国石油大学(北京) | Elastic modulus measuring method and device |
| CN110530745A (en) * | 2019-09-09 | 2019-12-03 | 南昌大学 | The device and method of damage variable is measured in a kind of prediction of Metal Material Fatigue |
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