CN109490090A - A kind of rubber material elasticity modulus measuring device and measuring method - Google Patents
A kind of rubber material elasticity modulus measuring device and measuring method Download PDFInfo
- Publication number
- CN109490090A CN109490090A CN201811378826.6A CN201811378826A CN109490090A CN 109490090 A CN109490090 A CN 109490090A CN 201811378826 A CN201811378826 A CN 201811378826A CN 109490090 A CN109490090 A CN 109490090A
- Authority
- CN
- China
- Prior art keywords
- test specimen
- amesdial
- elasticity modulus
- plate
- rubber material
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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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/14—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by dead weight, e.g. pendulum; generated by springs tension
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
- G01N2203/0033—Weight
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0075—Strain-stress relations or elastic constants
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
Abstract
A kind of rubber material elasticity modulus measuring device, including pedestal, amesdial and plate；The both ends of plate lower surface are fixedly installed amesdial；Test specimen is set on the base, and plate is placed on test specimen upper surface, and the lower end of amesdial is against on pedestal.The two can be fixed together by plate and amesdial of the present invention well with nut, and be convenient to mount and dismount；The application that pressure is carried out using counterweight, because counterweight is standard component, the pressure applied can be calculated soon, and then the stress of rubber test piece can also be calculated soon, this just greatly enhances computational efficiency.
Description
Technical field
The invention belongs to elasticity modulus measuring device technical field, in particular to a kind of rubber material elasticity modulus measurement dress
It sets and measurement method.
Background technique
The elasticity modulus of rubber is the index measured rubber material and flexible deformation complexity occurs, rubber modulus
It is worth bigger, then for explanation so that rubber material stress that certain flexible deformation occurs is also bigger, i.e. the rigidity of rubber material is bigger.Then
The flexible deformation that it occurs under the action of certain stress is smaller, it is seen then that rubber modulus is that reflection rubber material resists bullet
The index of property deformability.
Rubber is a kind of engineering material, can be made into diversified rubber product, uses very extensive, physical property pair
The service performance of product is of crucial importance.Rubber has the ability for bearing large elastic deformation, but elasticity modulus is small.Meeting in rubber industry
Distinguish rubber with hardness, by hardness as the elasticity modulus under small deformation come using.However, between hardness and elasticity modulus only
It is a kind of approximate mathematical relationship, and true elasticity modulus cannot be obtained, therefore, accurately measures rubber material elasticity modulus
Seem particularly significant.
The method of measurement elasticity modulus has much at present, for example, by using computer system tensile testing machine as measuring device,
Computer will show data and the charts such as drawing/pressure, stress and strain when rubber is stretched/compresses, and the ratio between stress and strain is i.e.
For the elasticity modulus of rubber.But this method needs the computer system for using profession to operate, it is desirable that experiment condition it is relatively high,
And device occupied space is big, is not easy to mobile use.
Summary of the invention
It is above-mentioned to solve the purpose of the present invention is to provide a kind of rubber material elasticity modulus measuring device and measuring method
Problem.
To achieve the above object, the invention adopts the following technical scheme:
A kind of rubber material elasticity modulus measuring device, including pedestal, amesdial and plate；The both ends of plate lower surface are equal
It is fixedly installed amesdial；Test specimen is set on the base, and plate is placed on test specimen upper surface, and the lower end of amesdial is against pedestal
On.
Further, test specimen mounting table is provided on pedestal, test specimen is placed on test specimen mounting table, test specimen mounting table two sides
The identical boss of height there are two being symmetrical arranged on pedestal, the lower end of amesdial is against on boss.
Further, the position that plate is provided with amesdial is provided with through-hole, and the top of amesdial passes through through-hole, passes through spiral shell
Mother is fixedly connected on plate.
Further, a kind of measurement method of rubber material elasticity modulus measuring device, based on described in above-mentioned any one
A kind of rubber material elasticity modulus measuring device, comprising the following steps:
Step 1, test specimen is placed on test specimen mounting table, then the platform for being fixed with amesdial is placed on test specimen,
It is against the lower end of amesdial on boss；Ensure test specimen center being equidistant to two amesdials；
Step 2, it returns to zero to amesdial, counterweight is then placed on platform, successively increase the quantity of counterweight, record weight
Code weight；Quality m be it is determining, the power F being applied on test specimen can be calculated by formula F=mg；
Step 3, the stress cross section of test specimen is entire upper surface, so the cross-sectional area of stress is A=π r2, pass through
Formula σ=F/A can calculate stress σ of the test specimen under the effect of power that counterweight applies suffered by it；Test specimen is under force
It can deform, deflection ε is read by amesdial；
Step 4, the elastic modulus E of test specimen is calculated by E=σ/ε.
Compared with prior art, the present invention has following technical effect:
Pedestal of the present invention is equivalent to testing stand, and for placing other equipment, its volume is smaller, and facilitates shifting
It is dynamic, user has been greatly facilitated, transport, maintenance cost are reduced；The plate and amesdial nut can well by
The two is fixed together, and is convenient to mount and dismount；The application that pressure is carried out using counterweight is applied because counterweight is standard component
Pressure can soon calculate, and then the stress of rubber test piece can also be calculated soon, this is just largely
On improve computational efficiency.
Test specimen mounting table of the present invention is mainly used to place rubber test piece, it can be moved freely on pedestal,
The experiment condition asked is not high, reduces difficulty to operator；The boss is supported to one, amesdial, this is being met
Under the conditions of, boss is also can be free-moving on pedestal；
The equipment of the device be all it is more commonly used, calculated compared to the computer system measurement ess-strain using profession
The method of elasticity modulus, this greatly reduces cost, has biggish economic advantages.Also, the operating method of this device is also simple
It is single, it improves work efficiency, and have the advantages that structure is simple, convenient for disassembly and assembly, setting is reasonable, at low cost, easy to remove.
The present invention program is reasonable, and structure is simple, can be realized the measurement of rubber material elasticity modulus.
Detailed description of the invention
Fig. 1 is structure of the invention figure；
Wherein: 3. plate, 4. amesdial, 6. boss, 7. test specimen mounting table, 8. pedestal.
Specific embodiment
Below in conjunction with attached drawing, the present invention is further described:
Referring to Fig. 1, a kind of rubber material elasticity modulus measuring device, including pedestal 8, amesdial 4 and plate 3；Plate
The both ends of lower surface are fixedly installed amesdial 4；Test specimen is arranged on pedestal 8, and plate 3 is placed on test specimen upper surface, and thousand points
The lower end of table 4 is against on pedestal 8.
Test specimen mounting table 7 is provided on pedestal 8, test specimen is placed on test specimen mounting table 7, the pedestal 8 of 7 two sides of test specimen mounting table
The identical boss 6 of height there are two being above symmetrical arranged, the lower end of amesdial 4 is against on boss 6.
The position that plate 3 is provided with amesdial 4 is provided with through-hole, and the top of amesdial 4 passes through through-hole, fixed by nut
It is connected on plate 3.
A kind of measurement method of rubber material elasticity modulus measuring device, comprising the following steps:
Step 1, test specimen is placed on test specimen mounting table, then the platform for being fixed with amesdial is placed on test specimen,
It is against the lower end of amesdial on boss；Ensure test specimen center being equidistant to two amesdials；
Step 2, it returns to zero to amesdial, counterweight is then placed on platform, successively increase the quantity of counterweight, record weight
Code weight；Quality m be it is determining, the power F being applied on test specimen can be calculated by formula F=mg；
Step 3, the stress cross section of test specimen is entire upper surface, so the cross-sectional area of stress is A=π r2, pass through
Formula σ=F/A can calculate stress σ of the test specimen under the effect of power that counterweight applies suffered by it；Test specimen is under force
It can deform, deflection ε is read by amesdial；
Step 4, the elastic modulus E of test specimen is calculated by E=σ/ε.
The device is mainly according to formula E=σ/ε=(the F/A)/ε Method of Spreading Design for calculating elasticity modulus.In hard material
The center of pedestal 8 place test specimen mounting table 7, two pieces of boss 6 (support amesdial) are symmetrically placed on test specimen mounting table 7
Two sides can then be adjusted according to 4 location-appropriate of amesdial.GB/T7759-1996 vulcanized rubber test specimen is placed on hard material
In rectangular boss 7, then the plate 3 for fixing amesdial is pressed in rubber test piece, adjustment good position keeps balancing by it.Its
Middle plate is not enough to cause the large deformation of test specimen to the power that rubber test piece applies, we can by amesdial returned to zero come
Ensure the accuracy measured, therefore two amesdials are carried out zeroing processing before measurement.So far, measuring device is just carried out
The preparation of measurement places a counterweight (500g) on the position that plate is pressing against rubber test piece later, can successively increase counterweight
Quantity, record multi-group data, the elasticity modulus of the rubber material being calculated in this way can be more accurate.Counterweight is standard
Part, its quality m be it is determining, the power F being applied on test specimen can be calculated by formula F=mg.Plate is to be pressed in again
On the upper surface of entire rubber test piece (upper surface is circle), so counterweight pressure applied acts on entire test specimen, then try
The stress cross section of part is entire upper surface, so the cross-sectional area of stress is A=π r2, can be counted by formula σ=F/A
Calculate stress σ of the test specimen in the case where power that counterweight applies acts on suffered by it.Test specimen can deform under force, deformation
It measures ε to read by amesdial, it is desirable that the error in reading of two amesdials is no more than the 5% of any amesdial reading.Finally, passing through
E=σ/ε can calculate the elastic modulus E of test specimen.Added counterweight quantity is different, and strain σ suffered by rubber test piece is different,
The deflection ε of rubber test piece is different, and the present apparatus can mostly survey several groups of data, rubber calculated in this way by increasing and decreasing the quantity of counterweight
The elasticity modulus of glue material is closer to true value, also, the part of the present apparatus can all dismount, and occupy little space, carrying side
Just.
Claims (4)
1. a kind of rubber material elasticity modulus measuring device, which is characterized in that including pedestal (8), amesdial (4) and plate (3)；
The both ends of plate lower surface are fixedly installed amesdial (4)；Test specimen is arranged on pedestal (8), and plate (3) is placed on test specimen
Surface, the lower end of amesdial (4) are against on pedestal (8).
2. a kind of rubber material elasticity modulus measuring device according to claim 1, which is characterized in that pedestal is set on (8)
It is equipped with test specimen mounting table (7), test specimen is placed on test specimen mounting table (7), is symmetrically set on the pedestal (8) of test specimen mounting table (7) two sides
The identical boss of height (6) there are two setting, the lower end of amesdial (4) is against on boss (6).
3. a kind of rubber material elasticity modulus measuring device according to claim 1, which is characterized in that plate (3) setting
There is the position of amesdial (4) to be provided with through-hole, the top of amesdial (4) passes through through-hole, is fixedly connected on plate (3) by nut
On.
4. a kind of measurement method of rubber material elasticity modulus measuring device, which is characterized in that based in claims 1 to 3
A kind of rubber material elasticity modulus measuring device described in meaning one, comprising the following steps:
Step 1, test specimen is placed on test specimen mounting table, then the platform for being fixed with amesdial is placed on test specimen, makes thousand
The lower end of table is divided to be against on boss；Ensure test specimen center being equidistant to two amesdials；
Step 2, it returns to zero to amesdial, counterweight is then placed on platform, successively increase the quantity of counterweight, record counterweight weight
Amount；Quality m be it is determining, the power F being applied on test specimen can be calculated by formula F=mg；
Step 3, the stress cross section of test specimen is entire upper surface, so the cross-sectional area of stress is A=π r2, pass through formula σ
=F/A can calculate stress σ of the test specimen under the effect of power that counterweight applies suffered by it；Test specimen can occur under force
Deformation, deflection ε are read by amesdial；
Step 4, the elastic modulus E of test specimen is calculated by E=σ/ε.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811378826.6A CN109490090A (en) | 2018-11-19 | 2018-11-19 | A kind of rubber material elasticity modulus measuring device and measuring method |
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|---|---|---|---|
| CN201811378826.6A CN109490090A (en) | 2018-11-19 | 2018-11-19 | A kind of rubber material elasticity modulus measuring device and measuring method |
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| CN109490090A true CN109490090A (en) | 2019-03-19 |
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| CN201811378826.6A Pending CN109490090A (en) | 2018-11-19 | 2018-11-19 | A kind of rubber material elasticity modulus measuring device and measuring method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827539A (en) * | 2019-04-26 | 2019-05-31 | 中国计量科学研究院 | It is a kind of for straining the fixture of meter calibrating |
| CN111965060A (en) * | 2020-08-03 | 2020-11-20 | 河海大学 | Press-in type on-site modulus of resilience measuring device |
| CN113533045A (en) * | 2021-07-09 | 2021-10-22 | 天津大学 | Device and method for measuring volume modulus of soft material |
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| CN108426773A (en) * | 2018-04-26 | 2018-08-21 | 中铁十六局集团第二工程有限公司 | Concrete static(al) compression elasticity modulus test automatic acquisition device, system and method |
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Patent Citations (10)
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| JP2009036600A (en) * | 2007-07-31 | 2009-02-19 | Kurosaki Harima Corp | Elastic modulus measuring method and instrument, and program |
| CN101639427A (en) * | 2009-07-31 | 2010-02-03 | 四川大学 | Young modulus of elasticity tester of capacitance-grid type digital dial gauge |
| CN102636394A (en) * | 2012-05-08 | 2012-08-15 | 中国建筑材料科学研究总院 | Compressive stress loading and deformation measurement device and measurement method for deformation of test piece under compressive stress |
| CN203259423U (en) * | 2013-05-28 | 2013-10-30 | 山西省交通科学研究院 | Geotechnical resilience modulus measure apparatus |
| CN204964302U (en) * | 2015-09-30 | 2016-01-13 | 江南阀门有限公司 | Flexible material compression stress and strain digital display formula testing arrangement |
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| CN206411116U (en) * | 2016-12-20 | 2017-08-15 | 河海大学 | A kind of contact shrinkage test test device of convenient fixed amesdial |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827539A (en) * | 2019-04-26 | 2019-05-31 | 中国计量科学研究院 | It is a kind of for straining the fixture of meter calibrating |
| CN111965060A (en) * | 2020-08-03 | 2020-11-20 | 河海大学 | Press-in type on-site modulus of resilience measuring device |
| CN113533045A (en) * | 2021-07-09 | 2021-10-22 | 天津大学 | Device and method for measuring volume modulus of soft material |
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