CN106289998A - A kind of easy device of testing young modulus of material - Google Patents
A kind of easy device of testing young modulus of material Download PDFInfo
- Publication number
- CN106289998A CN106289998A CN201610607445.5A CN201610607445A CN106289998A CN 106289998 A CN106289998 A CN 106289998A CN 201610607445 A CN201610607445 A CN 201610607445A CN 106289998 A CN106289998 A CN 106289998A
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- work
- sample
- word beam
- montant
- dial gauge
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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
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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 belongs to mechanical test technical field.The present invention provides a kind of testing young modulus of material easy device, including: on adjustable frames (9), location montant (18), vertical supporting rod (6), initial position balance montant (3), carrying " work " word beam cross bar (16), sample, under clamping head (13), sample, clamping head (14), " work " word beam lever (1) of growing crosswise, weight tray (4), dial gauge (5), dial gauge position bar (7)；" work " word beam lever (1) right-hand member of growing crosswise is L to location montant (18) distance1, left end is L to location montant (18) distance2, L1More than L2；The contraction contact of weight tray (4) bottom contact dial gauge (5), when adding counterweight sample tension, weight tray (4) moves downward the contraction contact motion promoting dial gauge (5), sample tensile elongation is drawn according to lever principle by dial gauge (5) total indicator reading, and sample under tension is derived from by lever principle according to the weight of counterweight.
Description
Technical field
The invention belongs to mechanical test technical field.
Background technology
The Young's modulus prior art measuring material typically all carries out Mechanics Performance Testing to material, and its common equipment is
Electronic universal tester.But it has the disadvantage that one is that its parts all be unable to do without force transducer, dynamometry display instrument, and power passes
Sensor and dynamometry display instrument are the key parts of equipment, and expense cost is the highest, and general electronic universal tester will
Nearly 100,000, if allowing specialty unit carry out testing, testing expenses are too high again；Two is that Young's modulus records result and has time error bigger
(major part result is less than normal, and the analysis of causes is that in drawing process, the displacement of record is bigger than normal, and the power recorded is relatively accurate, causes
Last Young's modulus is less than normal)；Three is that before doing tension test, counterweight to be utilized carries out calibration to equipment every time, cumbersome.
Testing young modulus of material E experiment is that material mechanics course is stated by teaching program must test, new for some
Type research material is also one of the experiment that must do, it is therefore desirable to develops one for material mechanics experiment and is not added by force transducer
Carry, without dynamometry display instrument, simple to operate, the experimental provision of low cost.
Summary of the invention
The purpose of the present invention: propose the easy device of a kind of testing young modulus of material, this test device overcomes existing survey
Determining young modulus of material experimental facilities to be loaded by force transducer, dynamometry display instrument display force value and displacement cause cost
Too high defect, magnitude of load directly loads with counterweight, has more simple to operate, loads accurately, not electricity consumption low cost and other advantages.
Technical scheme:
A kind of easy device of testing young modulus of material, including:
Adjustable frames (9), location montant (18), vertical supporting rod (6), initial position balance montant (3), carrying " work " word
Clamping head (14) under clamping head (13), sample on beam cross bar (16), sample, " work " word beam lever (1) of growing crosswise, weight tray (4),
Dial gauge (5), dial gauge location bar (7)；
Above-mentioned weight tray (4) is fixed on the right-hand member of " work " word beam lever (1) of growing crosswise, and " work " word beam lever (1) of growing crosswise is solid
Being scheduled on the upper end of location montant (18), the left end of " work " word beam lever (1) of growing crosswise connects on sample clamping under clamping head (13), sample
Head (14) is connected on carrying " work " word beam cross bar (16) left end, and carrying " work " word beam cross bar (16) middle part is fixed on location montant (18)
Middle lower end, carrying " work " word beam cross bar (16) right-hand member be fixed on vertical supporting rod (6) upper end；Location montant (18), support are erected
Bar (6) and dial gauge location bar (7) are fixed on adjustable frames (9)；Initial position balance montant (3) is placed at the bottom of scalable
On seat (9), for balancing " work " word beam lever (1) of growing crosswise not testing when, can remove when testing；Above-mentioned grow crosswise
The right-hand member of " work " word beam lever (1) is L to the distance of location montant (18)1, left end is L to the distance of location montant (18)2, its
Middle L1More than L2；The contraction contact of weight tray (4) bottom contact dial gauge (5), when adding counterweight sample tension, counterweight torr
Dish (4) moves downward the contraction contact motion promoting dial gauge (5), and dial gauge (5) total indicator reading is just derived according to lever principle
Can draw the tensile elongation of sample, and the weight of counterweight derive according to lever principle just can draw sample be subject to obtain pulling force
Size.
Advantages of the present invention:
1) what this device utilized is laborsaving lever principle, is not loaded by force transducer, shows without dynamometry display instrument
Force value, force value size directly loads with counterweight, and displacement shows by dial gauge, and the counterweight of light weight i.e. can measure material
Young's modulus.Experiment standard plate and the Young's modulus of bar drawing sample can be measured, only need to change clamping head and can do
To sheet material and the switching tests of bar.
2) design of this device is simple, is simple to manufacture, it is convenient to by test device clamping with unload, have more volume little,
Simple in construction is non-slip, certainty of measurement advantages of higher and can arbitrarily moving, it is only necessary to a smooth operating board i.e. can be pacified
Assembling device, test operation gets up also easy and with low cost.
3) additionally it is important that this device not power consumption, and need not the maintenance of what later stage, economical and practical, have the strongest
College student experiment and engineer applied be worth.
Accompanying drawing illustrates:
Fig. 1 is the front view of testing young modulus of material easy device of the present invention.
Label title in figure: 1. " work " word beam lever 2. of growing crosswise connects grow crosswise " work " word beam lever and the circle of weight tray
Pin 3. initial position balance montant 4. weight tray 5. dial gauge 6. vertical supporting rod 7. dial gauge location bar 8. vertical supporting rod is solid
Determine screw 9. adjustable frames 10. dial gauge location bar to fix screw 11. location and grow crosswise " work " word beam lever and location montant
Alignment pin 12. connects to grow crosswise and fills under clamping head 14. sample on straight pin 13. sample of clamping head on " work " word beam lever and sample
Chuck 15. positions the alignment pin 16. of grow crosswise " work " word beam lever and carrying " work " word beam cross bar and carries " work " word beam cross bar 17. even
Connect lower clamping head and carrying " work " word beam cross bar straight pin 18. position montant 19. position montant fix screw 20. regulation height spiral shell
Nail.
Detailed description of the invention:
Below in conjunction with the accompanying drawings the present invention is described in further detail.
The present invention provides the easy device of a kind of testing young modulus of material, as it is shown in figure 1, include:
Adjustable frames 9, location montant 18, vertical supporting rod 6, initial position balance montant 3, carrying " work " word beam cross bar
16, clamping head 14 under clamping head 13, sample on sample, " work " word beam lever 1 of growing crosswise, weight tray 4, dial gauge 5, dial gauge are fixed
Position bar 7；
Above-mentioned weight tray 4 is fixed on the right-hand member of " work " word beam lever 1 of growing crosswise, and " work " word beam lever 1 of growing crosswise is fixed on fixed
The upper end of position montant 18, the left end of " work " word beam lever 1 of growing crosswise connects on sample clamping head 14 under clamping head 13, sample and is connected on carrying
" work " word beam cross bar 16 left end, is fixed on the middle lower end of location montant 18, carries " work " word in the middle part of carrying " work " word beam cross bar 16
The right-hand member of beam cross bar 16 is fixed on vertical supporting rod 6 upper end；Location montant 18, vertical supporting rod 6 and dial gauge location bar 7 are fixed on
On adjustable frames 9；Initial position balance montant 3 is placed on adjustable frames 9, grows crosswise for balance not testing when
" work " word beam lever 1, can remove when testing；The right-hand member of above-mentioned " work " word beam lever 1 of growing crosswise is to the distance of location montant 18
For L1, left end is L to the distance of location montant 182, wherein L1More than L2；The contraction contacting dial gauge 5 bottom weight tray 4 is touched
Head, when adding counterweight sample tension, weight tray 4 moves downward the contraction contact motion promoting dial gauge 5, and dial gauge 5 refers to
Pin reading is derived according to lever principle and just can be drawn the tensile elongation of sample, and the weight of counterweight is just derived according to lever principle
Can draw sample is subject to obtain pulling force size.
This device to test young modulus of material process: first according to test material, the standard test weight that setup test needs.Its
Secondary test device is placed on more smooth operating board, is fixed and the height adjusting base by base screw, additionally at horizontal stroke
Long " work " word beam lever 1 left end counterweight, after making to take away initial position balance montant 3, whole leverage is in poised state, and
Dial gauge is in zeroing state.After whole device all mixes up, add the same precision of fixed interval weight in turn below at hook
The standard test weight of grade, record loads the registration of Different Weight counterweight dial gauge, and the increment counterweight every time loaded is as small as possible, this
Sample can record several groups of data more, after all preparation counterweights have loaded, then reduces counterweight successively to zero.Enter often organizing data
Row processes, and the weight of counterweight is G1, then according to lever rule sample tension F=G1*L1/L2(due to elastic deformation, angle
What degree occurred varies less, and ignores, and therefore the arm of force is calculated by poised state), the right-hand member of " work " word beam lever of growing crosswise is to fixed
The distance of position montant is L1, left end is L to the distance of location montant2.According to ess-strain derivation formula:ε=ln (1+ Δ L/L0), L0For known sample gauge length initial length, A0The most transversal for known sample
Area, the value of Δ L is transformed according to lever rule by dial gauge reading.Δ L=Δ L1*L1/L2, Δ L1It is dial gauge
Reading, therefore the Young's modulus E=σ/ε of material i.e. can obtain.Several groups of data recorded are obtained its Young's modulus respectively, if
Being that material is in elastic range, the Young's modulus obtained should be almost equal, along with the increase of counterweight, if material enters plasticity
Scope, then the Young's modulus obtained can change a lot.Therefore the Young's modulus of material is recorded almost phase by the most several groups
Deng data average the Young's modulus being material in elastic range.
Embodiment
Fig. 1 is the structural front view of the embodiment of the present invention, and wherein 1 is " work " word beam lever of growing crosswise connecting weight tray,
Weight tray 4 is connected with " work " word beam lever 1 of growing crosswise by straight pin 2, and 3 balance montant for initial position, and dial gauge 5 is fixed on
On the montant 7 of location, location montant 7 is connected with adjustable frames 9 by screw 10, and screw 20 is used for adjusting base height and puts down
Weighing apparatus, vertical supporting rod 6 is connected with adjustable frames 9 by screw 19 by screw 8 and adjustable frames 9, location montant 18, carrying
" work " word beam cross bar 16 is connected with location montant 18 by straight pin 15, and under sample, clamping head 14 is by straight pin 17 and carrying
" work " word beam cross bar 16 connects, and on sample, clamping head 13 is connected with " work " word beam lever 1 of growing crosswise by straight pin 12, straight pin 11
It is used for positioning grow crosswise " work " word beam lever 1 and location montant 18.
Claims (1)
1. the easy device of a testing young modulus of material, it is characterised in that including:
Adjustable frames (9), location montant (18), vertical supporting rod (6), initial position balance montant (3), carrying " work " word beam horizontal stroke
Clamping head (14), " work " word beam lever (1) of growing crosswise, weight tray (4), percentage under clamping head (13), sample on bar (16), sample
Table (5), dial gauge location bar (7)；
Above-mentioned weight tray (4) is fixed on the right-hand member of " work " word beam lever (1) of growing crosswise, and " work " word beam lever (1) of growing crosswise is fixed on
The upper end of location montant (18), the left end of " work " word beam lever (1) of growing crosswise connects on sample clamping head under clamping head (13), sample
(14) being connected on carrying " work " word beam cross bar (16) left end, carrying " work " word beam cross bar (16) middle part is fixed on location montant (18)
Middle lower end, the right-hand member of carrying " work " word beam cross bar (16) is fixed on vertical supporting rod (6) upper end；Location montant (18), vertical supporting rod
(6) and dial gauge location bar (7) be fixed on adjustable frames (9)；Initial position balance montant (3) is placed on adjustable frames
(9), on, for balancing " work " word beam lever (1) of growing crosswise not testing when, can remove when testing；Above-mentioned grow crosswise
The right-hand member of " work " word beam lever (1) is L to the distance of location montant (18)1, left end is L to the distance of location montant (18)2, its
Middle L1More than L2；The contraction contact of weight tray (4) bottom contact dial gauge (5), when adding counterweight sample tension, counterweight torr
Dish (4) moves downward the contraction contact motion promoting dial gauge (5), and dial gauge (5) total indicator reading is just derived according to lever principle
Can draw the tensile elongation of sample, and the weight of counterweight derive according to lever principle just can draw sample be subject to obtain pulling force
Size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610607445.5A CN106289998A (en) | 2016-07-29 | 2016-07-29 | A kind of easy device of testing young modulus of material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610607445.5A CN106289998A (en) | 2016-07-29 | 2016-07-29 | A kind of easy device of testing young modulus of material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106289998A true CN106289998A (en) | 2017-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610607445.5A Pending CN106289998A (en) | 2016-07-29 | 2016-07-29 | A kind of easy device of testing young modulus of material |
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| CN (1) | CN106289998A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109506818A (en) * | 2018-11-19 | 2019-03-22 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of counterweight loading device for Young's modulus measurement |
| CN114112649A (en) * | 2021-12-24 | 2022-03-01 | 华北电力大学（保定） | Pure mechanical transverse load stress testing machine |
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| JPH10170415A (en) * | 1996-12-05 | 1998-06-26 | Mitsubishi Heavy Ind Ltd | Creep test device |
| EP2078948A1 (en) * | 2008-10-25 | 2009-07-15 | Vysoke uceni technicke v Brne Fakulta stavebni Ustav pozemniho stavitelstvi | Material deformation testing stand for the long-term monitoring of deformation characteristics under constant pressure |
| CN201348586Y (en) * | 2009-01-13 | 2009-11-18 | 浙江金凤凰电气有限公司 | Tension tester |
| CN103234836A (en) * | 2013-05-15 | 2013-08-07 | 中国航空动力机械研究所 | Flash ranging loading device |
| CN103592216A (en) * | 2013-09-18 | 2014-02-19 | 浙江吉利控股集团有限公司 | Stress-strain tester of sealing strip and spring as well as test method thereof |
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| CN204202812U (en) * | 2014-11-18 | 2015-03-11 | 南京航空航天大学 | The caliberating device of simple and easy force cell |
| CN204649545U (en) * | 2015-06-11 | 2015-09-16 | 湖南城市学院 | Reflective laser method measures tinsel Young's modules instrument |
-
2016
- 2016-07-29 CN CN201610607445.5A patent/CN106289998A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH10170415A (en) * | 1996-12-05 | 1998-06-26 | Mitsubishi Heavy Ind Ltd | Creep test device |
| EP2078948A1 (en) * | 2008-10-25 | 2009-07-15 | Vysoke uceni technicke v Brne Fakulta stavebni Ustav pozemniho stavitelstvi | Material deformation testing stand for the long-term monitoring of deformation characteristics under constant pressure |
| CN201348586Y (en) * | 2009-01-13 | 2009-11-18 | 浙江金凤凰电气有限公司 | Tension tester |
| CN103234836A (en) * | 2013-05-15 | 2013-08-07 | 中国航空动力机械研究所 | Flash ranging loading device |
| CN103592216A (en) * | 2013-09-18 | 2014-02-19 | 浙江吉利控股集团有限公司 | Stress-strain tester of sealing strip and spring as well as test method thereof |
| CN103822825A (en) * | 2014-03-10 | 2014-05-28 | 北京科技大学 | Automatic timing device for constant load tensile testing equipment |
| CN204202812U (en) * | 2014-11-18 | 2015-03-11 | 南京航空航天大学 | The caliberating device of simple and easy force cell |
| CN204649545U (en) * | 2015-06-11 | 2015-09-16 | 湖南城市学院 | Reflective laser method measures tinsel Young's modules instrument |
Non-Patent Citations (2)
| Title |
|---|
| 刘玉金: "《普通物理实验》", 28 February 2015, 河南大学出版社 * |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109506818A (en) * | 2018-11-19 | 2019-03-22 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of counterweight loading device for Young's modulus measurement |
| CN109506818B (en) * | 2018-11-19 | 2020-12-08 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Weight loading device for Young modulus measurement |
| CN114112649A (en) * | 2021-12-24 | 2022-03-01 | 华北电力大学（保定） | Pure mechanical transverse load stress testing machine |
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Application publication date: 20170104 |