CN108507877A - A kind of test method of metal material mechanics performance - Google Patents
A kind of test method of metal material mechanics performance Download PDFInfo
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- CN108507877A CN108507877A CN201810312733.7A CN201810312733A CN108507877A CN 108507877 A CN108507877 A CN 108507877A CN 201810312733 A CN201810312733 A CN 201810312733A CN 108507877 A CN108507877 A CN 108507877A
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- metal wire
- wire material
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- mechanics performance
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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
-
- 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
- G01N2203/005—Electromagnetic means
-
- 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
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0067—Fracture or rupture
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- 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 discloses a kind of test methods of metal material mechanics performance, include the following steps：S1, materials；S2, measurement；S3, experiment；S4, calculating；S5, it repeats to test and analyze.The present invention is compared with conventional metal material mechanics performance test methods, effect is more preferable in terms of the test of the elastic property of metal to be measured, coefficient of elasticity of the metal to be measured under condition of different temperatures can be accurately measured, to reflect the elastic property of metal material, for metal material mechanics property analysis provide it is greatly convenient.
Description
Technical field
The invention belongs to material mechanical performance test method technical fields, more specifically more particularly to a kind of metal material
Expect the test method of mechanical property.
Background technology
The mechanical property of metal material refers to metal material in varying environment（Temperature, medium, humidity）Under, it bears various outer
Load lotus（Stretching, compression, bending, torsion, impact, alternate stress etc.）When the mechanical characteristics that are shown.The mechanical property of metal
The certain ability of metal material resistance to deformation or destruction under force effect outside various forms can be reflected.Any machine components or work
Tool, in use, will often be acted on by various forms external force.Such as the cable wire on crane, by suspension pulling force
Effect;Connecting rod on diesel engine, in passing power, the not only effect of under tension, but also acted on by impact force;
Axial workpiece will be by moment of flexure, the effect etc. of torsion.This requires metal material must have one kind bear mechanical lotus without
More than license deformation or non-destructive ability.This ability is exactly the mechanical property of material.The mechanical property of metal refers to metal
Material resists the ability of various plus loads, including:Elasticity and rigidity, intensity, plasticity, hardness, impact toughness, fracture are tough
Degree and fatigue strength etc., they are to weigh the extremely important index of material property.Therefore, to the test of metal material mechanics performance
It has great significance in manufacturing field.
Invention content
The purpose of the present invention is to provide a kind of test methods of metal material mechanics performance, to solve above-mentioned background technology
The problem of middle proposition.
To achieve the above object, the present invention provides the following technical solutions：
A kind of test method of metal material mechanics performance, includes the following steps：
S1, materials：To be measured metal wire material of the segment length between 10-20cm is taken, metal wire material surface cleaning to be measured is clean,
It avoids being influenced by certain metal material surface impurity that are attached in measurement process；
S2, measurement：The diameter for going out metal wire material to be measured with miking, is denoted as D, goes out gold to be measured with vernier caliper measurement
Belong to the effective length L of silk material；
S3, experiment：One end of metal wire material to be measured is fixed, the other end is connected on the pull rod driven by servo motor, and is remembered
The initial position at metal wire material both ends to be measured under record, starts servo motor so that and metal wire material to be measured is stretched until fracture,
In drawing process, displacement variable L1 and the force value when metal wire material is pulled off are gone out using displacement sensor and force sensor measuring
F；
S4, calculating：It is (L1/ L) × 100% to calculate metal wire material to be measured and be pulled off the strain stress at moment, and stress σ is 4F/ π D2,
And calculate coefficient of elasticity E=σ/ε；
S5, it repeats to test and analyze：The temperature condition for changing tension test, repeats the above steps, and obtains several groups strain, stress
Data, and according to its situation of change, analysis obtain the coefficient of elasticity E of metal wire material to be measured under different temperatures.
Preferably, the diameter control for the metal wire material to be measured chosen in S2 is between 0.5-0.8mm.
Preferably, the temperature control of metal wire material tension test to be measured can be realized using temperature control box in S5, and temperature
Control carries out uniform value in the range of subzero 20 DEG C to 150 DEG C when choosing temperature.
Preferably, metal wire material tension test number to be measured is no less than 10 times in S5.
Preferably, when being analyzed several groups strain, stress data in S5, different temperatures can be observed using line chart
Under the conditions of metal wire material to be measured Flexible change situation.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention and conventional metal material mechanics performance test
Method is compared, and effect is more preferable in terms of the test of the elastic property of metal to be measured, can accurately measure metal to be measured in difference
Coefficient of elasticity under temperature condition carries to reflect the elastic property of metal material for the mechanics property analysis of metal material
It is greatly convenient to have supplied.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with specific embodiment, to this
Invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.
A kind of test method of metal material mechanics performance, includes the following steps：
S1, materials：To be measured metal wire material of the segment length between 10-20cm is taken, metal wire material surface cleaning to be measured is clean,
It avoids being influenced by certain metal material surface impurity that are attached in measurement process；
S2, measurement：The diameter for going out metal wire material to be measured with miking, is denoted as D, goes out gold to be measured with vernier caliper measurement
Belong to the effective length L of silk material；
S3, experiment：One end of metal wire material to be measured is fixed, the other end is connected on the pull rod driven by servo motor, and is remembered
The initial position at metal wire material both ends to be measured under record, starts servo motor so that and metal wire material to be measured is stretched until fracture,
In drawing process, displacement variable L1 and the force value when metal wire material is pulled off are gone out using displacement sensor and force sensor measuring
F；
S4, calculating：It is (L1/ L) × 100% to calculate metal wire material to be measured and be pulled off the strain stress at moment, and stress σ is 4F/ π D2,
And calculate coefficient of elasticity E=σ/ε；
S5, it repeats to test and analyze：The temperature condition for changing tension test, repeats the above steps, and obtains several groups strain, stress
Data, and according to its situation of change, analysis obtain the coefficient of elasticity E of metal wire material to be measured under different temperatures.
Specifically, the diameter control for the metal wire material to be measured chosen in S2 is between 0.5-0.8mm.
Specifically, the temperature control of metal wire material tension test to be measured can be realized using temperature control box in S5, and temperature
Control carries out uniform value in the range of subzero 20 DEG C to 150 DEG C when choosing temperature.
Specifically, metal wire material tension test number to be measured is no less than 10 times in S5.
Specifically, when being analyzed several groups strain, stress data in S5, different temperatures can be observed using line chart
Under the conditions of metal wire material to be measured Flexible change situation.
The present invention is tested, to gold to be measured compared with conventional metal material mechanics performance test methods by multi-drawing
Belong to the test that material carries out elastic property, and on the basis of physical equation, the elastic property of metal material is carried out rational
Data analysis, to obtain the exact coefficient of elasticity of metal to be measured, measurement result is more accurate, convenient for mechanics of metal to be measured
It further can be studied.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (5)
1. a kind of test method of metal material mechanics performance, which is characterized in that include the following steps：
S1, materials：To be measured metal wire material of the segment length between 10-20cm is taken, metal wire material surface cleaning to be measured is clean,
It avoids being influenced by certain metal material surface impurity that are attached in measurement process；
S2, measurement：The diameter for going out metal wire material to be measured with miking, is denoted as D, goes out gold to be measured with vernier caliper measurement
Belong to the effective length L of silk material；
S3, experiment：One end of metal wire material to be measured is fixed, the other end is connected on the pull rod driven by servo motor, and is remembered
The initial position at metal wire material both ends to be measured under record, starts servo motor so that and metal wire material to be measured is stretched until fracture,
In drawing process, displacement variable L1 and the force value when metal wire material is pulled off are gone out using displacement sensor and force sensor measuring
F；
S4, calculating：It is (L1/ L) × 100% to calculate metal wire material to be measured and be pulled off the strain stress at moment, and stress σ is 4F/ π D2,
And calculate coefficient of elasticity E=σ/ε；
S5, it repeats to test and analyze：The temperature condition for changing tension test, repeats the above steps, and obtains several groups strain, stress
Data, and according to its situation of change, analysis obtain the coefficient of elasticity E of metal wire material to be measured under different temperatures.
2. a kind of test method of metal material mechanics performance according to claim 1, it is characterised in that：It is chosen in S2
The diameter control of metal wire material to be measured is between 0.5-0.8mm.
3. a kind of test method of metal material mechanics performance according to claim 1, it is characterised in that：Gold to be measured in S5
Belonging to the temperature control of silk material tension test can be realized using temperature control box, and temperature control is in subzero 20 DEG C to 150 DEG C of model
In enclosing, uniform value is carried out when choosing temperature.
4. a kind of test method of metal material mechanics performance according to claim 1, it is characterised in that：Gold to be measured in S5
Belong to silk material tension test number to be no less than 10 times.
5. a kind of test method of metal material mechanics performance according to claim 1, it is characterised in that：To several in S5
Group strain, stress data be when being analyzed, and the elasticity of metal wire material to be measured under condition of different temperatures can be observed using line chart
Situation of change.
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| CN201810312733.7A CN108507877A (en) | 2018-04-09 | 2018-04-09 | A kind of test method of metal material mechanics performance |
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Citations (8)
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|---|---|---|---|---|
| CN101608905A (en) * | 2009-07-21 | 2009-12-23 | 清华大学 | A kind of measuring method of little opening displacement of microcrack |
| CN102252908A (en) * | 2011-06-29 | 2011-11-23 | 重庆大学 | Device and method for stretching elastic tissue under simulated physiological condition |
| CN104596845A (en) * | 2014-11-20 | 2015-05-06 | 中国石油天然气集团公司 | Measuring method for real stress-strain curve of metal welding structure |
| CN104792626A (en) * | 2015-04-21 | 2015-07-22 | 东南大学 | Experimental device of FRP rib durability under stretching stress and environment coupling effect |
| CN105928785A (en) * | 2016-04-14 | 2016-09-07 | 大连理工大学 | Metal plate pulling-pressing experiment device in pure mechanical structure form |
| CN106018091A (en) * | 2016-06-29 | 2016-10-12 | 苏州市明大高分子科技材料有限公司 | Method for testing tensile property of material with low elasticity modulus and high surface adhesive capacity |
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2018
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|---|---|---|---|---|
| CN101608905A (en) * | 2009-07-21 | 2009-12-23 | 清华大学 | A kind of measuring method of little opening displacement of microcrack |
| CN102252908A (en) * | 2011-06-29 | 2011-11-23 | 重庆大学 | Device and method for stretching elastic tissue under simulated physiological condition |
| CN104596845A (en) * | 2014-11-20 | 2015-05-06 | 中国石油天然气集团公司 | Measuring method for real stress-strain curve of metal welding structure |
| CN104792626A (en) * | 2015-04-21 | 2015-07-22 | 东南大学 | Experimental device of FRP rib durability under stretching stress and environment coupling effect |
| CN105928785A (en) * | 2016-04-14 | 2016-09-07 | 大连理工大学 | Metal plate pulling-pressing experiment device in pure mechanical structure form |
| CN107305174A (en) * | 2016-04-20 | 2017-10-31 | 中国特种设备检测研究院 | A kind of material stress strains the numerical representation method method and system of constitutive relation |
| CN106018091A (en) * | 2016-06-29 | 2016-10-12 | 苏州市明大高分子科技材料有限公司 | Method for testing tensile property of material with low elasticity modulus and high surface adhesive capacity |
| CN107271279A (en) * | 2017-06-16 | 2017-10-20 | 西南石油大学 | A kind of metal material true stress-true stain method of testing |
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Application publication date: 20180907 |