CN104297061A - Device for determining and identifying tensile fracture mode of textile material - Google Patents
Device for determining and identifying tensile fracture mode of textile material Download PDFInfo
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- CN104297061A CN104297061A CN201410544838.7A CN201410544838A CN104297061A CN 104297061 A CN104297061 A CN 104297061A CN 201410544838 A CN201410544838 A CN 201410544838A CN 104297061 A CN104297061 A CN 104297061A
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- textile material
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- 239000004753 textile Substances 0.000 title claims abstract description 34
- 239000000463 material Substances 0.000 title claims abstract description 33
- 239000000523 sample Substances 0.000 claims abstract description 18
- 238000012545 processing Methods 0.000 claims abstract description 17
- 238000009864 tensile test Methods 0.000 claims abstract description 15
- 238000004080 punching Methods 0.000 claims description 17
- 239000002033 PVDF binder Substances 0.000 claims description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000012360 testing method Methods 0.000 abstract description 5
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 12
- 229920004933 Terylene® Polymers 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- 239000005020 polyethylene terephthalate Substances 0.000 description 5
- 238000010183 spectrum analysis Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 239000002759 woven fabric Substances 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a device for determining and identifying a tensile fracture mode of a textile material. The device comprises a sound emission probe assembly, a signal amplifier, a data acquisition card and a central processing unit, wherein the sound emission probe assembly comprises a sound emission sensor, an upper pressure bearing gasket, a lower pressure bearing gasket, a center penetrating shaft and a shaft sleeve; the sound emission sensor is connected with a force sensor of a universal tensile testing machine in series and is connected with the signal amplifier in series; the signal amplifier is connected with the data acquisition card in series; and the data acquisition card is connected with the central processing unit in series. The device is used for a tensile fracture test of the textile material so that basic mechanics indexes can be obtained, and facture sources under all fracture modes and corresponding acoustic characteristic amounts can be accurately identified; and theoretical foundations are provided for deeply researching a tensile fracture mechanism of the textile material, determining the extreme strength of the textile material and optimizing a manufacturing process of the textile material, and the device has a remarkable application value.
Description
Technical field
The present invention relates to a kind of mensuration and the device identifying textile material fail in tension pattern, belongs to textile material technical field of measurement and test.
Background technology
The tensile property of textile material is the important indicator weighing its physical and mechanical properties.Existing textile material cupping machine is only obtain the basic mechanical such as ultimate strength, elongation at break index from the stress-strain curves of textile sample Tensile Fracture Process, have no way of learning to the various physical datas that different failure modes in process presents, thus the failure mode of None-identified textile material, more cannot infer the mechanical property that this textile material may be potential according to this, cause the optimization means of manufacturing process single, lack the theoretical foundation that related manufacturing process is optimized and revised.
Summary of the invention
For the problems referred to above that prior art exists, the object of this invention is to provide a kind of mensuration and the device identifying textile material fail in tension pattern, the signal characteristic of each pattern of textile material fail in tension is accurately identified by acoustic emission, the microphysics characteristic that practical understanding textile material presents when loading, for the determination of material limits brute force and the optimization of manufacturing process thereof provide theoretical foundation.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of device measuring and identify textile material fail in tension pattern, comprise acoustic emission probe assembly, signal amplifier, data collecting card and central processing unit, described acoustic emission probe assembly comprises calibrate AE sensor, upper pressure-bearing pad, lower pressure-bearing pad, punching axle and axle sleeve, described calibrate AE sensor is arranged between pressure-bearing pad and lower pressure-bearing pad, and upper pressure-bearing pad, calibrate AE sensor and lower pressure-bearing pad are all set on punching axle, the punching axle at upper pressure-bearing pad top is also provided with pretension nut; The punching axle being fixed with pretension nut, upper pressure-bearing pad, calibrate AE sensor and lower pressure-bearing pad is seated in axle sleeve; Described calibrate AE sensor and the force snesor of universal tensile testing machine are connected in series, and are connected in series with signal amplifier simultaneously, and described signal amplifier and data collecting card are connected in series, and described data collecting card and central processing unit are connected in series.
Preferably, being provided with the pin hole A for being fixedly connected with universal tensile testing machine on the top of axle sleeve, being provided with wire hole in the bottom of axle sleeve.
Preferably, the punching axle passing axle sleeve is provided with the pin hole B for being fixedly connected with universal tensile testing machine.
As further preferred version, described pin hole A and pin hole B establishes on the same axis.
Preferably, described calibrate AE sensor selects PVDF piezoelectric film sensor.
The principle of work of device of the present invention is as follows:
Calibrate AE sensor and the whole Tensile Fracture Process of force snesor to Tensile textile material sample carry out live signal sampling; Sampled signal is after signal amplifier amplification or pre-service, send to data collecting card, central processing unit is transferred to after carrying out analog to digital conversion by data collecting card, central processing unit carries out spectrum analysis according to signal processing algorithm, thus under obtaining each failure mode, destroy the acoustic feature parameter in source, know the microphysics characteristic that Tensile textile material presents when loading.
Compared with prior art, the present invention has following beneficial effect:
Device of the present invention is used in textile material fail in tension test, the basic mechanical such as ultimate strength, elongation at break index can not only be obtained from the stress-strain curves of sample Tensile Fracture Process, and can accurately identify and the destruction source known under each failure mode, comprise: frequency, intensity, time of origin and duration acoustic feature amount, can be further investigation textile material tensile break mechanism, determine textile material limit brute force and optimize its manufacturing process to provide theoretical foundation, there is significant using value.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation with the device identifying textile material fail in tension pattern that measures provided by the invention;
Fig. 2 is the cross-sectional view of a kind of acoustic emission probe assembly provided by the invention;
Fig. 3 is the spatial structure decomposing schematic representation of a kind of acoustic emission probe assembly provided by the invention;
Fig. 4 is the pure polyester circular ingot yarn woven fabric tension failure acoustic emission signal and the force signal that gather acquisition in application examples;
Fig. 5 is the two-dimentional time-frequency figure obtained after fibre breakage signal carries out spectrum analysis in the terylene ring spun yarn tension failure acoustic emission signal gathering acquisition in application examples.
In figure: 1, acoustic emission probe assembly; 11, calibrate AE sensor; 12, upper pressure-bearing pad; 13, lower pressure-bearing pad; 14, punching axle; 15, axle sleeve; 16, pretension nut; 17, pin hole A; 18, wire hole; 19, pin hole B; 2, universal tensile testing machine; 21, force snesor; 22, testing machine chuck; 3, textile material sample is tested; 4, signal amplifier; 5, data collecting card; 6, central processing unit.
Embodiment
Below in conjunction with specific embodiments and the drawings, set forth the present invention further.
Embodiment
As shown in Figure 1 to Figure 3: a kind of device with identification textile material fail in tension pattern that measures provided by the invention, comprise: acoustic emission probe assembly 1, signal amplifier 4, data collecting card 5 and central processing unit 6, described acoustic emission probe assembly 1 comprises: calibrate AE sensor 11, upper pressure-bearing pad 12, lower pressure-bearing pad 13, punching axle 14 and axle sleeve 15, described calibrate AE sensor 11 is arranged between pressure-bearing pad 12 and lower pressure-bearing pad 13, and upper pressure-bearing pad 12, calibrate AE sensor 11 and lower pressure-bearing pad 13 are all set on punching axle 14, the punching axle 14 at upper pressure-bearing pad 12 top is also provided with pretension nut 16, the punching axle 14 being fixed with pretension nut 16, upper pressure-bearing pad 12, calibrate AE sensor 11 and lower pressure-bearing pad 13 is seated in axle sleeve 15, described calibrate AE sensor 11 is connected in series with the force snesor 21 of universal tensile testing machine 2, and be connected in series with signal amplifier 4 simultaneously, described signal amplifier 4 is connected in series with data collecting card 5, and described data collecting card 5 is connected in series with central processing unit 6.
The pin hole A 17 for being fixedly connected with universal tensile testing machine 2 is provided with on the top of axle sleeve 15, the punching axle 14 passing axle sleeve 15 is provided with the pin hole B 19 for being fixedly connected with universal tensile testing machine 2, described pin hole A 17 establishes on the same axis with pin hole B 19, by pin hole A 17 and pin hole B 19, axle sleeve 15 and punching axle 14 is fixed on universal tensile testing machine 2.
Wire hole 18 is also provided with, for the extraction of connecting line in the bottom of axle sleeve 15.
The principle of work of device of the present invention is as follows:
The whole Tensile Fracture Process of calibrate AE sensor 11 and force snesor 21 pairs of Tensile textile material samples 3 carries out live signal sampling; Sampled signal to be amplified or after pre-service through signal amplifier 4, send to data collecting card 5, central processing unit 6 is transferred to after carrying out analog to digital conversion by data collecting card 5, central processing unit 6 carries out spectrum analysis according to signal processing algorithm (as: HHT algorithm), thus under obtaining each failure mode, destroy the acoustic feature parameter in source, learn the microphysics characteristic that Tensile textile material presents when loading.
Calibrate AE sensor 1 described in the present invention is PVDF piezoelectric film sensor preferably, because such sensor has high sensitivity, helps the signal characteristic accurately identifying each pattern of textile material fail in tension.
Application examples
Adopt apparatus of the present invention on universal tensile testing machine, carry out the fail in tension test of pure polyester circular ingot yarn woven fabric and terylene ring spun yarn: to start universal tensile testing machine 2, the sampled signal of simultaneous data-collecting card 5 is triggered, calibrate AE sensor 11 and the original force snesor of universal tensile testing machine 21 start to detect the whole Tensile Fracture Process of textile sample, sampled signal is transported to signal amplifier 4 by signal transmission passage and carries out signal amplification, central processing unit 6 is delivered to again after data collecting card 5 analog-to-digital conversion process, by HHT algorithm, spectrum analysis is carried out to sampled signal through central processing unit 6.
Fig. 4 gathers the pure polyester circular ingot yarn woven fabric tension failure acoustic emission signal and force signal that obtain, and Fig. 5 is the two-dimentional time-frequency figure obtained after fibre breakage signal carries out spectrum analysis in the terylene ring spun yarn tension failure acoustic emission signal of collection acquisition.
As seen from Figure 4, pure terylene ring spun yarn Tensile Fracture Process comprises structural phase transition, yarn deformation and yarn breakage three kinds of failure modes, and can obviously make a distinction; As seen from Figure 5, in terylene ring spun yarn tension failure acoustic emission signal, the two-dimentional time-frequency figure of fibre breakage signal describes the variation relation of time and instantaneous frequency quantitatively, also can know that the time of origin that fiber starts to rupture is 0.0153s and 0.0156s simultaneously, and fibre breakage duration 0.1ms.
And existing textile material cupping machine is only obtain the basic mechanical such as ultimate strength, elongation at break index from the stress-strain curves of sample Tensile Fracture Process, have no way of learning to the above-mentioned physical characteristics that different failure modes in process presents.
Visible in sum: to adopt apparatus of the present invention can detect in real time whole Tensile Fracture Process, the basic mechanical such as ultimate strength, elongation at break index can not only be obtained from the stress-strain curves of sample Tensile Fracture Process, and can accurately identify and the destruction source known under each failure mode, comprise: frequency, intensity, time of origin and duration acoustic feature amount, can be further investigation textile material tensile break mechanism, determine textile material limit brute force and optimize its manufacturing process to provide theoretical foundation, there is significant using value.
Finally be necessary described herein: above embodiment is only for being described in more detail technical scheme of the present invention; can not be interpreted as limiting the scope of the invention, some nonessential improvement that those skilled in the art's foregoing according to the present invention is made and adjustment all belong to protection scope of the present invention.
Claims (4)
1. one kind measures and the device identifying textile material fail in tension pattern, it is characterized in that, comprise: acoustic emission probe assembly, signal amplifier, data collecting card and central processing unit, described acoustic emission probe assembly comprises calibrate AE sensor, upper pressure-bearing pad, lower pressure-bearing pad, punching axle and axle sleeve, described calibrate AE sensor is arranged between pressure-bearing pad and lower pressure-bearing pad, and upper pressure-bearing pad, calibrate AE sensor and lower pressure-bearing pad are all set on punching axle, the punching axle at upper pressure-bearing pad top is also provided with pretension nut; The punching axle being fixed with pretension nut, upper pressure-bearing pad, calibrate AE sensor and lower pressure-bearing pad is seated in axle sleeve; Described calibrate AE sensor and the force snesor of universal tensile testing machine are connected in series, and are connected in series with signal amplifier simultaneously, and described signal amplifier and data collecting card are connected in series, and described data collecting card and central processing unit are connected in series.
2. device as claimed in claim 1, is characterized in that: being provided with the pin hole A for being fixedly connected with universal tensile testing machine on the top of axle sleeve, being provided with wire hole in the bottom of axle sleeve.
3. device as claimed in claim 1, is characterized in that: on the punching axle passing axle sleeve, be provided with the pin hole B for being fixedly connected with universal tensile testing machine.
4. device as claimed in claim 1, is characterized in that: described calibrate AE sensor selects PVDF piezoelectric film sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410544838.7A CN104297061B (en) | 2014-10-15 | 2014-10-15 | Device for determining and identifying tensile fracture mode of textile material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410544838.7A CN104297061B (en) | 2014-10-15 | 2014-10-15 | Device for determining and identifying tensile fracture mode of textile material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104297061A true CN104297061A (en) | 2015-01-21 |
| CN104297061B CN104297061B (en) | 2017-01-25 |
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| CN201410544838.7A Expired - Fee Related CN104297061B (en) | 2014-10-15 | 2014-10-15 | Device for determining and identifying tensile fracture mode of textile material |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106596310A (en) * | 2016-11-18 | 2017-04-26 | 上海工程技术大学 | Test system used for analyzing friction performance of coupling materials |
| CN109580353A (en) * | 2018-12-21 | 2019-04-05 | 东华大学 | One kind is for fibre bundle tension failure single-point type electroacoustic measurement apparatus and method and purposes |
| CN110879172A (en) * | 2019-08-14 | 2020-03-13 | 河南工程学院 | Suspensible test method for knitted portrait and landscape artistic calligraphy and painting product |
| CN111751489A (en) * | 2020-08-03 | 2020-10-09 | 中国计量大学 | Device and method for testing flame retardant property of nano post-treated textile |
Citations (5)
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| KR20030052916A (en) * | 2001-12-21 | 2003-06-27 | 재단법인 포항산업과학연구원 | The Device of Tensile Test for The Detection of Acoustic Emission |
| JP2010237197A (en) * | 2009-03-10 | 2010-10-21 | Murata Mfg Co Ltd | Breaking strength measuring device and breaking strength measuring method |
| CN102033108A (en) * | 2010-11-11 | 2011-04-27 | 江苏大学 | Method for extracting state discrimination characteristic parameter of metal drawing piece |
| CN102109498A (en) * | 2009-12-28 | 2011-06-29 | 天津工业大学 | Nondestructive testing system and testing analysis method for three-dimensional braided composite material |
| CN102353590A (en) * | 2011-07-13 | 2012-02-15 | 中国矿业大学 | Test method and device for monitoring steel wire fretting fatigue state |
-
2014
- 2014-10-15 CN CN201410544838.7A patent/CN104297061B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20030052916A (en) * | 2001-12-21 | 2003-06-27 | 재단법인 포항산업과학연구원 | The Device of Tensile Test for The Detection of Acoustic Emission |
| JP2010237197A (en) * | 2009-03-10 | 2010-10-21 | Murata Mfg Co Ltd | Breaking strength measuring device and breaking strength measuring method |
| CN102109498A (en) * | 2009-12-28 | 2011-06-29 | 天津工业大学 | Nondestructive testing system and testing analysis method for three-dimensional braided composite material |
| CN102033108A (en) * | 2010-11-11 | 2011-04-27 | 江苏大学 | Method for extracting state discrimination characteristic parameter of metal drawing piece |
| CN102353590A (en) * | 2011-07-13 | 2012-02-15 | 中国矿业大学 | Test method and device for monitoring steel wire fretting fatigue state |
Non-Patent Citations (1)
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| 贡丽英: "声发射技术在三维编织复合材料性能测试中的应用", 《中国优秀硕博士学位论文全文数据库（硕士） 信息科技辑》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106596310A (en) * | 2016-11-18 | 2017-04-26 | 上海工程技术大学 | Test system used for analyzing friction performance of coupling materials |
| CN106596310B (en) * | 2016-11-18 | 2019-11-12 | 上海工程技术大学 | It is a kind of for analyzing the test macro of mating material frictional behaviour |
| CN109580353A (en) * | 2018-12-21 | 2019-04-05 | 东华大学 | One kind is for fibre bundle tension failure single-point type electroacoustic measurement apparatus and method and purposes |
| CN110879172A (en) * | 2019-08-14 | 2020-03-13 | 河南工程学院 | Suspensible test method for knitted portrait and landscape artistic calligraphy and painting product |
| CN111751489A (en) * | 2020-08-03 | 2020-10-09 | 中国计量大学 | Device and method for testing flame retardant property of nano post-treated textile |
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| Publication number | Publication date |
|---|---|
| CN104297061B (en) | 2017-01-25 |
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