CN108287103A - A kind of general planar material tension, strain and deflection test device and test method - Google Patents
A kind of general planar material tension, strain and deflection test device and test method Download PDFInfo
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- CN108287103A CN108287103A CN201711275841.3A CN201711275841A CN108287103A CN 108287103 A CN108287103 A CN 108287103A CN 201711275841 A CN201711275841 A CN 201711275841A CN 108287103 A CN108287103 A CN 108287103A
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- 238000012360 testing method Methods 0.000 title claims abstract description 65
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 67
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- 238000005259 measurement Methods 0.000 claims description 15
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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
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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
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- 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
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- 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
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0278—Thin specimens
- G01N2203/0282—Two dimensional, e.g. tapes, webs, sheets, strips, disks or membranes
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A kind of general planar material tension, strain and deflection test device, including pressure-loaded system, sample cushion cap, prestressing force loading system, testing and data collecting system；The pressure-loaded system is made of counter-force column, crossbeam, pedestal, servo apparatus for feeding A and loading head；The prestressing force loading system includes servo apparatus for feeding B, pulling force sensor and load plate；The test system includes pressure sensor, displacement sensor and laser displacement gauge；The data collecting system includes data collector and computer.The sample prepared is placed on sample cushion cap, prestressing force loading system and pressure-loaded system apply prestressing force and pressure to planar material sample respectively, and the data for reading each sensor test with data collecting system by the test calculate pressure, displacement and amount of deflection that planar material sample is born.The present invention can meet different materials, various boundary conditions planar material experimental test.
Description
Technical field
The present invention relates to a kind of general planar material tension, strain and deflection test devices, belong to Geotechnical Engineering neck
Domain.
Background technology
In Base hole supporting technology and side slope protection system, design of anchored bulkhead and Shotcrete Rockbolt Support Technique are commonly to prop up
One of shield technology.Either design of anchored bulkhead or Shotcrete Rockbolt Support Technique, one of important component are exactly branch
Armour layer.So-called branch armour layer be in foundation pit and side slope protection for prevent slope surface occur local failure setting it is a kind of rigidity or
Protection face flexible.At present in soil-nail wall support system and bolt-spary supports system, face layer is mostly concrete ejection planar material
Material, steel wire, geosynthetics planar material, such as TGXG, geotextiles.
The soil lateral pressure of slopes is passed to soil nailing or anchor by face layer by limiting the lateral displacement of foundation pit or slopes
Bar transmits the effect of soil pressure to realize protection slopes.Except this, face layer plays weight to preventing the erosion caused by sloping surfaces and slopes from afforesting
It acts on.Therefore, the rigidity and intensity of face layer play an important roll the stability of foundation pit and slope retaining system.Once face layer
It destroys, the stability of foundation pit and side slope is also just by larger threat.Therefore when designing supporting scheme, the rigidity of face layer
Test with intensity is an important indicator.
Mostly it is at present the test for gunite concrete planar material for the test of face layer, test is mixed by testing
The uniaxial compressive strength of solidifying soil test block utilizes the amount of deflection generation of the formal testing hingedly constrained with rondelle test block for superficial layer intensity
Superficial layer amount of deflection.Geotechnique's conjunction is represented also with simple uniaxial bursting strength for the test of geosynthetics planar material
At the material face shape strength of materials.Though the test data of above method has certain representativeness, it uses two complete equipments, two
Set standard can not compare and analyze.In general, scene branch armour layer mostly be connected into anchor pole or soil nailing it is semifixed
Constraint, i.e. face layer are firmly pressed in slope surface by anchor pole head or soil nailing head.Planar material is arranged to by above method with test pole
Hinged constraint type, it is clear that be unable to the actual conditions at real embodiment scene.
Invention content
The present invention provides a kind of general planar material tension, strain and deflection test devices, by replacing sample cushion cap,
The test of different materials planar material may be implemented and generate test curve, and can be by different materials planar testing of materials result
It compares and analyzes, engineers and technicians is facilitated to carry out material than choosing.
The technical solution that the present invention takes is：
A kind of general planar material tension, strain and deflection test device, including pressure-loaded system, sample cushion cap, prestressing force
Loading system, testing and data collecting system；The pressure-loaded system is by counter-force column, crossbeam, pedestal, servo apparatus for feeding
A and loading head composition, the counter-force column are fixedly connected with pedestal, and the crossbeam is fixed on two counter-force columns, institute
Servo apparatus for feeding A is stated to be fixed among the crossbeam；Described pressure sensor one end is fixedly connected with the loading head, separately
One end is fixedly connected with the servo apparatus for feeding A；The sample cushion cap is fixed on the pressure-loaded internal system；It is described
Prestressing force loading system includes servo apparatus for feeding B, pulling force sensor, load plate and support land, the servo apparatus for feeding
B is fixed in the pedestal, and described pulling force sensor one end is connect with the servo apparatus for feeding B, and one end connects with load plate
It connects, the support land is placed on above the pedestal；The test system includes pressure sensor, displacement sensor and laser
Displacement meter；The data collecting system includes data collector and computer.The sample prepared is placed on sample cushion cap, is led to
It crosses prestressing force loading system and pressure-loaded system applies prestressing force and pressure respectively to planar material sample, pass through the test
The data that the pressure sensor, displacement sensor and laser displacement gauge are read with data collecting system calculate the examination of planar material
Pressure, displacement and the amount of deflection that sample is born.Above-mentioned survey is realized by replacing sample cushion cap for the planar material of different materials
Examination.
Further, the loading head is cylinder, and head is spherical, and side is provided with a displacement measurement bar.
Further, the loading head is fixedly connected with the pressure sensor.
Further, the pedestal is made of upper and lower two-layered steel plates, and the upper layer steel plate is square, the setting one in centre
Steel plate is run through in a displacement measurement hole, is arranged with regular hexagon angle point in surrounding and 6 through holes are arranged.
Further, the sample cushion cap is divided into two types according to planar material and connection type difference：For injection
The hinged restriction mode of concrete planar material, the sample cushion cap are cylinder, and top surface is spherical, and referred to as hingedly sample is held
Platform；For the fixed constraint pattern of geosynthetics, steel wire planar material, the sample cushion cap is by support column and specimen holder
Tool composition, the specimen holder are bolted on support column, referred to as fixed sample cushion cap.
Further, the support column by being inserted into positive six side of pedestal upper layer steel plate by the hinged sample cushion cap
Support column is connect with pedestal in the through hole of shape arrangement.
Further, the fixed sample cushion cap, by the way that the support column is passed through positive the six of pedestal upper layer steel plate
The through hole that side shape is laid is fixedly connected with the load plate of the prestressing force loading system.
Further, the specimen holder is made of two circular ring shape steel plates, steel plate one side have zigzag lines, two
Circular ring shape steel plate is clamped sample by ring flange, screw bolt and nut.
Further, the prestress application system includes servo apparatus for feeding B, pulling force sensor, load plate and support
Land.
Further, the servo apparatus for feeding B is fixed in the pedestal, and described pulling force sensor one end is watched with described
It takes apparatus for feeding B to be fixedly connected, the other end is fixedly connected with load plate center, and the load plate is high-strength metal sheet.
Further, the test system includes pressure sensor, displacement sensor and laser displacement gauge.
Further, the pressure sensor is arranged between the servo apparatus for feeding A and the loading head, one end with
The servo apparatus for feeding A is fixedly connected, and the other end is fixedly connected with the loading head.
Further, institute's displacement sensors are arranged on the displacement meter holder, test loading head displacement；The laser
Displacement meter is arranged among the pedestal, and the displacement measurement hole measurement sample of chassis interior upper layer steel plate is passed through by laser
The displacement at center.
Further, the pulling force sensor, pressure sensor, displacement sensor pass through communication cable and the data
Collector systems connect, and realize data acquisition.
The test method of a kind of general planar material tension, strain and deflection test device is as follows：
（1）Test sample is made according to test requirements document, e.g., gunite concrete planar material is needed after being made in die trial simultaneously
Maintenance, for geosynthetics planar material, steel wire planar material cutting at corresponding size.
（2）Test sample is correctly placed on sample cushion cap according to test request.For gunite concrete planar material
Hinged restriction mode selects hinged sample cushion cap, and planar material sample is accurately placed on the hinged sample cushion cap, and is made
Planar material sample center is consistent with the center in the displacement measurement hole of the upper layer steel plate and the center of the loading head；For
The fixed constraint pattern of geosynthetics planar material, steel wire planar material selects fixed sample cushion cap, by planar material
Sample is placed on planar material fixture pull-up and puts down and clamp, and the support column of planar material fixture and fixed sample cushion cap is fixed and is connected
It connects, keeps sample center consistent with the center in the displacement measurement hole of the upper layer steel plate and the center of the loading head.
（3）Displacement sensor and pressure sensor are placed in corresponding position, connect with data collector by conducting wire, is surveyed
Try the connection of each sensor and data collector, it is ensured that sensor and data collector it is intact.
（4）It, can be by controlling in the prestressing force loading system for geosynthetics, steel wire planar material
Servo apparatus for feeding B, which pulls downward on the load plate, makes planar material sample be contacted with the support land, and is tensioned, and application is answered
Power passes through the pulling force sensor read-record prestress value.
（5）Start the servo apparatus for feeding A so that loading head just touches sample, and each sensor is zeroed.
（6）Start the servo apparatus for feeding A, data collector, the data of each sensor is automatically recorded with computer, and paint
Load-displacement curve processed.
（7）Data are preserved, and servo apparatus for feeding A is retracted, and remove sample, prepare next experiment.
（8）It repeats（2）-（7）, carry out a new experiment.
（9）After experiment, each system power supply is closed.
A kind of general planar material tension of the present invention, strain and the usefulness of deflection test device and test method are：
（1）The present invention can meet different materials, various boundary conditions planar material experimental test.
（2）Sample cushion cap can arbitrarily be replaced according to different materials and constraints in the present invention, simple to operate.
（3）The present invention can be effectively by the unified progress of the planar testing of materials of different materials and various boundary conditions, just
In data comparison, scheme comparison.
（4）The present invention provides a kind of planar material prestress application devices, preferably resolve planar material sample
Tightly and apply prestressed problem.
（5）Whole process of the invention uses automatic data acquisition device, reduces human interference, and data reliability is good.
（6）The configuration of the present invention is simple, it is easily operated, it is easy to use, and manufacturing cost is low, is suitble to promote and apply.
Figure of description
A kind of general planar material tensions of Fig. 1, strain and deflection test device structural schematic diagram
A kind of general planar material tensions of Fig. 2, strain and deflection test device fixed constraint mode configuration schematic diagram
A kind of general planar material tensions of Fig. 3, strain and deflection test device are hinged restriction mode structural schematic diagram
Fig. 4 pedestals upper layer steel plate schematic top plan view
Fig. 5 fixes sample cushion cap support column schematic diagram
Fig. 6 load plate schematic top plan views
Fig. 7 supports land section and schematic top plan view
In figure：1-pedestal, 2- lower layers steel plate, 3-upper layer steel plates, 4-counter-force columns, 5-crossbeams, 6- loading heads, 7-servos
Apparatus for feeding A, 8-pressure sensors, 9-planar material fixtures, 10-support land, 11-servo apparatus for feeding B, 12-
Pulling force sensor, 13- load plates, 14- fixation sample cushion caps, 15- laser displacement gauges, 16- displacement measurements hole, 17- through holes,
18-hinged sample cushion caps, 19- planar material samples, 20- displacement sensors, 21- displacement meter holders, 22- supports land are fixed
Hole, 23- data collectors, 24- computers, 25- screws, 26- screw holes
Specific implementation mode
As shown in Figure 1, a kind of general planar material tension, strain and deflection test device, including pressure-loaded system, examination
Sample cushion cap, prestressing force loading system, testing and data collecting system；The pressure-loaded system is by pedestal 1, counter-force column 4, cross
Beam 5, loading head 6 and servo apparatus for feeding A 7 are formed, and the counter-force column 4 is fixedly connected with pedestal 1, and the crossbeam 5 is erected at
It on two counter-force columns 4, and is fixed using bolt, the servo apparatus for feeding A 7 is fixed among the crossbeam 5, institute
It states 8 one end of pressure sensor to be fixedly connected with the servo apparatus for feeding A 7, the other end is fixedly connected with the loading head 6, amount
Survey the pressure of the loading head 6；The sample cushion cap is divided into fixed sample cushion cap 14 and hinged 18 two kinds of sample cushion cap；It is described pre-
Stress loading system includes servo apparatus for feeding B 11, pulling force sensor 12 and load plate 13,12 one end of the pulling force sensor
It is fixedly connected with servo apparatus for feeding B 11, one end is fixedly connected with 13 center of load plate；The test with acquisition system includes
Laser displacement gauge 15, displacement sensor 20, pressure sensor 8, data collector 23 and computer 24；Institute's displacement sensors 20 are solid
It is scheduled on the displacement meter holder 21, tests the displacement of loading head；The laser displacement gauge 15 is placed in the load plate 13
The heart so that the Laser emission end of the laser displacement gauge 15 is aligned with the displacement measurement hole 16 on the upper layer steel plate 3, to make
Laser light displacement measurement hole 16 measures the displacement at planar material sample center, and falls after preventing planar material sample from destroying and pound
Bad laser displacement gauge 16.The pressure sensor 8, pulling force sensor 12, the laser displacement gauge 15 and displacement sensor 20 are logical
It crosses data line to connect with data collector 23, and will be in the data transmission of acquisition to computer 24.
First according to the material of test sample and the way of restraint, suitable sample cushion cap is selected, such as gunite concrete planar
Material is hinged restriction mode selection and is hinged sample cushion cap 18；Geosynthetics planar material, steel wire planar material are fixed about
Sample cushion cap 14 is fixed in beam model selection.
By selected sample cushion cap, such as：Hinged sample cushion cap 18 is inserted into the through hole 17 of the upper layer steel plate 3, with
Pedestal upper layer steel plate 3 is fixedly connected；Fixed sample cushion cap 14 then passes through the through hole 17 on upper layer steel plate 3 by screw 25 and adds
Screw hole 26 on support plate 13 is fixedly connected, and makes 10 exact placement of support land on upper layer steel plate 3, is passed through by screw upper
Support land mounting hole 22 on layer steel plate 3 will support land 10 to be fixed with upper layer steel plate 3.
The planar material sample 19 prepared is placed on sample cushion cap：It is hinged about for gunite concrete planar material
Beam pattern is needed the center in the displacement measurement hole 16 on the center of gunite concrete planar material sample 19 and upper layer steel plate 3
Alignment；For the fixed constraint pattern of geosynthetics planar material and steel wire planar material, need to try planar material
Sample 19 is fixed on planar material fixture 9, and planar material fixture 9 is fixedly connected with fixed sample cushion cap 14.
Pilot system is opened, preheats 15 minutes, the test of restriction mode is hinged for gunite concrete planar material, first
So that loading head 6 has just been contacted planar material sample, slightly suspend, and by displacement sensor 20, pulling force sensor 12 and laser position
Meter 15 is moved to reset.
Servo apparatus for feeding A 7 is continued on, formally starts to test, experimental test, test are carried out to planar material sample
In the process, data are transmitted on data collector 23 simultaneously by pressure sensor 8, displacement sensor 20 and laser displacement gauge 15 in real time
Send computer 24 to, the load, displacement during being tested and deflection data.
Alternatively, before starting experiment, for the fixed constraint mould of geosynthetics planar material and steel wire planar material
The test of formula needs to apply prestressing force to planar material sample, can pull downward on load by opening servo apparatus for feeding B 11
Plate 13 makes fixed sample cushion cap 14 move down, and so that planar material sample 19 is contacted with support land 10, and tense, reads pulling force
Value on sensor 12, and record.
Unlatching servo apparatus for feeding A 7 stops after so that loading head 6 is just contacted with planar material sample, to pressure sensor
8, the zeros data of displacement sensor 20 and laser displacement gauge 15 continues on servo apparatus for feeding A 7 and continues to test, passes through number
The data of pressure sensor 8, displacement sensor 20 and laser displacement gauge 15 are recorded according to collector 23 and computer 24, acquisition was tested
Load, displacement in journey and deflection data.
After experiment, servo apparatus for feeding A 7 is withdrawn, the planar material sample tested is taken from sample cushion cap
Under, prepare lower battery of tests.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features；
And these modifications or replacements, various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (7)
1. a kind of general planar material tension, strain and deflection test device, including pressure-loaded system, sample cushion cap, answer in advance
Force loading system, testing and data collecting system；The pressure-loaded system is by counter-force column, crossbeam, pedestal, servo feed dress
A and loading head composition are set, the counter-force column is fixedly connected with pedestal, and the crossbeam is fixed on two counter-force columns,
The servo apparatus for feeding A is fixed among the crossbeam；Described pressure sensor one end is fixedly connected with the loading head,
The other end is fixedly connected with the servo apparatus for feeding A；The sample cushion cap is fixed on the pressure-loaded internal system；Institute
It includes servo apparatus for feeding B, pulling force sensor, load plate and support land, the servo feed dress to state prestressing force loading system
It sets B to be fixed in the pedestal, described pulling force sensor one end is connect with the servo apparatus for feeding B, one end and load plate
Connection, the support land are placed on above the pedestal；The test system includes pressure sensor, displacement sensor and swashs
Light displacement meter；The data collecting system includes data collector and computer；The sample prepared is placed on sample cushion cap,
Apply prestressing force and pressure respectively to planar material sample by prestressing force loading system and pressure-loaded system, passes through the survey
The data that the pressure sensor, displacement sensor and laser displacement gauge are read in examination with data collecting system calculate planar material
Pressure, displacement and the amount of deflection that sample is born.
2. a kind of general planar material tension, strain and deflection test device according to claim 1, it is characterised in that：
The pedestal is made of upper and lower two-layered steel plates, and the upper layer steel plate is square, and a displacement measurement hole is arranged in centre, runs through
Steel plate is arranged with regular hexagon angle point in surrounding and 6 through holes is arranged.
3. a kind of general planar material tension, strain and deflection test device according to claim 1, it is characterised in that：
The sample cushion cap is divided into two types according to planar material and connection type difference：For gunite concrete planar material
Hinged restriction mode, the sample cushion cap are cylinder, and top surface is spherical, referred to as hinged sample cushion cap；Material is synthesized for geotechnique
The fixed constraint pattern of material, steel wire planar material, the sample cushion cap are made of support column and specimen holder, the specimen holder
Tool is bolted on support column, referred to as fixed sample cushion cap.
4. a kind of general planar material tension, strain and deflection test device according to claim 1, it is characterised in that：
The support column by being inserted into the through hole that the regular hexagon of pedestal upper layer steel plate is arranged by the hinged sample cushion cap
Support column is connect with pedestal；The support column is passed through positive six side of pedestal upper layer steel plate by the fixed sample cushion cap
The through hole that shape is laid is fixedly connected with the load plate of the prestressing force loading system.
5. a kind of general planar material tension, strain and deflection test device according to claim 1, it is characterised in that：
The prestress application system includes servo apparatus for feeding B, pulling force sensor, load plate and support land, the servo feed
Device B is fixed in the pedestal, and described pulling force sensor one end is fixedly connected with the servo apparatus for feeding B, the other end
It is fixedly connected with load plate center, the load plate is high-strength metal sheet.
6. a kind of general planar material tension, strain and deflection test device according to claim 1, it is characterised in that：
Institute's displacement sensors are arranged on the displacement meter holder, test loading head displacement；The laser displacement gauge is arranged described
Among pedestal, the displacement at the displacement measurement hole measurement sample center of chassis interior upper layer steel plate is passed through by laser.
7. the test method of a kind of general planar material tension, strain and deflection test device, as follows：
（1）Test sample is made according to test requirements document, e.g., gunite concrete planar material is needed after being made in die trial simultaneously
Maintenance, for geosynthetics planar material, steel wire planar material cutting at corresponding size；
（2）Test sample is correctly placed on sample cushion cap according to test request,
Restriction mode is hinged for gunite concrete planar material, hinged sample cushion cap is selected, planar material sample is accurately put
Set on the hinged sample cushion cap, and make the center in planar material sample center and the displacement measurement hole of the upper layer steel plate with
And the center of the loading head is consistent；For the fixed constraint pattern of geosynthetics planar material, steel wire planar material,
Planar material sample it is flat and clamp to be placed on planar material fixture pull-up, by planar material fixture by the fixed sample cushion cap of selection
Be fixedly connected with the support column of fixed sample cushion cap, make sample center and the displacement measurement hole of the upper layer steel plate center and
The center of the loading head is consistent；
（3）Displacement sensor and pressure sensor are placed in corresponding position, and connect with data collector by conducting wire, and is surveyed
Try the connection of each sensor and data collector, it is ensured that sensor and data collector it is intact；
（4）It, can be by controlling the servo in the prestressing force loading system for geosynthetics, steel wire planar material
Apparatus for feeding B, which pulls downward on the load plate, makes planar material sample be contacted with the support land, and is tensioned, and applies stress,
Pass through the pulling force sensor read-record prestress value；
（5）Start the servo apparatus for feeding A so that loading head just touches sample, and each sensor is zeroed；
（6）Start the servo apparatus for feeding A, data collector, the data of each sensor is automatically recorded with computer, and draw
Load-displacement curve；
（7）Data are preserved, and servo apparatus for feeding A is retracted, sample is removed, prepares next experiment；
（8）It repeats（2）-（7）, carry out a new experiment；
（9）After experiment, each system power supply is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711275841.3A CN108287103B (en) | 2017-12-06 | 2017-12-06 | Device and method for testing tension, strain and deflection of general planar material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711275841.3A CN108287103B (en) | 2017-12-06 | 2017-12-06 | Device and method for testing tension, strain and deflection of general planar material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108287103A true CN108287103A (en) | 2018-07-17 |
| CN108287103B CN108287103B (en) | 2023-12-12 |
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| CN109540684A (en) * | 2018-11-26 | 2019-03-29 | 安徽莎沃斯服饰有限公司 | A kind of fabric strength test device |
| CN109632492A (en) * | 2019-01-24 | 2019-04-16 | 贵州恒安工程试验检测有限公司 | A kind of geotextiles device for testing tensile strength and its detection method |
| CN110132745A (en) * | 2019-04-30 | 2019-08-16 | 贵州省分析测试研究院 | A kind of method and device of indirect reflection metal material impact toughness |
| CN110702538A (en) * | 2019-09-29 | 2020-01-17 | 彩虹集团（邵阳）特种玻璃有限公司 | Testing device and method for dynamic instantaneous impact deformation of cover plate glass |
| CN110849710A (en) * | 2019-12-11 | 2020-02-28 | 河南工程学院 | Displacement meter protective bracket and simply supported beam bending test device |
| CN110849709A (en) * | 2019-12-11 | 2020-02-28 | 河南工程学院 | Supporting seat for simply supported beam bending test and simply supported beam bending test device |
| CN111579362A (en) * | 2019-02-19 | 2020-08-25 | 中铁建设集团建筑发展有限公司 | Reactive powder concrete deflection detection device and use method |
| CN111707572A (en) * | 2020-07-10 | 2020-09-25 | 陕西航空电气有限责任公司 | Displacement calibration equipment |
| CN111735705A (en) * | 2020-06-24 | 2020-10-02 | 中国矿业大学 | Flexible muscle material net piece deformation characteristic tester under normal load effect |
| CN112461405A (en) * | 2020-11-17 | 2021-03-09 | 天津航空机电有限公司 | Detection device and test method for metal material deflection and temperature continuous test |
| CN112611633A (en) * | 2020-12-01 | 2021-04-06 | 浙江瑞邦科特检测有限公司 | Detection system for automatically detecting floor deflection deformation in static load test |
| CN116718479A (en) * | 2023-08-08 | 2023-09-08 | 四川巴蜀国草麻业有限公司 | Textile forming cloth strength testing platform and testing method |
| CN117490951A (en) * | 2023-12-29 | 2024-02-02 | 山东恩光新材料有限公司 | Color-coated sheet deflection on-line detection device |
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| CN109540684A (en) * | 2018-11-26 | 2019-03-29 | 安徽莎沃斯服饰有限公司 | A kind of fabric strength test device |
| CN109632492A (en) * | 2019-01-24 | 2019-04-16 | 贵州恒安工程试验检测有限公司 | A kind of geotextiles device for testing tensile strength and its detection method |
| CN111579362A (en) * | 2019-02-19 | 2020-08-25 | 中铁建设集团建筑发展有限公司 | Reactive powder concrete deflection detection device and use method |
| CN110132745A (en) * | 2019-04-30 | 2019-08-16 | 贵州省分析测试研究院 | A kind of method and device of indirect reflection metal material impact toughness |
| CN110702538A (en) * | 2019-09-29 | 2020-01-17 | 彩虹集团（邵阳）特种玻璃有限公司 | Testing device and method for dynamic instantaneous impact deformation of cover plate glass |
| CN110849710B (en) * | 2019-12-11 | 2022-09-13 | 河南工程学院 | Displacement meter protective bracket and simply supported beam bending test device |
| CN110849709A (en) * | 2019-12-11 | 2020-02-28 | 河南工程学院 | Supporting seat for simply supported beam bending test and simply supported beam bending test device |
| CN110849710A (en) * | 2019-12-11 | 2020-02-28 | 河南工程学院 | Displacement meter protective bracket and simply supported beam bending test device |
| CN111735705A (en) * | 2020-06-24 | 2020-10-02 | 中国矿业大学 | Flexible muscle material net piece deformation characteristic tester under normal load effect |
| CN111735705B (en) * | 2020-06-24 | 2021-06-04 | 中国矿业大学 | Flexible muscle material net piece deformation characteristic tester under normal load effect |
| CN111707572A (en) * | 2020-07-10 | 2020-09-25 | 陕西航空电气有限责任公司 | Displacement calibration equipment |
| CN112461405A (en) * | 2020-11-17 | 2021-03-09 | 天津航空机电有限公司 | Detection device and test method for metal material deflection and temperature continuous test |
| CN112611633A (en) * | 2020-12-01 | 2021-04-06 | 浙江瑞邦科特检测有限公司 | Detection system for automatically detecting floor deflection deformation in static load test |
| CN116718479A (en) * | 2023-08-08 | 2023-09-08 | 四川巴蜀国草麻业有限公司 | Textile forming cloth strength testing platform and testing method |
| CN116718479B (en) * | 2023-08-08 | 2023-10-17 | 四川巴蜀国草麻业有限公司 | Textile forming cloth strength testing platform and testing method |
| CN117490951A (en) * | 2023-12-29 | 2024-02-02 | 山东恩光新材料有限公司 | Color-coated sheet deflection on-line detection device |
| CN117490951B (en) * | 2023-12-29 | 2024-03-19 | 山东恩光新材料有限公司 | Color-coated sheet deflection on-line detection device |
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