CN108287103B - Device and method for testing tension, strain and deflection of general planar material - Google Patents
Device and method for testing tension, strain and deflection of general planar material Download PDFInfo
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- CN108287103B CN108287103B CN201711275841.3A CN201711275841A CN108287103B CN 108287103 B CN108287103 B CN 108287103B CN 201711275841 A CN201711275841 A CN 201711275841A CN 108287103 B CN108287103 B CN 108287103B
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- 239000000463 material Substances 0.000 title claims abstract description 110
- 238000012360 testing method Methods 0.000 title claims abstract description 77
- 238000000034 method Methods 0.000 title description 10
- 238000006073 displacement reaction Methods 0.000 claims abstract description 68
- 229910000831 Steel Inorganic materials 0.000 claims description 47
- 239000010959 steel Substances 0.000 claims description 47
- 239000011378 shotcrete Substances 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 2
- 238000010998 test method Methods 0.000 claims 1
- 239000010410 layer Substances 0.000 description 18
- 239000002344 surface layer Substances 0.000 description 12
- 239000002689 soil Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 239000004567 concrete Substances 0.000 description 2
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- 238000004458 analytical method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
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- 230000001681 protective effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
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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
- G01N2203/0019—Compressive
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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
- G01N2203/02—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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Abstract
A general device for testing tension, strain and deflection of a planar material comprises a pressure loading system, a sample bearing platform, a pre-stress loading system and a testing and data acquisition system; the pressure loading system consists of a counter-force upright post, a cross beam, a base, a servo feeding device A and a loading head; the prestress loading system comprises a servo feeding device B, a tension sensor and a loading plate; the test system comprises a pressure sensor, a displacement sensor and a laser displacement meter; the data acquisition system comprises a data acquisition device and a computer. And placing the prepared sample on a sample bearing platform, respectively applying prestress and pressure to the planar material sample by a prestress loading system and a pressure loading system, and reading the data tested by each sensor through the test and data acquisition system to calculate the pressure, displacement and deflection born by the planar material sample. The invention can meet the test of the planar materials with different materials and different constraint conditions.
Description
Technical Field
The invention relates to a universal testing device for tension, strain and deflection of a planar material, and belongs to the technical field of geotechnical engineering.
Background
In foundation pit supporting technology and slope protection system, soil nailing wall supporting technology and anchor spraying supporting technology are one of the common supporting technologies. Whether it is a soil nailing wall support technique or an anchor spraying support technique, one of the important components is a support surface layer. The supporting surface layer is a rigid or flexible protective surface which is arranged for preventing local damage of the slope surface in the foundation pit and slope protection. At present, in soil nailing wall supporting systems and anchor spraying supporting systems, most of surface layers are concrete spraying surface materials, steel wire nets and geotechnical synthetic material surface materials, such as geogrids, geotechnical cloth and the like.
The surface layer is used for realizing protection of the slope body by limiting the lateral displacement of the foundation pit or the slope body and transmitting the lateral soil pressure of the slope body to the soil nails or the anchor rods so as to transmit the soil pressure. In addition, the surface layer plays an important role in preventing slope erosion and greening of the slope. Therefore, the rigidity and the strength of the surface layer play an important role in the stability of foundation pit and slope support systems. Once the surface layer is damaged, the stability of the foundation pit and the side slope is also threatened greatly. Therefore, the testing of the stiffness and strength of the facing is an important indicator in designing a support scheme.
The existing test of the surface layer is mostly the test of sprayed concrete surface material, wherein the test is to test the uniaxial compressive strength of a concrete test block to represent the strength of the surface layer, and the deflection tested in the form of hinging constraint with a circular plate type test block is used for representing the deflection of the surface layer. The test for the geocomposite sheet material also uses a simple uniaxial burst strength to represent the strength of the geocomposite sheet material. Although the test data of the method is representative, the comparison analysis cannot be performed by adopting two sets of equipment and two sets of standards. In general, the on-site supporting surface layer is connected with the anchor rod or the soil nail to form semi-fixed constraint, namely the surface layer is firmly pressed on the slope by the anchor rod head or the soil nail head. The method sets the planar material and the test column into a hinged constraint mode, and obviously cannot truly embody the actual situation of the site.
Disclosure of Invention
The invention provides a general device for testing the tension, the strain and the deflection of planar materials, which can realize the testing of the planar materials of different materials and generate a testing curve by replacing a sample bearing platform, and can compare and analyze the testing results of the planar materials of different materials, thereby being convenient for engineering technicians to conduct material comparison and selection.
The technical scheme adopted by the invention is as follows:
a general device for testing tension, strain and deflection of a planar material comprises a pressure loading system, a sample bearing platform, a pre-stress loading system and a testing and data acquisition system; the pressure loading system consists of reaction upright posts, a cross beam, a base, a servo feeding device A and a loading head, wherein the reaction upright posts are fixedly connected with the base, the cross beam is fixed on the two reaction upright posts, and the servo feeding device A is fixed in the middle of the cross beam; one end of the pressure sensor is fixedly connected with the loading head, and the other end of the pressure sensor is fixedly connected with the servo feeding device A; the sample bearing platform is fixed in the pressure loading system; the prestress loading system comprises a servo feeding device B, a tension sensor, a loading plate and a supporting ring table, wherein the servo feeding device B is fixed in the base, one end of the tension sensor is connected with the servo feeding device B, the other end of the tension sensor is connected with the loading plate, and the supporting ring table is arranged above the base; the test system comprises a pressure sensor, a displacement sensor and a laser displacement meter; the data acquisition system comprises a data acquisition device and a computer. Placing the prepared sample on a sample bearing platform, respectively applying prestress and pressure to the planar material sample through a prestress loading system and a pressure loading system, and reading data of the pressure sensor, the displacement sensor and the laser displacement meter through the test and data acquisition system to calculate the pressure, the displacement and the deflection born by the planar material sample. For the planar materials of different materials, the test is realized by replacing the sample bearing platform.
Furthermore, the loading head is cylindrical, the head is spherical, and the side face is provided with a displacement measuring rod.
Further, the loading head is fixedly connected with the pressure sensor.
Further, the base comprises an upper layer of steel plate and a lower layer of steel plate, the upper layer of steel plate is square, a displacement measuring hole is formed in the middle of the upper layer of steel plate, the steel plate is penetrated, and 6 through holes are distributed around the steel plate in regular hexagon corner points.
Further, the sample bearing platform is divided into two types according to different planar materials and connection modes: for the hinging constraint mode of the sprayed concrete planar material, the sample bearing platform is cylindrical, and the top surface is spherical and is called as a hinging sample bearing platform; for the fixed constraint mode of geosynthetic materials and steel wire mesh planar materials, the sample bearing platform consists of a support column and a sample clamp, and the sample clamp is fixed on the support column through bolts and is called as a fixed sample bearing platform.
Further, the hinged sample bearing platform connects the support column with the base by inserting the support column into the through holes arranged in the regular hexagon of the steel plate on the upper layer of the base.
Furthermore, the fixed sample bearing platform is fixedly connected with the loading plate of the prestress loading system by penetrating the supporting columns through holes which are formed in the regular hexagon of the steel plate at the upper layer of the base.
Further, the sample fixture is composed of two circular steel plates, wherein one surface of each steel plate is provided with saw-tooth lines, and the two circular steel plates clamp the sample through a flange plate, bolts and nuts.
Further, the prestress application system comprises a servo feeding device B, a tension sensor, a loading plate and a support ring table.
Further, the servo feeding device B is fixed in the base, one end of the tension sensor is fixedly connected with the servo feeding device B, the other end of the tension sensor is fixedly connected with the center of the loading plate, and the loading plate is a high-strength metal plate.
Further, the test system comprises a pressure sensor, a displacement sensor and a laser displacement meter.
Further, the pressure sensor is arranged between the servo feeding device A and the loading head, one end of the pressure sensor is fixedly connected with the servo feeding device A, and the other end of the pressure sensor is fixedly connected with the loading head.
Further, the displacement sensor is arranged on the displacement meter bracket and used for testing the displacement of the loading head; the laser displacement meter is arranged in the middle of the base, and the displacement of the center of the sample is measured through a displacement measuring hole of the upper layer steel plate inside the base, which is penetrated by laser.
Furthermore, the tension sensor, the pressure sensor and the displacement sensor are all connected with the data acquisition device system through communication cables, so that data acquisition is realized.
A testing method of a general testing device for tension, strain and deflection of a planar material comprises the following steps:
(1) And manufacturing test samples according to test requirements, for example, manufacturing sprayed concrete planar materials in a test die and curing, and cutting the geosynthetic material planar materials and the steel wire mesh planar materials into corresponding sizes.
(2) And (5) correctly placing the test sample on a sample bearing platform according to the test requirement. For a sprayed concrete planar material hinging constraint mode, selecting a hinging sample bearing platform, accurately placing a planar material sample on the hinging sample bearing platform, and enabling the center of the planar material sample to be consistent with the center of a displacement measuring hole of the upper steel plate and the center of the loading head; and (3) for the fixed constraint mode of the geosynthetic material planar material and the steel wire mesh planar material, selecting a fixed sample bearing platform, placing a planar material sample on a planar material clamp, leveling and clamping, and fixedly connecting the planar material clamp with a support column for fixing the sample bearing platform, so that the center of the sample is consistent with the center of a displacement measuring hole of the upper steel plate and the center of the loading head.
(3) The displacement sensor and the pressure sensor are arranged at corresponding positions and are connected with the data acquisition unit through wires, and the connection condition of each sensor and the data acquisition unit is tested, so that the integrity of the sensors and the data acquisition unit is ensured.
(4) For geosynthetic materials and steel wire mesh planar materials, a servo feeding device B in the prestress loading system can be controlled to pull the loading plate downwards to enable a planar material sample to be in contact with the supporting ring table, the supporting ring table is tensioned, stress is applied, and a prestress value is recorded through the reading of the tension sensor.
(5) The servo feed device a is started so that the loading head just touches the sample and the sensors are zeroed.
(6) And starting the servo feeding device A and the data acquisition device, automatically recording the data of each sensor by using a computer, and drawing a load displacement curve.
(7) The data is saved and the servo feeder a is retracted and the sample is removed and ready for the next test.
(8) Repeating (2) - (7), and performing a new test.
(9) And after the test is finished, the power supply of each system is turned off.
The invention relates to a device and a method for testing tension, strain and deflection of a general planar material, which have the advantages that:
(1) The invention can meet the test of the planar materials with different materials and different constraint conditions.
(2) The sample bearing platform can be replaced at will according to different materials and constraint conditions, and the operation is simple and convenient.
(3) The invention can effectively and uniformly test the planar materials with different materials and different constraint conditions, and is convenient for data comparison and scheme comparison and selection.
(4) The invention provides a device for applying prestress to a planar material, which well solves the problems of tensioning and applying prestress to a planar material sample.
(5) The invention adopts an automatic data acquisition device in the whole course, reduces the artificial interference and has good data reliability.
(6) The invention has simple structure, easy operation, simple and easy use, low manufacturing cost and suitability for popularization and application.
Drawings
FIG. 1 is a schematic diagram of a general device for testing tension, strain and deflection of a planar material
FIG. 2 is a schematic diagram of a general planar material tension, strain and deflection test device in a fixed constraint mode structure
FIG. 3 is a schematic diagram of a hinge constraint mode structure of a general planar material tension, strain and deflection testing device
FIG. 4 schematic top view of the upper layer steel plate of the base
FIG. 5 schematic diagram of a support column for a fixed specimen mount
FIG. 6 is a schematic top view of a loadboard
FIG. 7 is a schematic cross-sectional and top view of a support ring
In the figure: 1-base, 2-lower layer steel plate, 3-upper layer steel plate, 4-counterforce upright post, 5-beam, 6-loading head, 7-servo feeding device A, 8-pressure sensor, 9-planar material clamp, 10-supporting ring table, 11-servo feeding device B, 12-tension sensor, 13-loading plate, 14-fixed sample table, 15-laser displacement meter, 16-displacement measuring hole, 17-through hole, 18-hinged sample table, 19-planar material sample, 20-displacement sensor, 21-displacement meter bracket, 22-supporting ring table fixing hole, 23-data collector, 24-computer, 25-screw, 26-screw hole
Detailed Description
As shown in FIG. 1, a device for testing tension, strain and deflection of a general planar material comprises a pressure loading system, a sample bearing platform, a prestress loading system and a testing and data acquisition system; the pressure loading system consists of a base 1, reaction columns 4, a cross beam 5, a loading head 6 and a servo feeding device A7, wherein the reaction columns 4 are fixedly connected with the base 1, the cross beam 5 is erected on the two reaction columns 4 and is fixed by bolts, the servo feeding device A7 is fixed in the middle of the cross beam 5, one end of a pressure sensor 8 is fixedly connected with the servo feeding device A7, the other end of the pressure sensor is fixedly connected with the loading head 6, and the pressure of the loading head 6 is measured; the sample bearing platform is divided into a fixed sample bearing platform 14 and a hinged sample bearing platform 18; the prestress loading system comprises a servo feeding device B11, a tension sensor 12 and a loading plate 13, wherein one end of the tension sensor 12 is fixedly connected with the servo feeding device B11, and the other end is fixedly connected with the center of the loading plate 13; the testing and collecting system comprises a laser displacement meter 15, a displacement sensor 20, a pressure sensor 8, a data collector 23 and a computer 24; the displacement sensor 20 is fixed on the displacement meter bracket 21 and is used for testing the displacement of the loading head; the laser displacement meter 15 is placed at the center of the loading plate 13, so that the laser emission end of the laser displacement meter 15 is aligned with the displacement measuring hole 16 on the upper layer steel plate 3, so that the laser can measure the displacement of the center of the planar material sample through the displacement measuring hole 16, and the laser displacement meter 16 is prevented from being broken by falling after the planar material sample is damaged. The pressure sensor 8, the tension sensor 12, the laser displacement meter 15 and the displacement sensor 20 are connected with a data collector 23 through data wires, and collected data are transmitted to a computer 24.
Firstly, selecting a proper sample bearing platform according to the material and constraint mode of a test sample, such as selecting a hinged sample bearing platform 18 in a hinged constraint mode of sprayed concrete planar material; the geosynthetic material planar material and steel mesh planar material fixing constraint mode selects the fixed sample platform 14.
And (3) selecting good sample bearing platforms, such as: the hinged sample bearing platform 18 is inserted into the through hole 17 of the upper layer steel plate 3 and fixedly connected with the base upper layer steel plate 3; the fixed sample platform 14 passes through the through hole 17 on the upper layer steel plate 3 and is fixedly connected with the screw hole 26 on the loading plate 13 through the screw 25, the support ring platform 10 is accurately placed on the upper layer steel plate 3, and the support ring platform 10 and the upper layer steel plate 3 are fixed through the screw passing through the support ring platform fixing hole 22 on the upper layer steel plate 3.
The prepared sheet material sample 19 is placed on a sample support: for the shotcrete planar material hinge constraint mode, the center of the shotcrete planar material sample 19 needs to be aligned with the center of the displacement measurement hole 16 on the upper layer steel plate 3; in the mode of fixing and restraining the geosynthetic material sheet material and the steel wire mesh sheet material, it is necessary to fix the sheet material sample 19 to the sheet material holder 9 and to fixedly connect the sheet material holder 9 to the fixed sample stage 14.
The test system was started, preheated for 15 minutes, and for the test of the sprayed concrete panel material hinge constraint mode, the loading head 6 was first brought into contact with the panel material sample immediately before being slightly suspended, and the displacement sensor 20, the tension sensor 12, and the laser displacement meter 15 were cleared.
The servo feeding device A7 is continuously started, the test is formally started, the test is carried out on the surface-shaped material sample, in the test process, the pressure sensor 8, the displacement sensor 20 and the laser displacement meter 15 transmit data to the data collector 23 in real time and transmit the data to the computer 24, and load, displacement and deflection data in the test process are obtained.
Alternatively, before starting the test, the test of the fixed constraint mode of the geosynthetic material sheet material and the steel wire mesh sheet material requires that the sheet material sample be prestressed, the fixed sample table 14 may be moved downward by pulling the loading plate 13 downward by turning on the servo feeder B11, the sheet material sample 19 may be brought into contact with the support ring table 10 and tensioned, and the value on the tension sensor 12 may be read and recorded.
Starting the servo feeding device A7 to stop the loading head 6 just after contacting with the planar material sample, clearing the data of the pressure sensor 8, the displacement sensor 20 and the laser displacement meter 15, continuing to start the servo feeding device A7 to continue the test, recording the data of the pressure sensor 8, the displacement sensor 20 and the laser displacement meter 15 through the data collector 23 and the computer 24, and obtaining the load, displacement and deflection data in the test process.
After the test is completed, the servo feeder A7 is retracted, and the tested sheet material sample is removed from the sample table to prepare for the next test set.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (1)
1. A testing method based on a general planar material tension, strain and deflection testing device is characterized by comprising the following steps of:
the universal planar material tension, strain and deflection testing device comprises a pressure loading system, a sample bearing platform, a prestress loading system, a testing system and a data acquisition system; the pressure loading system consists of reaction upright posts, a cross beam, a base, a servo feeding device A and a loading head, wherein the reaction upright posts are fixedly connected with the base, the cross beam is fixed on the two reaction upright posts, and the servo feeding device A is fixed in the middle of the cross beam; the sample bearing platform is fixed in the pressure loading system; the prestress loading system comprises a servo feeding device B, a tension sensor, a loading plate and a supporting ring table, wherein the servo feeding device B is fixed in the base, one end of the tension sensor is fixedly connected with the servo feeding device B, the other end of the tension sensor is fixedly connected with the center of the loading plate, the supporting ring table is placed above the base, and the loading plate is a high-strength metal plate; the test system comprises a pressure sensor, a displacement sensor and a laser displacement meter; one end of the pressure sensor is fixedly connected with the loading head, and the other end of the pressure sensor is fixedly connected with the servo feeding device A; the data acquisition system comprises a data acquisition device and a computer; placing the prepared sample on a sample bearing platform, respectively applying prestress and pressure to the planar material sample through a prestress loading system and a pressure loading system, and reading data of the pressure sensor, the displacement sensor and the laser displacement meter through the testing system and a data acquisition system to calculate the pressure, the displacement and the deflection born by the planar material sample;
the base consists of an upper layer of steel plate and a lower layer of steel plate, wherein the upper layer of steel plate is square, a displacement measuring hole is formed in the middle of the upper layer of steel plate, and 6 through holes are formed in the periphery of the upper layer of steel plate in a regular hexagon angular point arrangement mode;
the sample bearing platform is divided into two types according to different planar materials and connection modes: for the hinging constraint mode of the sprayed concrete planar material, the sample bearing platform is cylindrical, and the top surface is spherical and is called as a hinging sample bearing platform; for the fixing constraint mode of geosynthetic materials and steel wire mesh planar materials, the sample bearing platform consists of a support column and a sample clamp, and the sample clamp is fixed on the support column through bolts and is called as a fixed sample bearing platform; the hinged sample bearing platform is used for connecting the support column with the base by inserting the support column into the through holes which are arranged in a regular hexagon of the steel plate at the upper layer of the base; the fixed sample bearing platform is used for fixedly connecting the support column with the loading plate of the prestress loading system through the through holes which are arranged in the regular hexagon of the steel plate at the upper layer of the base;
the displacement sensor is arranged on the displacement meter bracket and used for testing the displacement of the loading head; the laser displacement meter is arranged in the middle of the base, and the displacement of the center of the sample is measured through a displacement measuring hole of the upper layer steel plate in the base through laser;
the test method comprises the following steps:
(1) Manufacturing a test sample according to test requirements, manufacturing a sprayed concrete planar material in a test mold, curing, and cutting the planar material of the geosynthetic material and the planar material of the steel wire mesh into corresponding sizes;
(2) The test sample is correctly placed on the sample bearing platform according to the test requirement,
for a sprayed concrete planar material hinging constraint mode, selecting a hinging sample bearing platform, accurately placing a planar material sample on the hinging sample bearing platform, and enabling the center of the planar material sample to be consistent with the center of a displacement measuring hole of the upper steel plate and the center of the loading head; for the fixed constraint mode of the geosynthetic material planar material and the steel wire mesh planar material, a fixed sample bearing platform is selected, a planar material sample is placed on a planar material clamp to be leveled and clamped, the planar material clamp is fixedly connected with a support column for fixing the sample bearing platform, and the center of the sample is consistent with the center of a displacement measuring hole of the upper layer steel plate and the center of the loading head;
(3) The displacement sensor and the pressure sensor are arranged at corresponding positions and are connected with the data acquisition unit through wires, and the connection condition of each sensor and the data acquisition unit is tested, so that the integrity of the sensors and the data acquisition unit is ensured;
(4) For geosynthetic materials and steel wire mesh planar materials, a servo feeding device B in the prestress loading system is controlled to downwards pull the loading plate so that a planar material sample is in contact with the support ring table, the support ring table is tensioned, stress is applied, and a prestress value is recorded through the reading of the tension sensor;
(5) Starting the servo feeding device A, enabling the loading head to just touch the sample, and zeroing each sensor;
(6) Starting the servo feeding device A and the data acquisition device, automatically recording the data of each sensor by using a computer, and drawing a load displacement curve;
(7) Storing data, returning the servo feeding device A, taking down the sample, and preparing the next test;
(8) Repeating (2) - (7) to perform a new test;
(9) And after the test is finished, the power supply of each system is turned off.
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| CN201711275841.3A CN108287103B (en) | 2017-12-06 | 2017-12-06 | Device and method for testing tension, strain and deflection of general planar material |
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| CN201711275841.3A CN108287103B (en) | 2017-12-06 | 2017-12-06 | Device and method for testing tension, strain and deflection of general planar material |
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| CN108287103B true CN108287103B (en) | 2023-12-12 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080103340A (en) * | 2007-05-23 | 2008-11-27 | 재단법인 에프아이티아이시험연구원 | A grip for tensile creep tester |
| CN101986129A (en) * | 2010-06-22 | 2011-03-16 | 交通运输部公路科学研究所 | Hydraulic wide geogrid clamp |
| WO2013152293A1 (en) * | 2012-04-06 | 2013-10-10 | White David Joshua | Mobile test system and methods for in situ characterization of stress and deflection dependent stiffness and bearing capacity of soils and geo-materials |
| CN104165807A (en) * | 2014-08-13 | 2014-11-26 | 浙江大学 | Large-deflection destruction testing device and method for prestressed concrete plate beam |
| CN106404564A (en) * | 2016-09-28 | 2017-02-15 | 苏州大学 | Bursting device |
| CN207019989U (en) * | 2017-03-16 | 2018-02-16 | 山东科技大学 | A kind of general planar material tension, strain and deflection test device |
-
2017
- 2017-12-06 CN CN201711275841.3A patent/CN108287103B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080103340A (en) * | 2007-05-23 | 2008-11-27 | 재단법인 에프아이티아이시험연구원 | A grip for tensile creep tester |
| CN101986129A (en) * | 2010-06-22 | 2011-03-16 | 交通运输部公路科学研究所 | Hydraulic wide geogrid clamp |
| WO2013152293A1 (en) * | 2012-04-06 | 2013-10-10 | White David Joshua | Mobile test system and methods for in situ characterization of stress and deflection dependent stiffness and bearing capacity of soils and geo-materials |
| CN104165807A (en) * | 2014-08-13 | 2014-11-26 | 浙江大学 | Large-deflection destruction testing device and method for prestressed concrete plate beam |
| CN106404564A (en) * | 2016-09-28 | 2017-02-15 | 苏州大学 | Bursting device |
| CN207019989U (en) * | 2017-03-16 | 2018-02-16 | 山东科技大学 | A kind of general planar material tension, strain and deflection test device |
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