CN102590260A - Heat-electric injury testing system of carbon fiber reinforced resin matrix composite material - Google Patents
Heat-electric injury testing system of carbon fiber reinforced resin matrix composite material Download PDFInfo
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- CN102590260A CN102590260A CN2012100453426A CN201210045342A CN102590260A CN 102590260 A CN102590260 A CN 102590260A CN 2012100453426 A CN2012100453426 A CN 2012100453426A CN 201210045342 A CN201210045342 A CN 201210045342A CN 102590260 A CN102590260 A CN 102590260A
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Abstract
The invention relates to a heat-electric injury testing system of a carbon fiber reinforced resin matrix composite material, comprising a damp heat box, a mechanical loading device of test pieces and a control device, wherein the mechanical loading device of the test pieces is arranged in the damp heat box, and parts of components in the control device are arranged on the mechanical loading device of the test pieces. The system provided by the invention can perform quantitative damp heat injury, electric current injury and united injury on the carbon fiber reinforced resin matrix composite material under functions of damp heat and electric current and also can accurately measure the dynamic changes of parameters such as electric resistance, temperature and strain of the carbon fiber reinforced resin matrix composite material under functions of heat and electric load. The system provided by the invention can meet the testing requirements of the test pieces with different sizes, is convenient in adjustment, can control and display the contact pressure, has a good software interface and a good data management function and provides an effective and reliable method for uncovering a failure mechanism of the carbon fiber reinforced resin matrix composite material under damp heat, electric current and heat-electric environments.
Description
Technical field
The invention belongs to the composite material test technical field, particularly relate to a kind of carbon fiber enhancement resin base composite material heat-electric injury test macro.
Background technology
Because carbon fiber enhancement resin base composite material has excellent mechanical property, fields such as Aero-Space, wind-power electricity generation, building have therefore been begun to be widely used in.In the process, damp and hot is its common residing environment under arms.In addition, the factors such as electric current of thunder-strike current, induction current, static charge discharge generation usually directly act on the composite structure, and with the hygrothermal environment factor interaction, the result causes durability of structures significantly to reduce.Present most researcher only considers the mechanical behavior of this material under the wet heat condition, but rarely has the report of mechanical behavior under heat-electric load acting in conjunction, and the latter more approaches the real duty status of material.In the document of publishing about damp and hot, electric current factor affecting; All hygrothermal environment and electric current environment are applied respectively during testing of materials; Do not consider the reciprocation when both apply simultaneously; Also only test one or two index for the mechanical property behind heat-electric injury, and do not carry out systematic study; The test macro that adopted is very simple and crude, all only is applicable to the test specimen of specific dimensions, and the contact pressure between test specimen and powered electrode can't accurately measure and control, and also can't gather the parameter of reaction material degree of impairments such as test specimen resistance, temperature, strain simultaneously.Therefore; Develop a kind of simple in structure, easy to adjust, adapt to multiple sample dimensions and require, can accurately show the contact pressure size and can be captured in the test macro that parameters such as carbon fiber enhancement resin base composite material resistance, temperature, strain change under heat-electric loading simultaneously, inefficacy mechanism and the formulation of material safety service condition under heat-electrical environment has crucial meaning for research material.
Summary of the invention
In order to address the above problem; The object of the present invention is to provide a kind ofly can apply accurate contact pressure and heat-electric load, measure the carbon fiber enhancement resin base composite material heat-electric injury test macro of the situations of change such as resistance, temperature, strain of reflection material damage situation simultaneously the carbon fiber enhancement resin base composite material test specimen of multiple size.
In order to achieve the above object, carbon fiber enhancement resin base composite material heat provided by the invention-electric injury test macro comprises damp and hot case, test specimen machinery loading device and control device; Wherein the test specimen machinery loading device is arranged on the inside of damp and hot case, and two test electrodes are installed on it; Part parts in the control device are installed on the test specimen machinery loading device, are used to control the electric current loading and the faulted condition parameter gatherer process of carbon fiber enhancement resin base composite material test specimen.
Described test specimen machinery loading device comprises base, casing, two guide rails, two pull bars, stiff end steel bushing, stiff end electrode, sliding end steel bushing, sliding end electrode, leading screw, force transducer support, conical gear group, main shaft and handwheels; Wherein base is that rectangle is tabular, is horizontally disposed with; Casing (13) is arranged on surface one end of base; The stiff end steel bushing is arranged on the surperficial other end of base, and its inside is equipped with the stiff end electrode; Article two, guide rail is set in parallel in the susceptor surface between casing and stiff end steel bushing along the length direction of base; The sliding end steel bushing is fixed on two shoe surface on the guide rail, and both sides, top processing via hole runs through two pull bars; The two ends of two pull bars that laterally arrange are separately fixed on stiff end steel bushing and the casing on the sidewall inner face near the stiff end steel bushing; The sliding end electrode is installed in the inside of sliding end steel bushing; Relative side is exposed on the external on stiff end electrode and the sliding end electrode, is used for clamping test pieces and conduction; The contacted surface spraying of sliding end steel bushing and the contacted surface of sliding end electrode and stiff end steel bushing and stiff end electrode one deck zirconia ceramics coating; The force transducer support is installed on the sliding end steel bushing near the side of casing, is provided with force cell in it; One end of leading screw is pressed on the force cell, and connects through flat key with force transducer bracket holes inwall, and the other end runs through the inside that casing extends to casing through the bearing that is installed on the casing inner face; Main shaft runs through on the side that is arranged on casing through the bearing that is installed on casing one side; The conical gear group is made up of first conical gear and second conical gear; Wherein first conical gear is connected with the spindle nose key that is positioned at box house; The connection of the second conical gear flat key is installed in through the feed screw nut end of bearings on the casing inner face, and is meshed with first conical gear; Handwheel then is installed in and is positioned at the outside end of casing on the main shaft.
Described control device comprises main control computer, signal generator, current source, electric shunt, data acquisition unit, shunt voltage collection circuit, electrode voltage Acquisition Circuit, temperature sensor, force cell and strain acquirement device; Wherein: main control computer is the control core of whole test system, is used to accomplish signal controlling, data acquisition and storage operation; Signal generator is the controllable signal generating means, and its input end is connected with main control computer, and output terminal is connected with current source, be used for producing corresponding signal according to the instruction of main control computer, thus the output current in Control current source; Current source is a controllable current source; Be used to test specimen measuring current is provided; Its input end is connected with signal generator, two output terminals respectively with the test specimen machinery loading device on the stiff end electrode be connected with sliding end electrode and electric shunt, form a closed test loop; The electricity shunt is the pure resistive device, is used for detecting the electric current of test loop; Data acquisition unit is the multi-channel data acquisition circuit; Its output terminal is connected with main control computer; Input end is connected with shunt voltage collection circuit, electrode voltage Acquisition Circuit, temperature sensor, force cell and strain acquirement device respectively, is used for the necessary various signals of collecting test; The shunt voltage collection circuit is the voltage signal acquisition circuit, is used to obtain the voltage at electric shunt two ends; The electrode voltage Acquisition Circuit is the voltage signal acquisition circuit, is used to obtain the voltage between stiff end electrode and the sliding end electrode; Temperature sensor is installed in the test specimen surface, is used to obtain the temperature information on test specimen surface; Force cell is the pressure signal sensor, is installed on the test specimen machinery loading device, is used to obtain the pressure that test specimen bears; The strain acquirement device is made up of strain testing appearance and foil gauge, is used to obtain the strain information of test specimen, and wherein foil gauge is installed in the test specimen surface, and it is connected with the strain testing appearance through private cable.
Carbon fiber enhancement resin base composite material heat provided by the invention-electric injury test macro can carry out quantitative damp and hot damage, electrical injuries and heat, the damage under the electric acting in conjunction to the test carbon fiber enhancement resin base composite material; Particularly can accurately measure parameters variations such as carbon fiber enhancement resin base composite material resistance, temperature, strain under heat, the electric load acting in conjunction, for the inefficacy mechanism of analyzing carbon fiber enhancement resin base composite material under the true service condition provides a kind of reliable means.In addition, native system can satisfy the requirement of multiple size test specimen, and is easy to adjust, and can control and demonstration contact pressure size, accurately measures resistance, temperature, strain etc. over time, has good software interface and data management function.
Description of drawings
Fig. 1 is that control device constitutes block diagram in carbon fiber enhancement resin base composite material heat provided by the invention-electric injury test macro.
Fig. 2 is a test specimen machinery loading device structural perspective in carbon fiber enhancement resin base composite material heat provided by the invention-electric injury test macro.
Fig. 3 is a test specimen machinery loading device structure vertical view in carbon fiber enhancement resin base composite material heat provided by the invention-electric injury test macro.
Fig. 4 is a test specimen machinery loading device structural front view in carbon fiber enhancement resin base composite material heat provided by the invention-electric injury test macro.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment carbon fiber enhancement resin base composite material heat provided by the invention-electric injury test macro is elaborated.
As shown in Figure 1, carbon fiber enhancement resin base composite material heat provided by the invention-electric injury test macro comprises damp and hot case 11, test specimen machinery loading device and control device; Wherein the test specimen machinery loading device is arranged on the inside of damp and hot case 11, and two test electrodes are installed on it; Part parts in the control device are installed on the test specimen machinery loading device, are used to control the electric current loading and the faulted condition parameter gatherer process of carbon fiber enhancement resin base composite material test specimen.
Described test specimen machinery loading device comprises base 12, casing 13, two guide rails 14, two pull bars 15, stiff end steel bushing 16, stiff end electrode 17, sliding end steel bushing 18, sliding end electrode 19, leading screw 20, force transducer support 21, conical gear group 22, main shaft 23 and handwheels 24; Wherein base 12 is that rectangle is tabular, is horizontally disposed with; Casing 13 is arranged on surface one end of base 12; Stiff end steel bushing 16 is arranged on the surperficial other end of base 12, and its inside is equipped with stiff end electrode 17; Article two, guide rail 14 is set in parallel in base 12 surfaces between casing 13 and stiff end steel bushing 16 along the length direction of base 12; Sliding end steel bushing 18 is fixed on two shoe surface on the guide rail 14, and both sides, top processing via hole runs through two pull bars 15; The two ends of two pull bars 15 that laterally arrange are separately fixed on stiff end steel bushing 16 and the casing 13 on the sidewall inner face near stiff end steel bushing 16; Sliding end electrode 19 is installed in the inside of sliding end steel bushing 18; Relative side is exposed on the external on stiff end electrode 17 and the sliding end electrode 19, is used for clamping test pieces and conduction; Sliding end steel bushing 18 and sliding end electrode 19 contacted surfaces and stiff end steel bushing 16 and stiff end electrode 17 contacted surface spraying one deck zirconia ceramics coatings; Force transducer support 21 is installed on the sliding end steel bushing 18 near the side of casing 13, is provided with force cell 9 in it; One end of leading screw 20 is pressed on the force cell 9, and connects through flat key with force transducer support 21 hole inwalls, and the other end runs through the inside that casing 13 extends to casing 13 through the bearing that is installed on casing 13 inner faces; Main shaft 23 runs through on the side that is arranged on casing 13 through the bearing that is installed on casing 13 1 sides; Conical gear group 22 is made up of first conical gear 25 and second conical gear 26; Wherein first conical gear 25 is connected with the main shaft 23 end keys that are positioned at casing 13 inside; The connection of second conical gear, 26 flat keys is installed in through feed screw nut 26 ends of bearings on casing 13 inner faces, and is meshed with first conical gear 25; Handwheel 24 then is installed in an end that is positioned at casing 13 outsides on the main shaft 23.
Described control device comprises main control computer 1, signal generator 2, current source 3, electric shunt 4, data acquisition unit 5, shunt voltage collection circuit 6, electrode voltage Acquisition Circuit 7, temperature sensor 8, force cell 9 and strain acquirement device 10; Wherein: main control computer 1 is the control core of whole test system, is used to accomplish signal controlling, data acquisition and storage operation; Signal generator 2 is the controllable signal generating means, and its input end is connected with main control computer 1, and output terminal is connected with current source 3, be used for producing corresponding signal according to the instruction of main control computer 1, thus the output current in Control current source 3; Current source 3 is a controllable current source; Be used to test specimen measuring current is provided; Its input end is connected with signal generator 2, two output terminals respectively with the test specimen machinery loading device on stiff end electrode 17 be connected with sliding end electrode 19 and electric shunt 4, form a closed test loop; Electricity shunt 4 is the pure resistive device, is used for detecting the electric current of test loop; Data acquisition unit 5 is the multi-channel data acquisition circuit; Its output terminal is connected with main control computer 1; Input end is connected with shunt voltage collection circuit 6, electrode voltage Acquisition Circuit 7, temperature sensor 8, force cell 9 and strain acquirement device 10 respectively, is used for the necessary various signals of collecting test; Shunt voltage collection circuit 6 is the voltage signal acquisition circuit, is used to obtain the voltage at electric shunt 4 two ends; Electrode voltage Acquisition Circuit 7 is the voltage signal acquisition circuit, is used to obtain the voltage between stiff end electrode 17 and the sliding end electrode 19; Temperature sensor 8 is installed in the test specimen surface, is used to obtain the temperature information on test specimen surface; Force cell 9 is the pressure signal sensor, is installed on the test specimen machinery loading device, is used to obtain the pressure that test specimen bears; Strain acquirement device 10 is made up of strain testing appearance and foil gauge, is used to obtain the strain information of test specimen, and wherein foil gauge is installed in the test specimen surface, and it is connected with the strain testing appearance through private cable.
Carbon fiber enhancement resin base composite material heat provided by the invention-electric injury test macro course of work is described: at first rotate handwheel 24 so that sliding end electrode 19 is adjusted to a certain position, will pack between stiff end electrode 17 and the sliding end electrode 19 as the surface treated carbon fiber enhancement resin base composite material plate of test specimen then at present by operating personnel; Open main control computer 1 and get into the software control interface, rotate handwheel 24 and apply certain contact pressure to test specimen, the limit is rotated handwheel 24 limits and is observed the force value that shows in the software, fixing handwheel 24 when reaching the pressure that desire loads.
After test specimen is fixing; At test specimen surface arrangement temperature sensor 8; Can adopt the temperature sensor of contacts such as thermistor, ordinary hot galvanic couple; Also can adopt contactless infra-red heat galvanic couple etc. as temperature sensor, the sensor fixed support can be arranged on stiff end steel bushing 16 and a certain position above the sliding end steel bushing 18.Foil gauge is attached to the test specimen surface, and dynamic strain indicator should carry out automatic clear and input foil gauge sensitivity coefficient when using for the first time.
The test specimen machinery loading device that installs test specimen and sensor is put into damp and hot case 11, and the temperature and humidity when test is set on main control computer 1 keeps time enough to make the test specimen humiture reach setting value.Through the software setting measuring current, turn-on current source 3 is clicked the software start button and is tested then.Arrive the time after-current loading of setting and stop automatically, test findings is preserved automatically.
The power supply of turning off current source 3 and damp and hot case 11 is treated test specimen cooling back taking-up test specimen, carries out failure analysis and Mechanics Performance Testing.
This test macro can be made as zero and only carry out damp and hot damage test with current load, or does not use 11 in damp and hot case to carry out the electrical injuries test.
Claims (3)
1. carbon fiber enhancement resin base composite material heat-electric injury test macro, it is characterized in that: described test macro comprises damp and hot case (11), test specimen machinery loading device and control device; Wherein the test specimen machinery loading device is arranged on the inside of damp and hot case (11), and two test electrodes are installed on it; Part parts in the control device are installed on the test specimen machinery loading device, are used to control the electric current loading and the faulted condition parameter gatherer process of carbon fiber enhancement resin base composite material test specimen.
2. carbon fiber enhancement resin base composite material heat according to claim 1-electric injury test macro is characterized in that: described test specimen machinery loading device comprises base (12), casing (13), two guide rails (14), two pull bars (15), stiff end steel bushing (16), stiff end electrode (17), sliding end steel bushing (18), sliding end electrode (19), leading screw (20), force transducer support (21), conical gear group (22), main shaft (23) and handwheel (24); Wherein base (12) is that rectangle is tabular, is horizontally disposed with; Casing (13) is arranged on surface one end of base (12); Stiff end steel bushing (16) is arranged on the surperficial other end of base (12), and its inside is equipped with stiff end electrode (17); Article two, guide rail (14) is set in parallel in base (12) surface that is positioned between casing (13) and the stiff end steel bushing (16) along the length direction of base (12); Sliding end steel bushing (18) is fixed on two shoe surface on the guide rail (14), and both sides, top processing via hole runs through two pull bars (15); The two ends of two pull bars (15) that laterally arrange are separately fixed at stiff end steel bushing (16) and casing (13) is gone up on the sidewall inner face near stiff end steel bushing (16); Sliding end electrode (19) is installed in the inside of sliding end steel bushing (18); Stiff end electrode (17) and sliding end electrode (19) are gone up relative side and are exposed on the external, and are used for clamping test pieces and conduction; Sliding end steel bushing (18) and the contacted surface of sliding end electrode (19) and stiff end steel bushing (16) and the contacted surface spraying of stiff end electrode (17) one deck zirconia ceramics coating; Force transducer support (21) is installed in sliding end steel bushing (18) and goes up the side near casing (13), is provided with force cell (9) in it; One end of leading screw (20) is pressed on the force cell (9), and connects through flat key with force transducer support (21) hole inwall, and the other end runs through the inside that casing (13) extends to casing (13) through the bearing that is installed on casing (13) inner face; Main shaft (23) runs through on the side that is arranged on casing (13) through the bearing that is installed on casing (13) one sides; Conical gear group (22) is made up of first conical gear (25) and second conical gear (26); Wherein first conical gear (25) main shaft (23) the end key inner with being positioned at casing (13) is connected; The connection of second conical gear (26) flat key is installed in through feed screw nut (26) end of bearings on casing (13) inner face, and is meshed with first conical gear (25); Handwheel (24) then is installed in and is positioned at the outside end of casing (13) on the main shaft (23).
3. carbon fiber enhancement resin base composite material heat according to claim 1-electric injury test macro is characterized in that: described control device comprises main control computer (1), signal generator (2), current source (3), electric shunt (4), data acquisition unit (5), shunt voltage collection circuit (6), electrode voltage Acquisition Circuit (7), temperature sensor (8), force cell (9) and strain acquirement device (10); Wherein: main control computer (1) is the control core of whole test system, is used to accomplish signal controlling, data acquisition and storage operation; Signal generator (2) is the controllable signal generating means, and its input end is connected with main control computer (1), and output terminal is connected with current source (3), be used for producing corresponding signal according to the instruction of main control computer (1), thus the output current of Control current source (3); Current source (3) is a controllable current source; Be used to test specimen measuring current is provided; Its input end is connected with signal generator (2); Two output terminals respectively with the test specimen machinery loading device on stiff end electrode (17) be connected with sliding end electrode (19) and electric shunt (4), form a closed test loop; Electricity shunt (4) is the pure resistive device, is used for detecting the electric current of test loop; Data acquisition unit (5) is the multi-channel data acquisition circuit; Its output terminal is connected with main control computer (1); Input end is connected with shunt voltage collection circuit (6), electrode voltage Acquisition Circuit (7), temperature sensor (8), force cell (9) and strain acquirement device (10) respectively, is used for the necessary various signals of collecting test; Shunt voltage collection circuit (6) is the voltage signal acquisition circuit, is used to obtain the voltage at electric shunt (4) two ends; Electrode voltage Acquisition Circuit (7) is the voltage signal acquisition circuit, is used to obtain the voltage between stiff end electrode (17) and the sliding end electrode (19); Temperature sensor (8) is installed in the test specimen surface, is used to obtain the temperature information on test specimen surface; Force cell (9) is the pressure signal sensor, is installed on the test specimen machinery loading device, is used to obtain the pressure that test specimen bears; Strain acquirement device (10) is made up of strain testing appearance and foil gauge, is used to obtain the strain information of test specimen, and wherein foil gauge is installed in the test specimen surface, and it is connected with strain detector through private cable.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100453426A CN102590260B (en) | 2012-02-27 | 2012-02-27 | Heat-electric injury testing system of carbon fiber reinforced resin matrix composite material |
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| CN2012100453426A CN102590260B (en) | 2012-02-27 | 2012-02-27 | Heat-electric injury testing system of carbon fiber reinforced resin matrix composite material |
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| CN102590260A true CN102590260A (en) | 2012-07-18 |
| CN102590260B CN102590260B (en) | 2013-11-27 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104483341A (en) * | 2014-12-12 | 2015-04-01 | 广西科技大学 | Test method of temperature sensing performance of intelligent carbon fiber plate |
| CN106092903A (en) * | 2016-07-21 | 2016-11-09 | 国网河南省电力公司周口供电公司 | A kind of carbon fiber composite core wire inspection device and using method thereof |
| CN107655928A (en) * | 2017-10-30 | 2018-02-02 | 佛山科学技术学院 | A kind of big temperature difference environment thermoelectricity capability test device |
| CN117309668A (en) * | 2023-09-21 | 2023-12-29 | 东南大学 | Portable automatic detection equipment and detection method for steel wire corrosion |
| CN117309668B (en) * | 2023-09-21 | 2024-05-31 | 东南大学 | Portable automatic detection equipment and detection method for steel wire corrosion |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101551350A (en) * | 2009-05-18 | 2009-10-07 | 南昌航空大学 | Method of establishing damnification self-diagnosis system for carbon fiber enhancement resin base composite material |
-
2012
- 2012-02-27 CN CN2012100453426A patent/CN102590260B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101551350A (en) * | 2009-05-18 | 2009-10-07 | 南昌航空大学 | Method of establishing damnification self-diagnosis system for carbon fiber enhancement resin base composite material |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104483341A (en) * | 2014-12-12 | 2015-04-01 | 广西科技大学 | Test method of temperature sensing performance of intelligent carbon fiber plate |
| CN106092903A (en) * | 2016-07-21 | 2016-11-09 | 国网河南省电力公司周口供电公司 | A kind of carbon fiber composite core wire inspection device and using method thereof |
| CN106092903B (en) * | 2016-07-21 | 2021-11-05 | 国网河南省电力公司周口供电公司 | Carbon fiber composite core wire inspection device and using method thereof |
| CN107655928A (en) * | 2017-10-30 | 2018-02-02 | 佛山科学技术学院 | A kind of big temperature difference environment thermoelectricity capability test device |
| CN117309668A (en) * | 2023-09-21 | 2023-12-29 | 东南大学 | Portable automatic detection equipment and detection method for steel wire corrosion |
| CN117309668B (en) * | 2023-09-21 | 2024-05-31 | 东南大学 | Portable automatic detection equipment and detection method for steel wire corrosion |
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