CN104034600A - Fatigue crack propagation experiment testing system under extremely high temperature environment - Google Patents
Fatigue crack propagation experiment testing system under extremely high temperature environment Download PDFInfo
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- CN104034600A CN104034600A CN201410213309.9A CN201410213309A CN104034600A CN 104034600 A CN104034600 A CN 104034600A CN 201410213309 A CN201410213309 A CN 201410213309A CN 104034600 A CN104034600 A CN 104034600A
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Abstract
The invention discloses a fatigue crack propagation experiment testing system under extremely high temperature environment. The fatigue crack propagation experiment testing system is composed of a fatigue tester, an upper conversion joint, a lower conversion joint, an upper sample clamp, a lower sample clamp, a cooler, a high temperature furnace, a positioning pin, a crack observing system and a sample, wherein the upper sample clamp and the lower sample clamp are mounted on the fatigue tester through the upper conversion joint and the lower conversion joint; the sample is connected with the upper sample clamp and the lower sample clamp; the positioning pin passes through the upper sample clamp and the lower sample clamp, and a positioning hole of the sample is arranged, so that the sample is positioned; the cooler is connected with the upper conversion joint and the lower conversion joint through a water inlet pipe and a water outlet pipe; a testing part in the middle of the sample is wrapped by the high temperature furnace, the extremely high temperature environment is achieved by using a resistance wire to heat; crack propagation condition is recorded by a computer through a microscope in the crack observing system. The fatigue crack propagation experiment testing system is simple in structure and convenient to operate, is used for crack propagation performance experiment test under the extremely high temperature environment; the test result has important engineering application value for structural damage tolerance evaluation.
Description
Technical field
The present invention relates to the fatigue crack propagation test test macro under a kind of very high temperature environment, belong to experimental test technical field.
Background technology
Construction material and structure in use, are all being born alternate load, and fatigure failure can occur, and for ensureing its security, need to test its fatigue behaviour, through technical development for many years, have already formed perfect fatigue property test standard; But construction material and structure particularly engine material are usually on active service and are used under very high temperature environment, therefore, must measure the Crack Extension performance under its very high temperature environment, for the damage tolerance assessment under its very high temperature environment.At present, On Crack Propagation performance test both at home and abroad, mainly by magnifier, rule by artificial observation and record, precision is low and be difficult to use in the crack Propagation performance test under very high temperature environment, and for the very high temperature environment more than 1000 ℃, still lack at present effective Crack Extension performance test system.For this reason, the present invention is integrated into the fatigue crack propagation test test macro under very high temperature environment by plain fatigue testing machine, X-over, specimen holder, cooler, high temperature furnace, crackle recording geometry and sample, for Crack Extension performance experimental test under very high temperature environment, test result has important engineering using value for structural damage Tolerance Evaluation.
Summary of the invention
1, object: the object of this invention is to provide the fatigue crack propagation test test macro under a kind of very high temperature environment, the fatigue crack propagation test test under very high temperature environment for material or structure.
2, technical scheme: the fatigue crack propagation test test macro under a kind of very high temperature environment of the present invention, is comprised of fatigue tester, upper and lower X-over, upper and lower specimen holder, cooler, high temperature furnace, tommy, crackle recording geometry and sample.Position annexation between them is as follows: upper and lower specimen holder is arranged on fatigue tester by upper and lower X-over, sample is connected with upper and lower specimen holder, and positions by the pilot hole that tommy passes upper and lower specimen holder and sample; Cooler is connected with upper and lower X-over by inlet tube and outlet tube; High temperature furnace wraps in the inside by the test position in the middle of sample, by Resistant heating, realizes very high temperature environment; Crackle recording geometry by microscope by computer recording Crack Extension situation.Wherein, fatigue tester, upper and lower X-over, upper and lower specimen holder, tommy and sample link together by series sequence:
Fatigue tester → upper X-over → cooler → upper specimen holder → tommy → sample → tommy → lower specimen holder → cooler → lower X-over → fatigue tester
Described fatigue tester is routine low-frequency fatigue test machine, in order to sample is applied to alternation fatigue load, the load range of fatigue tester need be greater than the test load of sample, can be the conventional fatigue testers such as MTS, INSTRON or self-control fatigue tester.
Described sample is the Crack Extension sample of various different materials and type, and this sample is the rectangular strip part that respectively there are 5 holes at two ends, and the bare terminal end at Crack Extension sample two ends can link together with specimen holder, and applies alternation fatigue load.The size and dimension of sample can design with reference to the standard in the test method > > (ASTM E647-2008:Standard Test Method for Measurement of Fatigue Crack Growth Rates) of < < measurement propagation rate of fatigue crack by means.
Described upper and lower two X-overs are many Step Shafts shape parts, in order to connect fatigue tester and specimen holder, on upper and lower X-over, there is Cooling Holes, for connecting cooling water pipe, need, according to the version Design and manufacture of high/low temperature environmental cabinet, can adopt common alloy steel material to make.
Described upper and lower specimen holder is that the 5 hole rectangular-shaped pieces by cylinder and trough of belt are combined into one, and in order to clamping sample to be installed, need, according to the shape and size Design and manufacture of sample holder end, can and apply alternation fatigue load by sample firm grip.
Described cooler is connected with upper and lower specimen holder by inlet tube and outlet tube, by water pump, carries pure water to circulate, so that upper and lower specimen holder is freezed.
Described high temperature furnace is Resistant heating stove, is opposite opened cylindric, can realize in order to the heating of resistance wire the very high temperature environment of the stove heart, and controlling resistance silk heating power can be realized the adjusting to different temperatures scope, and its temperature range will meet testing requirements.Pay particular attention to, high temperature furnace must arrange the watch window that can have an X-rayed, so that crackle recording geometry observation Crack Extension situation.
Described crackle measuring system is that three axles are servo-actuated, the microscope of being furnished with high resolving power and enlargement factor, by computing machine, automatically record Crack Extension situation (comprising the pictorial information of crack morphology and the crack size of demarcation), can obtain Crack Extension situation corresponding to different cycle indexes under given alternate load.
Described tommy is the circular shaft part with shoulder and through hole of conventional use.
All devices, according to after testing requirements connection and debugging, just can complete the fatigue crack propagation test test under very high temperature environment according to concrete testing requirements.This cover system efficiently solves the fatigue crack propagation test test problem under very high temperature environment.
3, advantage and effect: the invention has the beneficial effects as follows and can complete material or the fatigue crack propagation test test of structure under very high temperature environment, and this system has the easy to operate and high feature of measuring accuracy.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is for the M of very high temperature torture test (T) sample schematic diagram.
Fig. 2 is upper and lower adapter coupling schematic diagram.
Fig. 3 is upper and lower specimen holder schematic diagram.
Fig. 4 is tommy schematic diagram.
Fig. 5 is for carrying out the high temperature furnace schematic diagram of very high temperature crack expansion test.
Fig. 6 is cooler schematic diagram.
Fig. 7 is fatigue tester schematic diagram.
Fig. 8 is the fatigue crack propagation test test system structure figure under very high temperature environment.
In Fig. 8: 1. fatigue tester, 2. upper and lower X-over, 3. upper and lower specimen holder, 4. tommy, 5. high temperature furnace, 6. sample, 7. crackle measuring system, 8. cooler
Embodiment
Embodiment one: the specific embodiment of the present invention is described in conjunction with Fig. 1 to Fig. 8.Fatigue crack propagation test test macro under a kind of very high temperature environment of the present invention, is comprised of fatigue tester 1, upper and lower X-over 2, upper and lower specimen holder 3, tommy 4, high temperature furnace 5, sample 6, crackle recording geometry 7 and cooler 8.In Fig. 8, upper and lower specimen holder 3 is connected with sample 6, and the pilot hole through upper and lower specimen holder 3 and sample 6 positions by tommy 4, can guarantee that sample 6 evenly axially loads; By upper and lower adapter coupling 2, fatigue tester 1 is connected with upper and lower specimen holder 3; Cooler 8 is connected with upper and lower X-over 2 respectively by inlet tube and outlet tube; Crack propagation process by 7 pairs of samples of the servo-actuated crackle measuring system of three axles of computerizeing control is monitored and record.After above equipment and the integrated docking of device, just formed the fatigue crack propagation test test macro under very high temperature environment.
In very high temperature torture test, the design of sample is very crucial, must be able to guarantee evenly to apply axial alternate load, Fig. 1 has specifically provided a kind of center breach plate tensile sample for very high temperature torture test, concrete dimensional parameters can be referring to Fig. 1, retaining part at sample two ends has designed pilot hole, can play axial location effect.The dimensional parameters of upper and lower specimen holder 3 as shown in Figure 3, has hole and a pilot hole of four fastening bolts.The concrete dimensional parameters of upper and lower adapter coupling 2 and tommy 4 as shown in Figure 2 and Figure 4.Cooler as shown in Figure 7, is connected with upper and lower specimen holder by inlet tube and outlet tube, carries pure water to circulate, so that specimen holder is freezed by water pump.Fatigue tester as shown in Figure 7, can use the fatigue testers such as commercial MTS, INSTRON or self-control fatigue tester.After sample 6 and upper and lower specimen holder 3 are connected to location by tommy 4 and clamp with fastening bolt, then by upper and lower adapter coupling 2, specimen holder 3 is connected with being equipped with the fatigue tester 1 of high temperature furnace 5.Cooling water pipe on cooler 8 is connected to specimen holder is freezed with the Cooling Holes on upper and lower X-over 2.Pay particular attention to, the watch window that must setting on high temperature furnace can have an X-rayed, so that crackle test macro 7 monitoring crack spread scenarios.Crackle measuring system 7 monitoring sample 6 Crack Extension situations, crackle measuring system 7 is that three axles are servo-actuated, the microscope of being furnished with high resolving power and enlargement factor, by computing machine, automatically record Crack Extension situation (comprising the pictorial information of crack morphology and the crack size of demarcation), can obtain Crack Extension situation corresponding to different cycle indexes under given alternate load.All devices, according to after testing requirements connection and debugging, just can complete the fatigue crack propagation test test under very high temperature environment according to concrete testing requirements.
Embodiment two: the difference of present embodiment and embodiment one is the design of sample, sample can be center band perforate or not with the plate of perforate, dimensional parameters can be from embodiment one different, other design philosophy and connected mode of the fatigue crack propagation test test macro under very high temperature environment is identical with embodiment one.
Embodiment three: the difference of present embodiment and embodiment one is the design of sample, sample can clavate or other versions, other design philosophy and connected mode of the fatigue crack propagation test test macro under very high temperature environment is identical with embodiment one.
Fig. 5, Fig. 6, Fig. 7 are high temperature furnace, cooler and the fatigue tester schematic diagram for carrying out very high temperature crack expansion test.
Claims (1)
1. the fatigue crack propagation test test macro under very high temperature environment, is characterized in that: it is comprised of fatigue tester, upper and lower X-over, upper and lower specimen holder, cooler, high temperature furnace, tommy, crackle recording geometry and sample; Upper and lower specimen holder is arranged on fatigue tester by upper and lower X-over, and sample is connected with upper and lower specimen holder, and positions by the pilot hole that tommy passes upper and lower specimen holder and sample; Cooler is connected with upper and lower X-over by inlet tube and outlet tube; High temperature furnace wraps in the inside by the test position in the middle of sample, by Resistant heating, realizes very high temperature environment; Crackle recording geometry by microscope by computer recording Crack Extension situation; Wherein, fatigue tester, upper and lower X-over, upper and lower specimen holder, tommy and sample link together by series sequence:
Fatigue tester → upper X-over → cooler → upper specimen holder → tommy → sample → tommy → lower specimen holder → cooler → lower X-over → fatigue tester
Described fatigue tester is low-frequency fatigue test machine, and in order to sample is applied to alternation fatigue load, the load range of fatigue tester need be greater than the test load of sample, is conventional fatigue tester or self-control fatigue tester;
Described sample is the Crack Extension sample of various different materials and type, and this sample is the rectangular strip part that respectively there are 5 holes at two ends, and the bare terminal end at Crack Extension sample two ends can link together with specimen holder, and applies alternation fatigue load; The size and dimension of sample designs with reference to the standard in the test method > > of < < measurement propagation rate of fatigue crack by means;
Described upper and lower two X-overs are many Step Shafts shape parts, in order to connect fatigue tester and specimen holder, on upper and lower X-over, there is Cooling Holes, for connecting cooling water pipe, need, according to the version Design and manufacture of high/low temperature environmental cabinet, adopt common alloy steel material to make;
Described upper and lower specimen holder is that the 5 hole rectangular-shaped pieces by cylinder and trough of belt are combined into one, and in order to clamping sample to be installed, need, according to the shape and size Design and manufacture of sample holder end, can and apply alternation fatigue load by sample firm grip;
Described cooler is connected with upper and lower specimen holder by inlet tube and outlet tube, by water pump, carries pure water to circulate, so that upper and lower specimen holder is freezed;
Described high temperature furnace is Resistant heating stove, is opposite opened cylindric, and the heating of sharp resistance wire realizes the very high temperature environment of the stove heart, and controlling resistance silk heating power is realized the adjusting to different temperatures scope, and its temperature range will meet testing requirements; High temperature furnace must arrange the watch window that can have an X-rayed, so that crackle recording geometry observation Crack Extension situation;
Described crackle measuring system is that three axles are servo-actuated, the microscope of being furnished with high resolving power and enlargement factor, by computing machine, automatically record Crack Extension situation, comprise the pictorial information of crack morphology and the crack size of demarcation, obtain Crack Extension situation corresponding to different cycle indexes under given alternate load;
Described tommy is the circular shaft part with shoulder and through hole.
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104931373A (en) * | 2015-06-12 | 2015-09-23 | 中国科学院金属研究所 | Corrosion fatigue crack propagation testing device |
| CN105021473A (en) * | 2015-07-06 | 2015-11-04 | 北京航空航天大学 | Cryogenic crack expansibility characterization and life estimation method |
| CN105067457A (en) * | 2015-07-06 | 2015-11-18 | 北京航空航天大学 | Corrosion crack expansibility characterization and life estimation method |
| CN105158056A (en) * | 2015-07-10 | 2015-12-16 | 北京航空航天大学 | Pretension aviation part heat-fatigue strength integrated measurement platform |
| CN105973732A (en) * | 2015-12-11 | 2016-09-28 | 北京强度环境研究所 | Temperature vibration fatigue test on-line loading device and method thereof |
| CN106546630A (en) * | 2016-12-12 | 2017-03-29 | 北京航空航天大学 | A kind of environment simulator for the test of very high temperature Crack Extension performance |
| CN106706323A (en) * | 2016-12-12 | 2017-05-24 | 北京航空航天大学 | Environment simulator used in extremely-high-temperature fatigue performance test of engine materials |
| CN107782592A (en) * | 2016-08-30 | 2018-03-09 | 中国石油天然气股份有限公司 | Girth joint crack defect preparation method and system |
| CN107807025A (en) * | 2017-09-28 | 2018-03-16 | 中国航发动力股份有限公司 | A kind of method for prefabricating of metal material cycles left life-span specimen surface crackle |
| CN108037019A (en) * | 2017-12-07 | 2018-05-15 | 四川大学 | A kind of experimental system for the test of composite material mechanical behavior under high temperature |
| CN108426781A (en) * | 2018-01-31 | 2018-08-21 | 攀枝花市旭鼎机械制造有限公司 | A kind of experimental system for composite materials property test |
| CN109556954A (en) * | 2019-01-21 | 2019-04-02 | 南昌航空大学 | Test the fatigue tester of components fracture characteristic under the effect of different alternate stresses |
| CN109884124A (en) * | 2019-02-23 | 2019-06-14 | 西安科技大学 | A kind of caliberating device of immersion method crack propagation signal |
| CN111220462A (en) * | 2020-01-20 | 2020-06-02 | 中国特种设备检测研究院 | Creep testing system |
| CN112179265A (en) * | 2020-09-25 | 2021-01-05 | 大连理工大学 | Device and method for calibrating static performance of high-temperature strain sensor |
| CN114544654A (en) * | 2022-03-04 | 2022-05-27 | 北京航空航天大学 | Tiny crack growth in-situ test and observation device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1928529A (en) * | 2005-09-09 | 2007-03-14 | 侯贵仓 | Test clamp for disc blade of aircraft engine |
| CN101608988A (en) * | 2009-07-20 | 2009-12-23 | 江苏大学 | A kind of uni-directional stretching test clamp for warm shaping of metal plate |
| CN201716232U (en) * | 2010-06-23 | 2011-01-19 | 中国科学院金属研究所 | Water-cooled clamp for high-temperature fatigue test of metal plate-shaped sample |
| CN102297804A (en) * | 2010-06-23 | 2011-12-28 | 中国科学院金属研究所 | Metal plate specimen water-cooling clamp for high temperature fatigue test |
| CN103105336A (en) * | 2013-01-11 | 2013-05-15 | 华东理工大学 | Micro sample creep and creep fatigue test system and test method |
| CN103439201A (en) * | 2013-08-19 | 2013-12-11 | 北京航空航天大学 | System for testing fatigue in high/low temperature environment |
| CN103454165A (en) * | 2013-08-19 | 2013-12-18 | 北京航空航天大学 | Testing system for fatigue crack propagation test under high/low temperature environment |
-
2014
- 2014-05-20 CN CN201410213309.9A patent/CN104034600A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1928529A (en) * | 2005-09-09 | 2007-03-14 | 侯贵仓 | Test clamp for disc blade of aircraft engine |
| CN101608988A (en) * | 2009-07-20 | 2009-12-23 | 江苏大学 | A kind of uni-directional stretching test clamp for warm shaping of metal plate |
| CN201716232U (en) * | 2010-06-23 | 2011-01-19 | 中国科学院金属研究所 | Water-cooled clamp for high-temperature fatigue test of metal plate-shaped sample |
| CN102297804A (en) * | 2010-06-23 | 2011-12-28 | 中国科学院金属研究所 | Metal plate specimen water-cooling clamp for high temperature fatigue test |
| CN103105336A (en) * | 2013-01-11 | 2013-05-15 | 华东理工大学 | Micro sample creep and creep fatigue test system and test method |
| CN103439201A (en) * | 2013-08-19 | 2013-12-11 | 北京航空航天大学 | System for testing fatigue in high/low temperature environment |
| CN103454165A (en) * | 2013-08-19 | 2013-12-18 | 北京航空航天大学 | Testing system for fatigue crack propagation test under high/low temperature environment |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104931373A (en) * | 2015-06-12 | 2015-09-23 | 中国科学院金属研究所 | Corrosion fatigue crack propagation testing device |
| CN105021473B (en) * | 2015-07-06 | 2017-07-11 | 北京航空航天大学 | A kind of low-temperature cracks scalability characterizes the method with life estimate |
| CN105021473A (en) * | 2015-07-06 | 2015-11-04 | 北京航空航天大学 | Cryogenic crack expansibility characterization and life estimation method |
| CN105067457A (en) * | 2015-07-06 | 2015-11-18 | 北京航空航天大学 | Corrosion crack expansibility characterization and life estimation method |
| CN105067457B (en) * | 2015-07-06 | 2017-09-15 | 北京航空航天大学 | A kind of corrosion cracking scalability characterizes the method with life estimate |
| CN105158056A (en) * | 2015-07-10 | 2015-12-16 | 北京航空航天大学 | Pretension aviation part heat-fatigue strength integrated measurement platform |
| CN105973732A (en) * | 2015-12-11 | 2016-09-28 | 北京强度环境研究所 | Temperature vibration fatigue test on-line loading device and method thereof |
| CN107782592A (en) * | 2016-08-30 | 2018-03-09 | 中国石油天然气股份有限公司 | Girth joint crack defect preparation method and system |
| CN106706323A (en) * | 2016-12-12 | 2017-05-24 | 北京航空航天大学 | Environment simulator used in extremely-high-temperature fatigue performance test of engine materials |
| CN106546630A (en) * | 2016-12-12 | 2017-03-29 | 北京航空航天大学 | A kind of environment simulator for the test of very high temperature Crack Extension performance |
| CN107807025A (en) * | 2017-09-28 | 2018-03-16 | 中国航发动力股份有限公司 | A kind of method for prefabricating of metal material cycles left life-span specimen surface crackle |
| CN108037019A (en) * | 2017-12-07 | 2018-05-15 | 四川大学 | A kind of experimental system for the test of composite material mechanical behavior under high temperature |
| CN108426781A (en) * | 2018-01-31 | 2018-08-21 | 攀枝花市旭鼎机械制造有限公司 | A kind of experimental system for composite materials property test |
| CN109556954A (en) * | 2019-01-21 | 2019-04-02 | 南昌航空大学 | Test the fatigue tester of components fracture characteristic under the effect of different alternate stresses |
| CN109884124A (en) * | 2019-02-23 | 2019-06-14 | 西安科技大学 | A kind of caliberating device of immersion method crack propagation signal |
| CN111220462A (en) * | 2020-01-20 | 2020-06-02 | 中国特种设备检测研究院 | Creep testing system |
| CN112179265A (en) * | 2020-09-25 | 2021-01-05 | 大连理工大学 | Device and method for calibrating static performance of high-temperature strain sensor |
| CN112179265B (en) * | 2020-09-25 | 2021-08-10 | 大连理工大学 | Device and method for calibrating static performance of high-temperature strain sensor |
| CN114544654A (en) * | 2022-03-04 | 2022-05-27 | 北京航空航天大学 | Tiny crack growth in-situ test and observation device |
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Application publication date: 20140910 |