CN106226166A - A kind of fatigue test method measuring antifreeze plate service life - Google Patents
A kind of fatigue test method measuring antifreeze plate service life Download PDFInfo
- Publication number
- CN106226166A CN106226166A CN201610554515.5A CN201610554515A CN106226166A CN 106226166 A CN106226166 A CN 106226166A CN 201610554515 A CN201610554515 A CN 201610554515A CN 106226166 A CN106226166 A CN 106226166A
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- Prior art keywords
- antifreeze plate
- fatigue
- test method
- service life
- fatigue test
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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
- G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending 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
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0073—Fatigue
-
- 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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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention provides a kind of fatigue test method measuring antifreeze plate service life, it is characterised in that comprise the steps: to carry out numerical modeling analysis for CRDM entirety；Numerical modeling analysis is carried out for designed antifreeze plate bending Equivalent Fatigue assay device；Above two analysis result is contrasted；Carry out fatigue test based on bending Equivalent Fatigue assay device, and draw graph of relation.The fatigue test method measuring antifreeze plate service life that the present invention provides, solve the problem that under CRDM actual working state, antifreeze plate destructive process cannot directly be observed and measure, by the bending Equivalent Fatigue test method after numerical modeling analysis verification, it is analyzed for antifreeze plate failure mechanism under armature percussion and studies and make antifreeze plate Fatigue Life Prediction.
Description
Technical field
The present invention relates to nuclear power engineering field, be specifically related to a kind of for measuring in nuclear power station CRDM every magnetic
The warpage fatigue behaviour of sheet and the fatigue test method in service life thereof.
Background technology
AP1000 CRDM (CRDM) is the machinery of a kind of Electromagnetic Drive.In presurized water reactor, control rod
The effect of drive mechanism is to position C&P systems in vertical direction.Changed by CRDM or keep control rod group
The height of the vertical direction of part, it is achieved the start and stop of nuclear reactor, and in normal reactor operation, regulate or maintain the merit of reactor core
Rate level and under accident conditions scram.It is that the key directly affecting normal reactor operation and security reliability sets
One of standby.
Antifreeze plate is as the critical component in CRDM, and it is jumped the dynamic response after impact with overall by step
The service life of mechanism is directly related.
In view of CRDM generally airtight cavity, prior art cannot under its duty directly detection every
The loaded state of magnetic sheet and degree of impairment, need to seek intuitively to measure antifreeze plate under corresponding operating mode fatigue behaviour and
The test method in service life.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, propose a kind of fatigue test method measuring antifreeze plate service life.
Measure the fatigue test method in antifreeze plate service life to comprise the steps:
S1. carry out numerical modeling analysis for CRDM entirety, obtain antifreeze plate by armature percussion
Lower produced first principal stress and sag value；
S2. carry out numerical modeling analysis for designed antifreeze plate bending Equivalent Fatigue assay device, obtain antifreeze plate
Produced first principal stress and sag value under different bending load effects；
S3. above two analysis result being contrasted, whether the bending Equivalent Fatigue assay device designed by checking may be used
For studying the fatigue rupture mechanism of antifreeze plate；
S4. carry out fatigue test based on bending Equivalent Fatigue assay device, and draw graph of relation.
Preferably, in described step S1, after suitably simplifying for CRDM entirety, utilize numerical simulation
Three-dimensional Axisymmetric dynamic finite element analysis model set up by software, obtains armature and is produced with antifreeze plate during 0.404m/s velocity shock
First principal stress and sag value；
Preferably, in described step S2, the antifreeze plate of unlike material is fabricated to simple tension code test part and carries out
Simple tension is tested, and the test data obtained elastic-plastic analysis process after numerical modeling obtains armature with 0.404m/s
First principal stress and sag value produced by antifreeze plate during velocity shock and under different warpage load effect.
Preferably, in described step S3, scratch according to produced first principal stress size, position and produced bending
Degree size, verifies whether designed bending Equivalent Fatigue assay device can be used for studying the fatigue rupture mechanism of antifreeze plate.
Preferably, in described step S4, carry out fatigue test based on bending Equivalent Fatigue assay device, apply to preload
0.1KN also uses displacement control mode, obtains different bending loads and corresponding antifreeze plate fatigue life, to draw pass
It it is curve chart.
Compared with prior art, the method have the advantages that
1, the fatigue test method measuring antifreeze plate service life that the present invention provides, solves CRDM real
The problem that under the duty of border, antifreeze plate destructive process cannot directly be observed and measure, curved by after numerical modeling analysis verification
Bent Equivalent Fatigue test method, for antifreeze plate failure mechanism under armature percussion be analyzed and study and make every
Magnetic sheet Fatigue Life Prediction.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of a kind of fatigue test method measuring antifreeze plate service life of the present invention.
Fig. 2 is to carry out, for CRDM entirety, the antifreeze plate Stress Map that numerical modeling analysis obtains.
Fig. 3 be for designed antifreeze plate bending Equivalent Fatigue assay device carry out that numerical modeling analysis obtains every magnetic
Sheet Stress Map.
Fig. 4 is to be curved, for 304 stainless steel materials, bending displacement and the first master that numerical analysis obtains in embodiment
Stress diagram.
Fig. 5 is to be curved, for 625 stainless steel materials, bending displacement and the first master that numerical analysis obtains in embodiment
Stress diagram.
Fig. 6 is to be curved Equivalent Fatigue for 304 stainless steel materials in embodiment to test the bending displacement obtained with tired
Labor life-span logarithm value graph of a relation
Fig. 7 is to be curved Equivalent Fatigue for 625 stainless steel materials in embodiment to test the bending displacement obtained with tired
Labor life-span logarithm value graph of a relation.
Detailed description of the invention
Understandable for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from, real with concrete below in conjunction with the accompanying drawings
The present invention is further detailed explanation to execute mode.
Shown in Fig. 1-7, measure the fatigue test method in antifreeze plate service life and comprise the steps:
S1. carry out numerical modeling analysis for CRDM entirety, obtain antifreeze plate by armature percussion
Lower produced first principal stress and sag value；
S2. carry out numerical modeling analysis for designed antifreeze plate bending Equivalent Fatigue assay device, obtain antifreeze plate
Produced first principal stress and sag value under different bending load effects；
S3. above two analysis result being contrasted, whether the bending Equivalent Fatigue assay device designed by checking may be used
For studying the fatigue rupture mechanism of antifreeze plate；
S4. carry out fatigue test based on bending Equivalent Fatigue assay device, and draw graph of relation.
In described step S1, after suitably simplifying for CRDM entirety, numerical simulation software is utilized to build
Vertical Three-dimensional Axisymmetric dynamic finite element analysis model, obtains armature with produced by antifreeze plate during 0.404m/s velocity shock first
Principal stress and sag value；
In described step S2, the antifreeze plate of unlike material is fabricated to simple tension code test part and carries out simple tension
Test, the test data obtained elastic-plastic analysis process after numerical modeling, obtain armature with 0.404m/s velocity shock
Time and different warpage load effect under first principal stress and sag value produced by antifreeze plate.
In described step S3, according to produced first principal stress size, position and produced sag size,
Verify whether designed bending Equivalent Fatigue assay device can be used for studying the fatigue rupture mechanism of antifreeze plate.
In described step S4, carry out fatigue test based on bending Equivalent Fatigue assay device, apply preload 0.1KN and use
Displacement control mode, obtains different bending loads and corresponding antifreeze plate fatigue life, to draw graph of relation.
Compared with prior art, the present embodiment has the advantages that
1, the fatigue test method measuring antifreeze plate service life that the present embodiment provides, solves CRDM
The problem that under actual working state, antifreeze plate destructive process cannot directly be observed and measure, after numerical modeling analysis verification
Bending Equivalent Fatigue test method, is analyzed for antifreeze plate failure mechanism under armature percussion and studies and make
Antifreeze plate Fatigue Life Prediction.
In this specification, each embodiment uses the mode gone forward one by one to describe, and what each embodiment stressed is and other
The difference of embodiment, between each embodiment, identical similar portion sees mutually.For system disclosed in embodiment
For, owing to corresponding to the method disclosed in Example, so describe is fairly simple, relevant part sees method part explanation
?.
Those skilled in the art can use different methods to realize described function to each specifically should being used for, but
It is this realization it is not considered that beyond the scope of this invention.
Obviously, those skilled in the art can carry out various change and the modification spirit without deviating from the present invention to invention
And scope.So, if the present invention these amendment and modification belong to the claims in the present invention and equivalent technologies thereof scope it
In, then the present invention is also intended to change and including modification include these.
Claims (5)
1. the fatigue test method measuring antifreeze plate service life, it is characterised in that comprise the steps:
S1. carry out numerical modeling analysis for CRDM entirety, obtain antifreeze plate by institute under armature percussion
The first principal stress produced and sag value；
S2. carry out numerical modeling analysis for designed antifreeze plate bending Equivalent Fatigue assay device, obtain antifreeze plate not
Produced first principal stress and sag value under same bending load effect；
S3. above two analysis result being contrasted, whether the bending Equivalent Fatigue assay device designed by checking can be used for
The fatigue rupture mechanism of research antifreeze plate；
S4. carry out fatigue test based on bending Equivalent Fatigue assay device, and draw graph of relation.
The fatigue test method in measurement the most according to claim 1 antifreeze plate service life, it is characterised in that described step
In S1, after suitably simplifying for CRDM entirety, numerical simulation software is utilized to set up Three-dimensional Axisymmetric dynamic
Finite element analysis model, obtains armature and scratches with first principal stress produced by antifreeze plate during 0.404m/s velocity shock and bending
Angle value；
The fatigue test method in measurement the most according to claim 1 antifreeze plate service life, it is characterised in that described step
In S2, the antifreeze plate of unlike material is fabricated to simple tension code test part and carries out simple tension test, the test obtained
Data elastic-plastic analysis process after the numerical modeling, obtains armature with during 0.404m/s velocity shock and different warpage
First principal stress produced by antifreeze plate and sag value under load effect.
The fatigue test method in measurement the most according to claim 1 antifreeze plate service life, it is characterised in that described step
In S3, according to produced first principal stress size, position and produced sag size, verify designed curved
Whether bent Equivalent Fatigue assay device can be used for studying the fatigue rupture mechanism of antifreeze plate.
The fatigue test method in measurement the most according to claim 1 antifreeze plate service life, it is characterised in that described step
In S4, carry out fatigue test based on bending Equivalent Fatigue assay device, apply preload 0.1KN and use displacement control mode,
To different bending loads and corresponding antifreeze plate fatigue life, to draw graph of relation.
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| CN201610554515.5A CN106226166A (en) | 2016-07-14 | 2016-07-14 | A kind of fatigue test method measuring antifreeze plate service life |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002286586A (en) * | 2001-03-27 | 2002-10-03 | Toshiba Corp | Instrument for measuring load displacement amount |
| CN2540254Y (en) * | 2002-05-24 | 2003-03-19 | 王安平 | Permanent-magnet suction cup |
| US6557421B2 (en) * | 2000-07-21 | 2003-05-06 | Westinghouse Electric Company Llc | Mandrel supported tensile test to evaluate weld bonding |
| CN1587967A (en) * | 2004-08-10 | 2005-03-02 | 东华大学 | Measuring device for flexural fatigue property of flexible material |
| CN200993627Y (en) * | 2006-12-01 | 2007-12-19 | 北京工业大学 | Microstructure Bending-torsion fatigue test device based on ultra-magnetostrictive principle |
| CN101614636A (en) * | 2009-06-16 | 2009-12-30 | 西南交通大学 | Clamp for rail fatigue experiment under the moment of flexure effect |
| CN103592195A (en) * | 2013-11-27 | 2014-02-19 | 西南交通大学 | Machine and method for slight impact wear test on nuclear power station steam generator heat-transfer pipe |
-
2016
- 2016-07-14 CN CN201610554515.5A patent/CN106226166A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6557421B2 (en) * | 2000-07-21 | 2003-05-06 | Westinghouse Electric Company Llc | Mandrel supported tensile test to evaluate weld bonding |
| JP2002286586A (en) * | 2001-03-27 | 2002-10-03 | Toshiba Corp | Instrument for measuring load displacement amount |
| CN2540254Y (en) * | 2002-05-24 | 2003-03-19 | 王安平 | Permanent-magnet suction cup |
| CN1587967A (en) * | 2004-08-10 | 2005-03-02 | 东华大学 | Measuring device for flexural fatigue property of flexible material |
| CN200993627Y (en) * | 2006-12-01 | 2007-12-19 | 北京工业大学 | Microstructure Bending-torsion fatigue test device based on ultra-magnetostrictive principle |
| CN101614636A (en) * | 2009-06-16 | 2009-12-30 | 西南交通大学 | Clamp for rail fatigue experiment under the moment of flexure effect |
| CN103592195A (en) * | 2013-11-27 | 2014-02-19 | 西南交通大学 | Machine and method for slight impact wear test on nuclear power station steam generator heat-transfer pipe |
Non-Patent Citations (1)
| Title |
|---|
| 曲大庄: "核电站控制棒驱动机构隔磁片应力分析", 《动力工程学报》 * |
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