CONSTRAINT EFFECT ANALYSIS OF THE SEMI-ELLIPTICAL SURFACE CRACK FOR A REACTOR VESSEL SUBJECTED TO PRESSURIZED
The specimen is a reactor pressure vessel with a semi-elliptical surface crack with axial orientation and its 3D finite element numerical modeling is built. Based on J-A<sub>2</sub> two parameters method,analysis is performed by considering constraint effect,at T = 561 K,p = 10 MPa. Thre...
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Editorial Office of Journal of Mechanical Strength
2017-01-01
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| Series: | Jixie qiangdu |
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| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2017.05.044 |
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| author | WANG ZhongXian GUO HuaJing |
| author_facet | WANG ZhongXian GUO HuaJing |
| author_sort | WANG ZhongXian |
| collection | DOAJ |
| description | The specimen is a reactor pressure vessel with a semi-elliptical surface crack with axial orientation and its 3D finite element numerical modeling is built. Based on J-A<sub>2</sub> two parameters method,analysis is performed by considering constraint effect,at T = 561 K,p = 10 MPa. Three different aspect ratio（ a/c） and Ramberg-Osgood exponent（ n） is analylized,namely a/c = 1/2,1/3,1/5（ a = 20 mm,c = 40 mm,60 mm,100 mm） and n = 10,15,20. The corresponding J-integral and constraint parameter A<sub>2</sub> is gained. The research results show that: J-integral increases with the decrease of aspect ratio a/c,and RambergOsgood exponent（ n） almost has no effect on J-integral. The increase of Ramberg-Osgood exponent（ n） will weaken the effect of aspect ratio a/c on A<sub>2</sub>. The most serious point is the deepest point of a crack. |
| format | Article |
| id | doaj-art-884db421b9c546a58ef6146d69a2afac |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2017-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-884db421b9c546a58ef6146d69a2afac2025-01-15T02:33:49ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692017-01-01391251125430599995CONSTRAINT EFFECT ANALYSIS OF THE SEMI-ELLIPTICAL SURFACE CRACK FOR A REACTOR VESSEL SUBJECTED TO PRESSURIZEDWANG ZhongXianGUO HuaJingThe specimen is a reactor pressure vessel with a semi-elliptical surface crack with axial orientation and its 3D finite element numerical modeling is built. Based on J-A<sub>2</sub> two parameters method,analysis is performed by considering constraint effect,at T = 561 K,p = 10 MPa. Three different aspect ratio（ a/c） and Ramberg-Osgood exponent（ n） is analylized,namely a/c = 1/2,1/3,1/5（ a = 20 mm,c = 40 mm,60 mm,100 mm） and n = 10,15,20. The corresponding J-integral and constraint parameter A<sub>2</sub> is gained. The research results show that: J-integral increases with the decrease of aspect ratio a/c,and RambergOsgood exponent（ n） almost has no effect on J-integral. The increase of Ramberg-Osgood exponent（ n） will weaken the effect of aspect ratio a/c on A<sub>2</sub>. The most serious point is the deepest point of a crack.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2017.05.044Semi-elliptical surface crackHigh temperature and pressureConstraint effectJ-integralConstraint parameter |
| spellingShingle | WANG ZhongXian GUO HuaJing CONSTRAINT EFFECT ANALYSIS OF THE SEMI-ELLIPTICAL SURFACE CRACK FOR A REACTOR VESSEL SUBJECTED TO PRESSURIZED Jixie qiangdu Semi-elliptical surface crack High temperature and pressure Constraint effect J-integral Constraint parameter |
| title | CONSTRAINT EFFECT ANALYSIS OF THE SEMI-ELLIPTICAL SURFACE CRACK FOR A REACTOR VESSEL SUBJECTED TO PRESSURIZED |
| title_full | CONSTRAINT EFFECT ANALYSIS OF THE SEMI-ELLIPTICAL SURFACE CRACK FOR A REACTOR VESSEL SUBJECTED TO PRESSURIZED |
| title_fullStr | CONSTRAINT EFFECT ANALYSIS OF THE SEMI-ELLIPTICAL SURFACE CRACK FOR A REACTOR VESSEL SUBJECTED TO PRESSURIZED |
| title_full_unstemmed | CONSTRAINT EFFECT ANALYSIS OF THE SEMI-ELLIPTICAL SURFACE CRACK FOR A REACTOR VESSEL SUBJECTED TO PRESSURIZED |
| title_short | CONSTRAINT EFFECT ANALYSIS OF THE SEMI-ELLIPTICAL SURFACE CRACK FOR A REACTOR VESSEL SUBJECTED TO PRESSURIZED |
| title_sort | constraint effect analysis of the semi elliptical surface crack for a reactor vessel subjected to pressurized |
| topic | Semi-elliptical surface crack High temperature and pressure Constraint effect J-integral Constraint parameter |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2017.05.044 |
| work_keys_str_mv | AT wangzhongxian constrainteffectanalysisofthesemiellipticalsurfacecrackforareactorvesselsubjectedtopressurized AT guohuajing constrainteffectanalysisofthesemiellipticalsurfacecrackforareactorvesselsubjectedtopressurized |