| NEW ALGORITHM OF IDENTIFYING SHAPE OF FLAWS OR CRACKS IN EDDY CURRENT TESTING |
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| 引用本文： | 庄弘炜 马逸尘 张志斌 王应玺 曹剑锋 WANG Biao.NEW ALGORITHM OF IDENTIFYING SHAPE OF FLAWS OR CRACKS IN EDDY CURRENT TESTING[J].应用数学和力学(英文版),2005,26(11):1523-1530. |
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| 作者姓名： | 庄弘炜 马逸尘 张志斌 王应玺 曹剑锋 WANG Biao |
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| 作者单位： | College of Science，Xi’an Jiaotong University，Xi’an 710049，P.R.China，College of Science，Xi’an Jiaotong University，Xi’an 710049，P.R.China，College of Science，Xi’an Jiaotong University，Xi’an 710049，P.R.China，College of Science，Xi’an Jiaotong University，Xi’an 710049，P.R.China，Xi’an Thermal Power Research Institute，Xi’an 710032，P.R.China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China （No. 10371096） |
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| 摘 要： | Introduction Theuseofeddycurrenthasbeenwellrecognizedasamethodforthenondestructive testing(NDT)ofconductingmaterials1].Eddy currentswithlow frequencyareinducedin thematerialundertestbymeansofthesurfacescanninginterrogatingcoildrivenbyatime varyingcurrent…
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| 关 键 词： | 涡流 Nystrom法 疲劳裂纹 边界条件 |
| 文章编号： | 0253-4827（2005）11-1523-08 |
| 收稿时间： | 2003-07-15 |
| 修稿时间： | 2005-07-19 |
New algorithm of identifying shape of flaws or cracks in eddy current testing |
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| Hong-wei Zhuang,Yi-chen Ma,Zhi-bin Zhang,Ying-xi Wang,Jian-feng Cao.New algorithm of identifying shape of flaws or cracks in eddy current testing[J].Applied Mathematics and Mechanics(English Edition),2005,26(11):1523-1530. |
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| Authors: | Hong-wei Zhuang Yi-chen Ma Zhi-bin Zhang Ying-xi Wang Jian-feng Cao |
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| Institution: | 1. College of Science, Xi’an Jiaotong University, Xi’an, 710049, P.R.China
2. Xi’an Thermal Power Research Institute, Xi’an, 710032, P. R. China
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| Abstract: | Eddy-current inverse technique is a very important method to reconstruct the shape of flaws or cracks. Using the domain derivative of the far-field pattern for eddy-current inverse problem with Dirichlet boundary condition, a new algorithm to recover the shape of cracks was constructed and some numerical examples were given.The algorithm demonstrates that the algorithm is feasible and correct for obtaining a reasonable reconstruction of a shape of flaws or cracks from the far-field measurements even though using less data of directions of incidence and observations for fewer wave numbers are gived. |
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| Keywords: | eddy current domain derivative Nystrm method |
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