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Issue:
Inversion of Circular Shaped Flaw in Rod with Inverse Born Approximation
Author(s):
Wu Bin
,
Zheng Gangfeng
,
He Cunfu
Pages:
572
-
576
Year:
2006
Issue:
4
Journal:
CHINESE JOURNAL OF APPLIED MECHANICS
Keyword:
Born近似
;
形状因子
;
特征函数
;
反演
;
散射
;
Abstract:
在三维弹性波散射问题的Born近似解基础上,进一步分析了在纵波入射条件下二维散射问题的Born近似解,对铝质长杆中的椭圆形空穴缺陷的散射场情况进行了对比分析;最后,提出了在低频下识别缺陷几何特征的二维逆Born近似法,并用此法对铝质长杆中的圆形空穴缺陷作了计算机模拟.
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