Electric Potential CT Method Based on BEM Inverse Analyses for Measurement of Three-Dimensional Cracks

Electric Potential CT Method Based on BEM Inverse Analyses for Measurement of Three-Dimensional Cracks
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基于BEM反分析的电位CT法测量三维裂纹

DOI:
10.1007/978-4-431-68042-0_193
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发表时间:
1986
期刊:
--
影响因子:
--
通讯作者:
K. Ohji
K. Ohji
中科院分区:
--
文献类型:
--
作者:
S. Kubo;T. Sakagami;K. Ohji

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研究了电位CT法检测三维裂纹的可行性。该方法采用反分析技术,通过计算机处理裂纹体表面电位分布的观测值来检测裂纹。两个方案,即,对“边界积分方程反解法”和“最小余量法”进行了研究。对矩形表面裂纹、矩形内裂纹和L形表面裂纹进行了裂纹形状确定的数值模拟。结果表明,该方法的通用性。
Feasibility of the proposed electric potential CT method was studied for detecting and measuring three-dimensional cracks. This method uses techniques of inverse analysis, by which observed values of electric potential distribution on the surfaces of a cracked body are computer-processed to detect cracks. Two schemes, i.e., “Inverse Boundary-Integral-Equation Method” and “Least Residual Method” were examined. Numerical simulations of crack shape determination were made for a rectangular surface crack, a rectangular internal crack and an L-shaped surface crack. The results demonstrated the versatility of the proposed method.
DOI: --
发表时间: 2021
期刊:
影响因子: --
作者:
松本昭源;藤江清花;大賀輝昌;黒澤俊介;伊藤暁彦;Yoshi Fujiwara;鈴木和幸
通讯作者: 鈴木和幸