裂缝反演问题的线性抽样法

Linear sampling methods for the reconstruction of cracks

在无损检测等应用领域,经常需要借助声波检测物体的内部裂缝,在裂缝反演过程中需要建立求解算法,其中一类重要的算法是线性抽样法.结合前期的一些研究工作,介绍频域和时域裂缝反演问题的线性抽样法,并在此基础上介绍半空间内裂缝反演问题的求解思路.

In the application fields of nondestructive testing,it is often necessary to detect the internal cracks of objects with the help of acoustic waves.In the process of crack inversion,it is necessary to establish a solution algorithm,one of which is the linear sampling method.Combined with some previous research work,the linear sampling method of frequency domain and time domain crack inversion is introduced.On this basis,the solution idea of fracture inversion in half space is introduced.