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2011
Conference Paper
Titel
3-D image-based simulation for ultrasonic wave propagation in heterogeneous and anisotropic materials
Abstract
Time domain simulation tools for ultrasonic wave propagation in a target material with a complex outer surface or various inclusions are developed by combining the finite integration technique (FIT) and the finite element method (FEM) with an image-based modeling. In our simulation, the geometry of the target is determined by a digital image such as X-ray picture, CAD data, etc. and the processed voxel data is directly fed into the numerical calculation with the FIT or FEM. The accuracy of the two methods is discussed by comparison with the boundary element method. A simulation of the ultrasonic testing for a concrete material is shown with the 3-D image-based FIT.