Image Evolutionary Analysis of Density Field
密度场图像演化分析

Image evolutionary analysis of density field induced by propagation of short cracks is a most discussed topic in the research of the damage caused by fatigue using ICT(industrial computed tomography).During simulation,short cracks are modeled by using a subvoxel model and local discretization,and modeling of uneven density field is fulfilled.Detailed characteristics can be detected by high resolution CT(computed tomography).Macro behaviors can be detected by low resolution CT.Two dimensional and three dimensional signal analysis of activity effect of short cracks are conducted.Membership degrees are introduced,and enhancement algorithm is proposed based on fuzzy sets.Three dimensional signals detected are enhanced in this way,which will help to monitor the activity effect of short cracks.