Abstract
The main topic of this study is an estimation of loading conditions of failed structures. We deal with failed crane-hooks as an example. We examine the relation between the applied load and deformation of hook by FEM analysis. In the FEM analysis, we implement an elasto-plastic deformation analysis. The relation is recorded in the Load-Deformation (LD) database. The feature points are detected on failed hook image in order to compare the image with the recorded deformation information in the Load-Deformation database. The analysis record corresponding to the failed hook image is then obtained by means of a difference-minimization approach. We estimate the loading condition for some samples by our approach. We show the effectiveness of this estimation approach.
