Fig. 1. Principles of data mapping optimization

Fig. 2. Neural network optimized by genetic algorithm

Fig. 3. Structure of neural network

Fig. 4. Testing site of casing

Fig. 5. Installation of structural static and fatigue tester

Fig. 6. Loading curve

Fig. 7. DIC measurement results

Fig. 8. FEM simulation results

Fig. 9. FPFH feature matching

Fig. 10. Point cloud registration results

Fig. 11. Predictive output and expected output of neural network

Fig. 12. Prediction error of neural network

Fig. 13. Schematic diagram of DIC grid and finite element grid

Fig. 14. Percentage error in grid mapping

Fig. 15. Data mapping optimization results

Fig. 16. maximum principal strain of FEM and DIC

Fig. 17. Deviation of strain comparison