Fig. 1. Simulation examples using LS-DYNA (a) Car collision (b) Contact and crash (c) Drop test (d) Molding
Fig. 2. Coding training drone E1
Fig. 3. Three parts of E1 drone (a) Upper part (b) Lower part (c) Ring assay and internal part
Fig. 4. Finite element model for E1 drone
Fig. 5. Contact between upper part and lower part of E1 drone (a) Upper part (b) Lower part
Fig. 6. Area of interest in simulation
Fig. 7. Resultant displacement of Case1
Fig. 8. Equivalent stress of upper, lower and ring assembly for Case1
Fig. 9. Effective plastic strain of upper, lower and ring assembly for Case1
Fig. 10. Maximum equivalent stress of ring assembly for case1
Fig. 11. Resultant displacement of Case2
Fig. 12. Equivalent stress of upper, lower and ring assembly for Case2
Fig. 13. Effective plastic strain of upper, lower and ring assembly for Case2
Fig. 14. Maximum equivalent stress of upper part for case2
Fig. 15. Resultant displacement of Case1
Fig. 16. Equivalent stress of upper, lower and ring assembly for Case1
Fig. 17. Effective plastic strain of upper, lower and ring assembly for Case1
Fig. 18. Maximum equivalent stress of lower part for case3
Table 1. Material properties for E1 drone
Table 2. Yield strain and ultimate strain for evaluation
Table 3. Equivalent stress and safety factor by case
Table 4. Strain and safety factor by case
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