PSI - Issue 17

Radek Doubrava et al. / Procedia Structural Integrity 17 (2019) 190–197 Radek Doubrava/ Structural Integrity Procedia 00 (2019) 000 – 000

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The high-speed camera images were compared with the data from numerical simulations of the impact evolution (see Fig. 5).

Experiment

FEM

Time of impact [ms]

0 ms

0.5 ms

1 ms

Fig. 5. (a) Metallic flat test specimen experimental (b) Metallic flat test specimen FEM simulation

4.2. Analyses of the damage and plastic deformation

Measurement of the plastic deformation in the metallic test specimens were performed using raster scanning with a coordinate recorder after the impact test. The plastic deformation was measured in two perpendicular directions in the centre of the test specimen (see Fig. 2). Figure 6 shows a comparison between the experiment data and numerical simulation results for the plastic deformation after impact on a metallic test specimen. The impact point for the numerical simulation was shifted based on the results from the actual test results (determined via high-speed camera pictures and plastic deformation measurements).

Fig. 6. Comparison between the experiment and simulation results for the plastic deformation after impact on the metallic test specimen.