PSI - Issue 59

J. Gerlici et al. / Procedia Structural Integrity 59 (2024) 66–73 Juraj Gerlici et al. / Structural Integrity Procedia 00 (2023) 000 – 000

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Fig. 5. The 3-D model of the open wagon body with sandwich panel walls

Fig. 6. The design diagram of the open wagon body with sandwich panel walls

The energy-absorbing material in the sandwich panels was simulated by the spring-damper connection with the corresponding elastic-viscous characteristics specified above. The resting of the body on the bogies was modelled by rigid connections on the centre plates and side bearers. The finite element model was formed by isoparametric tetrahedra. Their number was 351.885 units, and the number of nodes was 116.577. The results of calculation are shown in Fig. 7 and 8.

Fig. 7. The stress state of the open wagon body with sandwich panel walls