Croatian Union of Mechanical Engineers and Naval Architects
Abstract
The paper describes the Finite Element Method (FEM) analysis of elastic plastic deformation of steel tube impact absorbers for railway vehicles. Experiment investigation is used as a base for FEM modelling and simulation. The developed FEM model includes material nonlinearity (plasticity), nonlinear contact and large deformation of finite elements. All of aspects used in the absorber FEM model are detailed explained. The Finite Element Analysis results for a chosen absorber are presented and discussed. Developed model opens the possibilities for next investigations in similar problems.Rad daje opis analize elastoplastičnih deformacija čeličnog cevnog apsorbera kinetičke energije sudara željezničkih vozila metodom konačnih elemenata (MKE). Eksperimentalna istraživanja korišćena su kao osnova za modeliranje i simuliranje MKE modela. Razvijeni model konačnih elemenata uključuju nelinearne karakteristike materijala (plastičnost), nelinearni kontakt i velike deformacije konačnih elemenata. Svi aspekti korišćeni u MKE modelu apsorbera detaljno su opisani. Rezultati MKE analize za izabrani apsorber prikazani su i diskutovani. Razvijeni model otvara nove mogućnosti za buduća istraživanja u sličnim problemima
