PT Journal AU Vavro, J Handrik, M TI Numeric Analysis of the Eigenfrequencies of the Ductile Cast Iron with the Spheroidal Shape of Graphite SO Acta Mechanica Slovaca PY 2010 BP 64 EP 73 VL 14 IS 4 DI 10.2478/v10147-011-0036-6 DE Eigenfrequencies; Eigenshapes; Modeling of Shape of Nodular iron Nodule; Finite Element Method AB The given work is focused on the analysis of the eigenfreqencies and natural shapes as well as it is connected with stress distribution in the frequency area referring to the ductile cast iron with the spheroidal shape of graphite. The analysis was made with help of finite element method (FEM) in the software system ADINA.v.8.6.2. ER