RT Journal Article SR Electronic A1 Vavro, Ján A1 Vavro, Ján A1 Handrik, Marián T1 Numeric Analysis of the Eigenfrequencies of the Ductile Cast Iron with the Spheroidal Shape of Graphite JF Acta Mechanica Slovaca YR 2010 VO 14 IS 4 SP 64 OP 73 DO 10.2478/v10147-011-0036-6 UL https://www.actamechanica.sk/artkey/ams-201004-0008.php 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.