Dynamic testing of metal materials

U ovom radu opisane su dinamičke metode ispitivanja metalnih materijala. Navedena je podjela ispitivanja mehaničkih svojstava materijala i njihov povijesni razvoj. Udarni rad loma je detaljno opisan kao i njegove metode ispitivanja. Također su navedeni i opisani faktori koji imaju utjecaj na žilavost materijala. U drugom dijelu rada opisan je umor materijala i teorije o nastanku pukotina uz dijagrame o dinamičkoj izdržljivosti. U ovom dijelu su također opisani strojevi za ispitivanje umaranjem te metode predviđanja umora materijala.In this work dynamic methods of testing metallic materials are described. The division of testing of mechanical properties of materials and their historical development is given. Impact energy is described in detail as well as its testing methods. Factors that have influence on the toughness of the material are also listed and described. In the second part of the work the material fatigue and the theory of crack formation are described with diagrams of dynamic durability. In this part fatigue testing machines are also described and methods for predicting material fatigue